<PAGE>

                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM 10-Q


(Mark One)
[X]  Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
     For the quarterly period ended September 30, 2000.

or

[ ]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934
     For the transition period from ____________ to____________.

                      Commission File Number (000-25865)

                        Copper Mountain Networks, Inc.
            (Exact name of registrant as specified in its charter)

          Delaware                              33-0702004
          (State or other jurisdiction of       (I.R.S. Employer
          incorporation or organization)        Identification No.)

               2470 Embarcadero Way, Palo Alto, California 94303
                                (650) 687-3300
  (Address, including zip code, and telephone number, including area code, of
                         principal executive offices)

     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.        Yes   X     No
                                                     -----      -----
     The number of shares outstanding of the issuer's common stock, $.001 par
value, as of October 26, 2000 was 51,826,143.
<PAGE>

                         COPPER MOUNTAIN NETWORKS, INC.
                                     INDEX

<TABLE>
<CAPTION>
                                                                            Page
<S>                                                                         <C>
Part I.  Financial Information

         Item 1.  Financial Statements

                  Condensed Balance Sheets at September 30, 2000 and
                     December 31, 1999                                        2

                  Condensed Statements of Income for the three and nine
                     months ended September 30, 2000 and 1999                 3

                  Condensed Statement of Stockholders' Equity for the
                     nine months ended September 30, 2000                     4

                  Condensed Statements of Cash Flows for the nine months
                     ended September 30, 2000 and 1999                        5

                  Notes to Condensed Financial Statements                     6

         Item 2.  Management's Discussion and Analysis of Financial
                  Condition and Results of Operations                         9

         Item 3.  Quantitative and Qualitative Disclosures About Market
                  Risk                                                       28

Part II. Other Information

         Item 1.  Legal Proceedings                                          28

         Item 6.  Exhibits and Reports on Form 8-K                           28

</TABLE>

<PAGE>

                        COPPER MOUNTAIN NETWORKS, INC.
                           CONDENSED BALANCE SHEETS
                                (in thousands)

<TABLE>
<CAPTION>
                                                                      September 30,          December 31,
                                                                          2000                  1999
                                                                      -------------          ------------
                                                                       (unaudited)
<S>                                                                   <C>                    <C>
ASSETS

Current assets:
   Cash and cash equivalents                                             $ 71,762              $ 25,405
   Short-term marketable investments                                       92,820                91,764
   Accounts receivable, net                                                49,845                18,992
   Inventory                                                               20,164                12,801
   Other current assets                                                     5,923                 1,530
                                                                         --------              --------
Total current assets                                                      240,514               150,492
Property and equipment, net                                                19,434                 8,825
Purchased intangibles, net                                                 51,485                  ----
Deferred tax assets                                                        11,268                  ----
Other assets                                                                5,403                 6,458
                                                                         --------              --------
Total assets                                                             $328,104              $165,775
                                                                         ========              ========

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
   Accounts payable                                                      $ 14,603              $  7,887
   Accrued liabilities                                                     25,692                 8,752
   Deferred tax liability                                                  21,197                    48
   Current portion of obligations under capital leases
       and equipment notes payable                                          2,006                 1,618
                                                                         --------              --------
Total current liabilities                                                  63,498                18,305
Obligations under capital leases and equipment
    notes payable, less current portion                                     4,483                 4,044
Other accrued                                                                 226                   105

Stockholders' equity:
   Common stock                                                                52                    48
   Additional paid in capital                                             238,017               159,149
   Deferred compensation                                                   (2,940)               (4,565)
   Retained earnings (accumulated deficit)                                 24,768               (11,311)
                                                                         --------              --------
Total stockholders' equity                                                259,897               143,321
                                                                         --------              --------
Total liabilities and stockholders' equity                               $328,104              $165,775
                                                                         ========              ========
</TABLE>

See accompanying notes to condensed financial statements

                                       2
<PAGE>

                        COPPER MOUNTAIN NETWORKS, INC.
                        CONDENSED STATEMENTS OF INCOME
                     (in thousands, except per share data)
                                  (unaudited)

<TABLE>
<CAPTION>
                                                      Three Months Ended                           Nine Months Ended
                                                         September 30,                                September 30,
                                                 -----------------------------              --------------------------------
                                                  2000                  1999                  2000                    1999
                                                 -------               -------              --------                 -------
<S>                                              <C>                   <C>                  <C>                      <C>
Net revenue                                      $93,522               $32,016              $234,530                 $68,122
Cost of revenue                                   44,083                15,017               108,263                  32,216
                                                 -------               -------              --------                 -------
  Gross profit                                    49,439                16,999               126,267                  35,906
Operating expenses:
  Research and development                        10,365                 4,065                25,537                   9,903
  Sales and marketing                              9,967                 4,180                25,000                  10,079
  General and administrative                       4,355                 1,373                10,935                   3,835
  Amortization of purchased intangibles            5,329                  ----                12,427                    ----
  Amortization of deferred stock
   compensation                                      811                 1,192                 3,007                   4,486
  Write-off of in-process research and
   development                                      ----                  ----                 6,300                    ----
                                                 -------               -------              --------                 -------
      Total operating expenses                    30,827                10,810                83,206                  28,303
                                                 -------               -------              --------                 -------
Income from operations                            18,612                 6,189                43,061                   7,603

Other income (expense):
     Interest and other income                     2,698                 1,758                 6,927                   2,678
     Interest expense                               (149)                  (72)                 (445)                   (193)
                                                 -------               -------              --------                 -------
Income before income taxes                        21,161                 7,875                49,543                  10,088
Provision for income taxes                         9,086                 3,229                13,464                   4,136
                                                 -------               -------              --------                 -------
Net income                                       $12,075               $ 4,646              $ 36,079                 $ 5,952
                                                 =======               =======              ========                 =======

Basic net income per share                       $  0.24               $  0.10              $   0.72                 $  0.23
                                                 =======               =======              ========                 =======

Diluted net income per share                     $  0.21               $  0.08              $   0.62                 $  0.12
                                                 =======               =======              ========                 =======

Basic common equivalent shares                    51,279                46,006                50,145                  25,808
                                                 =======               =======              ========                 =======

Diluted common equivalent shares                  58,440                56,544                58,173                  50,780
                                                 =======               =======              ========                 =======

</TABLE>

See accompanying notes to condensed financial statements.

                                       3
<PAGE>

                        COPPER MOUNTAIN NETWORKS, INC.
                  CONDENSED STATEMENT OF STOCKHOLDERS' EQUITY
                                (in thousands)
                                  (unaudited)


<TABLE>
<CAPTION>
                                               Common  Stock
                                              ----------------
                                                                Additional                    Retained Earnings           Total
                                              Number of           Paid in     Deferred          (Accumulated         Stockholders'
                                              Shares    Amount    Capital   Compensation          Deficit)               Equity
                                              --------  ------  ----------  -------------  ----------------------  ----------------
<S>                                           <C>        <C>     <C>         <C>            <C>                     <C>
Balance at December 31,  1999                   47,662     $48    $159,149      $(4,565)          $(11,311)             $143,321
  Common stock issued for acquisition of
     OnPREM                                      1,142       1      70,158          ----              ----                70,159

  Deferred compensation related to
     acquisition of OnPREM                        ----    ----        ----        (1,382)             ----                (1,382)

  Amortization related to deferred
     stock compensation                           ----    ----        ----         3,007              ----                 3,007

  Common stock issued under Employee
     Stock Purchase Plan                           143    ----       1,429          ----              ----                 1,429

  Tax benefit from the exercise of stock
     options                                      ----    ----       1,250          ----              ----                 1,250

  Exercise of options to purchase
     common stock                                2,694       3       6,031          ----              ----                 6,034

  Net income                                      ----    ----        ----          ----            36,079                36,079
                                              --------  ------  ----------  ------------   ---------------     -----------------

Balance at September 30, 2000                   51,641     $52    $238,017      $ (2,940)         $ 24,768              $259,897
                                              ========  ======  ==========  ============   ===============     =================
</TABLE>

           See accompanying notes to condensed financial statements

                                       4
<PAGE>

                        COPPER MOUNTAIN NETWORKS, INC.
                      CONDENSED STATEMENTS OF CASH FLOWS
                                (in thousands)
                                  (unaudited)


<TABLE>
<CAPTION>
                                                                  Nine Months Ended September 30,
                                                        -------------------------------------------------
                                                                       2000                       1999
                                                        ----------------------     ----------------------
<S>                                                       <C>                        <C>
Cash flows from operating activities:
  Net income                                                          $ 36,079                   $  5,952
  Adjustments to reconcile net income
     to net cash provided by operating activities:
       Depreciation and amortization                                    17,468                      1,803
       Non-cash compensation                                             3,007                      4,493
       Write-off of in-process research and development                  6,300                       ----
       Tax benefit from the sale of stock options                        1,250                       ----
       Deferred income taxes                                           (11,268)                      ----
       Changes in operating assets and liabilities:
          Accounts receivable                                          (30,853)                    (8,567)
          Inventory                                                     (7,363)                    (5,430)
          Other current assets and other assets                         (6,950)                      (337)
          Accounts payable and accrued liabilities                      40,735                     15,177
                                                                      --------                   --------
Net cash provided by operating activities                               48,405                     13,091
                                                                      --------                   --------

Cash flows from investing activities:
  Maturities (purchases) of marketable investments, net                  4,083                    (74,647)
  Purchases of property and equipment                                  (13,414)                    (5,688)
  Cash received in the purchase of OnPREM                                  844                       ----
                                                                      --------                   --------
Net cash used in investing activities                                   (8,487)                   (80,335)
                                                                      --------                   --------

Cash flows from financing activities:
  Proceeds from equipment notes                                            316                      2,203
  Payments on capital lease obligations                                   (527)                      (244)
  Payments on equipment notes payable                                     (812)                      (218)
  Proceeds from issuance of common stock                                 7,462                     88,849
                                                                      --------                   --------
Net cash provided by financing activities                                6,439                     90,590
                                                                      --------                   --------
Net increase in cash and cash equivalents                               46,357                     23,346

Cash and cash equivalents at beginning of period                        25,405                      7,631
                                                                      --------                   --------
Cash and cash equivalents at end of period                            $ 71,762                   $ 30,977
                                                                      ========                   ========

Supplemental information:
  Interest paid                                                       $    419                   $    193
                                                                      ========                   ========
  Issuance of stock for consulting services                           $   ----                   $      7
                                                                      ========                   ========
  Equipment acquired under capital lease obligations                  $  2,168                   $    742
                                                                      ========                   ========
</TABLE>

See accompanying notes to condensed financial statements

                                       5
<PAGE>

NOTE 1 - General

In management's opinion, the accompanying unaudited financial statements for
Copper Mountain Networks, Inc. (the "Company") for the three and nine month
periods ended September 30, 2000 and 1999 have been prepared in accordance with
generally accepted accounting principles for interim financial statements and
include all adjustments (consisting only of normal recurring accruals) that the
Company considers necessary for a fair presentation of its financial position,
results of operations, and cash flows for such periods. However, the
accompanying financial statements do not contain all of the information and
footnotes required by generally accepted accounting principles for complete
financial statements. All such financial statements are unaudited except for the
December 31, 1999 balance sheet. This quarterly report and the accompanying
financial statements should be read in conjunction with the Company's audited
financial statements and notes thereto presented in its Annual Report on Form
10-K for the year ended December 31, 1999 (the "1999 Annual Report").  Footnotes
which would substantially duplicate the disclosures in the Company's audited
financial statements for the year ended December 31, 1999 contained in the 1999
Annual Report have been omitted. The interim financial information contained in
this quarterly report is not necessarily indicative of the results to be
expected for any other interim period or for the full year ending December 31,
2000.


NOTE 2 - Management Estimates and Assumptions

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities at the date of the
financial statements and reported amounts of revenues and expenses during the
reporting period.  Actual results could differ from those estimates.


NOTE 3 - Net Income Per Share

Basic and diluted net income per share has been computed in accordance with
Statement of Financial Accounting Standards ("SFAS") No. 128, "Earnings Per
Share," using the weighted-average number of shares of common stock outstanding
during the period including any dilutive common stock equivalents.

Common stock equivalents used to calculate diluted earnings per share totaled
7.2 million and 8.0 million for the three and nine month periods ended September
30, 2000, respectively.  Common stock equivalents used to calculate diluted
earnings per share totaled 10.5 million and 25.0 million for the three and nine
month periods ended September 30, 1999, respectively.


NOTE 4 - Acquisition

On February 29, 2000, the Company completed its acquisition of privately-held
OnPREM Networks Corporation ("OnPREM") of Fremont, California.  OnPREM is a
developer of highly integrated DSL solutions for the small and medium building
Multi-Tenant Unit ("MTU") market.  Under the terms of the agreement, Copper
Mountain acquired OnPREM in exchange for the issuance of approximately 1.1
million shares of Copper Mountain common stock and the assumption of options
outstanding under the OnPREM 1998 Stock Plan.

                                       6
<PAGE>

The purchase price of the OnPREM acquisition, excluding acquisition costs, was
$70.1 million.  The acquisition was accounted for as a purchase.  On the date of
acquisition the purchase price was allocated as follows (in thousands):

              Purchased intangibles                        $65,360
              In-process research and development            6,300
              Current assets                                 1,000
              Non-current assets                               372
              Current liabilities                             (488)
              Accrued acquisition costs                     (3,700)
              Deferred compensation                          1,286
                                                           -------
                                                           $70,130
                                                           =======

In connection with the acquisition of OnPREM, the Company wrote-off the
purchased in-process research and development of $6.3 million, which was charged
to operations upon completion of the acquisition.  The purchased intangibles
will be amortized over their estimated useful life of three years.


NOTE 5 - Pro forma results of acquisition

If the OnPREM acquisition would have occurred on January 1, 1999, pro forma
financial information would have been as follows (in thousands, except per share
data):

<TABLE>
<CAPTION>
                                                Three Months Ended                          Nine Months Ended
                                                   September 30,                              September 30,
                                     --------------------------------------     ---------------------------------------
                                                2000                 1999                  2000                  1999
                                     -----------------    -----------------     -----------------     -----------------
<S>                                    <C>                  <C>                   <C>                   <C>
  Net revenue                                  $93,522              $32,016              $234,530              $ 68,122
  Net income (loss)                             12,075               (1,225)               31,344               (11,899)
  Basic net income (loss) per share               0.24                (0.03)                 0.63                 (0.46)
  Diluted net income (loss) per share             0.21                (0.03)                 0.54                 (0.46)
</TABLE>


NOTE 6 - Income taxes

During the quarter ended March 31, 2000, the Company decreased its valuation
allowance related to its deferred tax assets by $9.0 million as the realization
of such assets became probable.  The reduction of the valuation allowance
decreased the tax provision for the nine months ending September 30, 2000 by
approximately $7.7 million and increased additional paid in capital by $1.3
million.  Excluding this adjustment, the Company currently estimates its annual
effective income tax rate to be approximately 43.0% for the year ending December
31, 2000.


NOTE 7 - Leased Equipment

During the quarter ended September 30, 2000, the Company entered into a $10.0
million credit facility with a customer for the purchase of the Company's
equipment under a capital lease agreement. As of September 30, 2000, the
customer had utilized $8.9 million of the funds available under this credit
facility. The borrowings under the capital lease agreement are to be repaid in
16 equal quarterly installments and accrue interest at 12.0%. The lease is being
accounted for as a sales-type capital lease. The obligation is secured by the
related equipment. As of September 30, 2000, $2.9 million and $2.9 million of
the lease receivable were classified in the Company's balance sheet as other
current assets and other assets, respectively.

                                       7
<PAGE>

NOTE 8 - Composition of Certain Balance Sheet Captions (in thousands)

                                      September 30,     December 31,
                                          2000              1999
                                     --------------     ------------
                                     (unaudited)
          Inventory:
            Raw materials                $13,632           $ 6,003
            Work in process                1,816             3,148
            Finished goods                 4,716             3,650
                                         -------           -------
                                         $20,164           $12,801
                                         =======           =======

          Accrued liabilities:
            Accrued compensation         $ 4,304           $ 2,293
            Accrued warranty               4,369             1,930
            Accrued vacation               1,903             1,385
            Deferred revenue               3,533               275
            Other                         11,583             2,869
                                         -------           -------
                                         $25,692           $ 8,752
                                         =======           =======


NOTE 9 - Legal Proceedings

On October 20, 2000, plaintiff Ariel Hernandez, on behalf of herself and
purportedly on behalf of a class of Company stockholders, filed a complaint in
the United States District Court for the Northern District of California against
the Company and two officers of the Company, alleging violations of the federal
securities laws related to declines in the Company's stock price. Subsequently,
at least ten similar lawsuits were filed in the same court against the Company
and the same two officers. The complaints allege securities fraud in connection
with various statements and alleged omissions to the public and to the
securities markets. It is anticipated that these complaints, and any similar
complaints that may be filed arising out of declines in the price of the
Company's stock, will be consolidated into a single action. The Company
anticipates filing a motion to dismiss all of these complaints. No discovery has
taken place. The lawsuits are at an early stage and the extent of possible
damages, if any, cannot yet be determined.


NOTE 10 - New Accounting Standards

In June 1998, the FASB issued SFAS No. 133 ("SFAS 133"), "Accounting for
Derivative Instruments and Hedging Activities," as amended in June 2000 by SFAS
No. 138 ("SFAS 138"), "Accounting for Certain Derivative Instruments and Certain
Hedging Activities," which requires companies to recognize all derivatives as
either assets or liabilities in the balance sheet and measure such instruments
at fair value. As amended by SFAS No. 137 ("SFAS 137"), "Accounting for
Derivative Instruments and Hedging Activities - Deferral of the Effective Date
of FASB Statement No. 133," the provisions of SFAS 133 will require adoption no
later than the beginning of the Company's fiscal year ending December 31, 2001.
Adoption of SFAS 133, as amended by SFAS 138, is not expected to have a material
impact on the Company's financial statements.

In December 1999, the Securities and Exchange Commission issued Staff Accounting
Bulletin No. 101, (SAB 101) "Revenue Recognition." An amendment in June 2000
delayed the effective date until the fourth quarter of 2000. The adoption of SAB
101 will not have a material impact on the Company's financial statements.

                                       8
<PAGE>

Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

Forward Looking Statements

     This document contains forward-looking statements. These statements relate
to future events or our future financial performance. In some cases, you can
identify forward-looking statements by terminology such as "may," "will,"
"should," "except," "plan," "anticipate," "believe," "estimate," "predict,"
"potential" or "continue," the negative of such terms or other comparable
terminology. These statements are only predictions. Actual events or results may
differ materially.

     Although we believe that the expectations reflected in the forward-looking
statements are reasonable, we cannot guarantee future results, levels of
activity, performance or achievements. Moreover, neither we nor any other person
assumes responsibility for the accuracy and completeness of the forward-looking
statements. We are under no duty to update any of the forward-looking statements
after the date of this report to conform such statements to actual results or to
changes in our expectations.

     Readers are also urged to carefully review and consider the various
disclosures made by us which attempt to advise interested parties of the factors
which affect our business, including without limitation the disclosures made
under the caption "Management's Discussion and Analysis of Financial Condition
and Results of Operations" and under the caption "Risk Factors" included herein
and in the Company's Annual Report on Form 10-K for the year ended December 31,
1999 and other reports and filings made with the Securities and Exchange
Commission.

Overview

     From Copper Mountain's inception in March 1996 through December 1997, its
operating activities related primarily to developing, building and testing
prototype products; building its technical support infrastructure; commencing
the staffing of its marketing, sales and customer service organizations; and
establishing relationships with its customers.  We commenced shipments of our
CopperEdge product family in September 1997, including line cards for these
CopperEdge systems and our CopperRocket DSL customer premise equipment, or DSL
CPE.

     Our revenue is generated primarily from sales of our central office-based
equipment: our CopperEdge 200 DSL concentrators, or CE200, the related wide area
network cards, line cards and, to a lesser extent, from sales of our DSL CPE.
We also sell our CopperEdge 150, or CE150, and OnPREM 2400, or OP 2400, DSL
concentrators to customers in the multiple tenant unit, or MTU, market.

     For the year ended December 31, 1999, sales to our three largest customers
accounted for approximately 88% of our revenue, of which sales to NorthPoint
Communications, Inc., Rhythms NetConnections Inc. and Lucent Technologies, Inc.
accounted for approximately 37%, 28%, and 23% of our revenue, respectively.
This concentration of revenue continued during the nine months ended September
30, 2000, with sales to our three largest customers; NorthPoint, Lucent, and
Rhythms accounting for approximately 26%, 22%, and 11% of our revenue,
respectively.  While the level of sales to any specific customer is anticipated
to vary from period to period, we expect that we will continue to have
significant customer concentration for the foreseeable future.

     We market and sell our products directly to telecommunications service
providers and through strategic original equipment manufacturers and
distributors.  We generally recognize revenue from product sales upon shipment
if collection of the resulting receivable is probable and product returns can be
reasonably estimated.  No revenue is recognized on products shipped on a trial
basis.  Estimated sales returns, based on historical experience by product, are
recorded at the time the product revenue is recognized.  To date, we have not
generated material revenues from international sources.

     We expect our gross margin to be affected by many factors including
competitive pricing pressures, fluctuations in manufacturing volumes, costs of
components and sub-assemblies, costs from our contract manufacturers, the mix of
products or system configurations sold and the volume and timing of sales of

                                       9
<PAGE>

follow-on line cards for CopperEdge systems shipped in prior periods.
Additionally, our gross margin may fluctuate due to changes in our mix of
distribution channels. Currently, we derive the majority of our revenue from
sales made directly to telecommunications service providers. A significant
increase in our original equipment manufacturer revenue or revenues from
products sold through distributors would adversely impact or reduce our gross
margin.

     To date, gross margin on sales of our CopperEdge products and related wide
area network and line cards, typically sold as a combined system, has been
higher than gross margins on sales of DSL CPE.  Furthermore, combined CE200
systems are not generally fully-populated (i.e., less than the eight line cards
which each system can support or a capacity of 192 subscribers) when sold.  When
our customers add more subscribers than are supported in the initial
configuration, we expect that these customers will purchase additional line
cards from us to increase subscriber capacity.  The sale of additional line
cards generates higher gross margin than the initial sale of combined systems.
Gross margin on our DSL CPE is expected to decline in the future and we expect
to face pricing competition which may result in lower average selling prices for
these products as other suppliers of Copper Mountain compatible CPE enter the
market.  As the telecommunications service providers that purchase our products
make their services broadly available to their customers, we expect our product
mix to continue to be skewed more heavily toward sales of the Copper Edge family
and the related line cards.

     We outsource most of our manufacturing and supply chain management
operations, and we conduct manufacturing engineering, quality assurance, program
management, documentation control, and product repairs at our facility in San
Diego, California. Accordingly, a significant portion of our cost of revenue
consists of payments to our contract manufacturer, Flextronics International
Ltd. On an ongoing basis we work with Flextronics, our manufacturing partner, to
lower per unit product costs and to achieve manufacturing economies of scale.
However, we cannot assure you that such improvements will continue to occur or
to what extent they may occur. The failure to obtain such cost improvements
could materially adversely affect our gross margins and operating results.

     Research and development expenses consist principally of salaries and
related personnel expenses, consultant fees and prototype expenses related to
the design, development and testing of our products and enhancement of our
network management software. We expense all research and development expenses as
incurred. We believe that continued investment in research and development is
critical to attaining our strategic product, market, and cost-reduction
objectives and, as a result, we expect these expenses to increase in absolute
dollars in the future.

     Sales and marketing expenses consist of salaries, commissions and related
expenses for personnel engaged in marketing, sales and field service support
functions, as well as trade shows and promotional expenses. We intend to invest
in marketing, business development activities, selling and promotional programs,
and therefore we expect expenses related to these programs to continue to
increase in absolute dollars in the future. In addition, we expect to expand our
field sales operations and customer support organizations, which would also
result in an increase in sales and marketing expenses.

     General and administrative expenses consist primarily of salaries and
related expenses for executive, finance, human resources, and administrative
personnel, recruiting expenses, professional fees and other general corporate
expenses. We expect general and administrative expenses to increase in absolute
dollars as we add personnel and incur additional costs related to the growth of
our business and operation as a public company.

     Amortization of deferred stock compensation resulted from the granting of
stock options to employees with exercise prices per share determined to be below
the fair values per share for financial reporting purposes of our common stock
at dates of grant. The deferred compensation is being amortized to expense in
accordance with FASB Interpretation No. 28 over the vesting period of the
individual options, generally over four years.  We recorded total deferred stock
compensation of $1.8 million, $2.4 million, $11.1 million, $234,000 and $1.4
million in 1996, 1997, 1998, 1999 and for the nine months ended September 30,
2000, respectively, and amortized $189,000, $1.5 million, $3.9 million, $5.4
million and $3.0 million in 1996, 1997, 1998, 1999 and for the nine months ended
September 30, 2000, respectively, leaving approximately $2.9 million to be
amortized in future periods.

                                       10
<PAGE>

Results of Operations

The following table sets forth, as a percentage of net revenue, certain income
data for the periods indicated.

<TABLE>
<CAPTION>
                                                      Three Months Ended                    Nine Months Ended
                                                         September 30,                         September 30,
                                          ---------------------------------     ---------------------------------
                                                   2000               1999               2000               1999
                                          --------------     --------------     --------------     --------------
<S>                                       <C>                <C>                <C>                <C>

Net revenue                                        100.0%             100.0%             100.0%             100.0%
Cost of revenue                                     47.1               46.9               46.2               47.3
                                          --------------     --------------     --------------     --------------
  Gross profit                                      52.9               53.1               53.8               52.7
Operating expenses:
  Research and development                          11.0               12.7               10.9               14.5
  Sales and marketing                               10.7               13.1               10.6               14.8
  General and administrative                         4.7                4.3                4.6                5.6
  Amortization of purchased intangibles              5.7               ----                5.3               ----
  Amortization of deferred stock
      compensation                                   0.9                3.7                1.3                6.6
  Write-off of in-process research
      and development                               ----               ----                2.7               ----
                                          --------------     --------------     --------------     --------------
      Total operating expenses                      33.0               33.8               35.4               41.5
                                          --------------     --------------     --------------     --------------
Income from operations                              19.9               19.3               18.4               11.2
Interest and other income, net                       2.7                5.3                2.7                3.6
                                          --------------     --------------     --------------     --------------
Income before income taxes                          22.6               24.6               21.1               14.8
Provision for income taxes                           9.7               10.1                5.7                6.1
                                          --------------     --------------     --------------     --------------
Net income                                          12.9               14.5               15.4                8.7
                                          ==============     ==============     ==============     ==============
</TABLE>


Three Months Ended September 30, 2000 vs. Three Months Ended September 30, 1999

     Net Revenue.   Net revenue increased from $32.0 million for the three
months ended September 30, 1999 to $93.5 million for the three months ended
September 30, 2000. This increase was due to increased sales of our CE200 and
CE150 DSL access concentrators, related line cards, and DSL CPE. Sales to our
four largest customers, NorthPoint, Network Telephone, McLeod, and Lucent
increased from $14.0 million, zero, zero and $5.2 million, respectively, for the
three months ended September 30, 1999 to $32.6 million, $12.9 million, $12.7
million, and $11.1 million, respectively, for the three months ended September
30, 2000.

     Gross Profit.   Our gross profit increased from $17.0 million for the three
months ended September 30, 1999 to $49.4 million for the three months ended
September 30, 2000. The increase in gross profit resulted primarily because of
the increase in net revenue for the period.  Gross profit percentages decreased
on a year over year basis, from 53.1% for the quarter ended September 30, 1999
to 52.9% for the quarter ended September 30, 2000.  The decrease in gross profit
as a percentage of sales was primarily due to increased volumes of lower margin
products.

     Research and Development.   Our research and development expenses increased
from $4.1 million for the three months ended September 30, 1999 to $10.4 million
for the three months ended September 30, 2000. This increase was due to an
increase in personnel expenses related to an increase in our engineering staff,
increased depreciation related to engineering lab equipment, increased
facilities expenses for development personnel and an increase in expensed
prototype materials.  Research and development expenses as a percentage of net
revenue decreased from 12.7% for the quarter ended September 30, 1999 to 11.0%
for the quarter ended September 30, 2000.

     Sales and Marketing.   Our sales and marketing expenses increased from $4.2
million for the three months ended September 30, 1999 to $10.0 million for the
three months ended September 30, 2000. This

                                       11
<PAGE>

increase was due to an increase in personnel expenses for sales and marketing
staff, increased sales compensation associated with higher net revenue, and
increased promotional and product marketing expenses during the stated periods.
Sales and marketing expenses as a percentage of net revenue decreased from 13.1%
of net revenue for the quarter ended September 30, 1999 to 10.7% for the quarter
ended September 30, 2000.

     General and Administrative.   Our general and administrative expenses
increased from $1.4 million for the three months ended September 30, 1999 to
$4.4 million for the quarter ended September 30, 2000. This increase was due to
increased staffing for finance and accounting, management information systems,
administrative and human resource personnel, and growth in recruiting and other
outside administrative expenses and services. General and administrative
expenses as a percentage of net revenue increased from 4.3% for the three months
ended September 30, 1999 to 4.7% for the three months ended September 30, 2000.

     Amortization of Purchased Intangibles.   Amortization of purchased
intangibles increased from zero for the three months ended September 30, 1999 to
$5.3 million for the three months ended September 30, 2000. We purchased OnPREM
Networks Corporation on February 29, 2000 for approximately $73.8 million. As a
result of the purchase we recorded purchased intangibles of approximately $71.6
million. Immediately following the purchase we wrote-off $6.3 million of in-
process research and development. The remaining purchased intangibles is being
amortized over a three-year period from the date of the acquisition.

     Interest and Other Income.   Interest and other income increased from $1.8
million for the three months ended September 30, 1999 to $2.7 million for the
quarter ended September 30, 2000. This increase was primarily due to higher
average cash balances during the three months ended September 30, 2000.

     Interest Expense.   Our interest expense increased from $72,000 for the
three months ended September 30, 1999 to $149,000 for the three months ended
September 30, 2000. This increase was primarily due to an increase in the amount
outstanding under capital lease and equipment notes payable facilities as a
result of additional financing of computers, equipment for research and
development and for other equipment.

     Provision  for Income Taxes.   Our effective income tax rate for the three
months ended September 30, 2000 was 43%, which approximates the combined federal
and California (net of federal benefit) statutory rate.  The provision for
income taxes for the three months ended September 30, 2000 and 1999 are based on
an estimate of the effective income tax rate for the entire year.


Nine Months Ended September 30, 2000 vs. Nine Months Ended September 30, 1999

     Net Revenue.   Net revenue increased from $68.1 million for the nine months
ended September 30, 1999 to $234.5 million for the nine months ended September
30, 2000.  This increase was due to increased sales of our CE200 and CE150 DSL
access concentrators and related line cards.  Sales to our three largest
customers, NorthPoint, Lucent, and Rhythms increased from $27.3 million, $6.9
million, and $26.9 million, respectively, for the nine months ended September
30, 1999 to $62.0 million, $52.0 million, and $25.8 million, respectively, for
the nine months ended September 30, 2000.

     Gross Profit.   Our gross profit increased from $35.9 million for the nine
months ended September 30, 1999 to $126.3 million for the nine months ended
September 30, 2000. The increase in gross profit occurred primarily because of
the increase in net revenue for the period.  Gross profit percentages also
increased on a year over year basis, from 52.7% for the nine months ended
September 30, 1999 to 53.8% for the nine months ended September 30, 2000. The
increase in gross profit as a percentage of revenues  was primarily due to a
favorable product mix and decreased unit costs associated with improved overhead
absorption.

     Research and Development.   Our research and development expenses increased
from $9.9 million for the nine months ended September 30, 1999 to $25.5 million
for the nine months ended September 30, 2000. This increase was due to an
increase in personnel expenses related to an increase in our engineering staff,
increased depreciation related to engineering lab equipment and expensed
prototype materials.

                                       12
<PAGE>

Research and development expenses as a percentage of net revenue decreased from
14.5% for the nine months ended September 30, 1999 to 10.9% for the nine months
ended September 30, 2000.

     Sales and Marketing.   Our sales and marketing expenses increased from
$10.1 million for the nine months ended September 30, 1999 to $25.0 million for
the nine months ended September 30, 2000. This increase was due to an increase
in personnel expenses for sales and marketing staff, increased sales
compensation associated with higher net revenue, and increased promotional and
product marketing expenses. Sales and marketing expenses as a percentage of net
revenue decreased from 14.8% of net revenue for the nine months ended September
30, 1999 to 10.6% for the nine months ended September 30, 2000. This decrease
was primarily the result of an increase in our net revenue for the nine months
ended September 30, 2000.

     General and Administrative.   Our general and administrative expenses
increased from $3.8 million for the nine months ended September 30, 1999 to
$10.9 million for the nine months ended September 30, 2000.  This increase was
due to increased staffing for management information systems, administrative and
human resource personnel, and growth in other corporate administrative expenses.
General and administrative expenses as a percentage of net revenue decreased
from 5.6% for the nine months ended September 30, 1999 to 4.6% for the nine
months ended September 30, 2000.

     Amortization of Purchased Intangibles.   Amortization of purchased
intangibles increased from zero for the nine months ended September 30, 1999 to
$12.4 million for the nine months ended September 30, 2000. We purchased OnPREM
Networks Corporation on February 29, 2000 for approximately $73.8 million. As a
result of the purchase we recorded purchased intangibles of approximately $71.6
million. Immediately following the purchase we wrote-off $6.3 million of in-
process research and development. The remaining purchased intangibles is being
amortized over a three-year period from the date of the acquisition.

     Interest and Other Income.   Interest and other income increased from $2.7
million for the nine months ended September 30, 1999 to $6.9 million for the
nine months ended September 30, 2000. This increase was primarily due to higher
average cash balances during the nine months ended September 30, 2000, which
included the proceeds from our initial public offering completed in May of 1999.

     Interest Expense.   Our interest expense increased from $193,000 for the
nine months ended September 30, 1999 to $445,000 for the nine months ended
September 30, 2000. This increase was primarily due to an increase in the amount
outstanding under capital lease and equipment notes payable facilities as a
result of additional financing of computers, equipment for research and
development and for other equipment.

     Provision  for Income Taxes.   The provision for income taxes for the nine
months ended September 30, 2000 and 1999 are based on an estimate of the
effective income tax rate for the entire year offset in 2000 by the elimination
of the valuation allowance related to its deferred tax assets as the realization
of such assets became probable.  The reduction of the valuation allowance
decreased the tax provision by approximately $7.7 million.


Liquidity and Capital Resources

     From our inception through April 1999, we financed our operations primarily
through the sale of preferred equity securities. In total, we raised
approximately $44.5 million, net of fees and expenses, through the sale of
preferred equity during that period. In May 1999, we closed our initial public
offering with proceeds, net of underwriting fees, of approximately $89.9
million. We have also utilized available financing for the purchase of capital
equipment.

      At September 30, 2000, we had cash and cash equivalents of $71.8 million
and short-term marketable investments of $92.8 million.


                                       13
<PAGE>

     Cash provided by operating activities for the nine months ended September
30, 2000 and 1999 was $49.8 million and $13.1 million, respectively. The
relative increase in cash provided by operating activities for the nine months
ended September 30, 2000 compared to the same period in the prior year was
primarily the result of an increase in net income of $30.1 million.

     Cash used in investing activities for the nine months ended September 30,
2000 and 1999 was $9.8 million and $80.3 million, respectively. The relative
decrease in cash used in investing activities for the nine months ended
September 30, 2000 compared to the same period in the prior year was the result
of net maturities of marketable investments which was partially offset by an
increase in the purchase of computers and other equipment.

     Cash provided by financing activities for the nine months ended September
30, 2000 and 1999 was $6.3 million and $90.6 million, respectively. The decrease
in cash provided by financing activities for the nine months ended September 30,
2000 compared to the same period in the prior year was primarily due to the
proceeds received from our initial public offering in May 1999.

     In August 1999, the Company entered into a credit facility with a bank for
the purchase of equipment. The credit facility includes $2.4 million in
equipment loans and $2.6 million in commitments for the purchase of equipment
under a capital lease agreement. As of September 30, 2000, the full amount of
funds available under this credit facility had been utilized. The borrowings
under the equipment loans and the capital lease agreement are to be repaid in 48
equal monthly installments and accrue interest at 10.8%. Both obligations are
secured by the related equipment.

     In June 2000, the Company secured a $5.0 million credit facility with a
financing company for the purchase of equipment under a capital lease agreement.
As of September 30, 2000, $3.9 million of this credit facility was available for
future borrowings.  The borrowings under the capital lease agreement are to be
repaid in 36 equal monthly installments and accrue interest at 10.8% per annum.
The obligation is secured by the related equipment.

     In August 2000, the Company entered into an $800,000 credit facility with a
financing company for the purchase of equipment under a capital lease agreement.
As of September 30, 2000, the full amount of funds available under this credit
facility had been utilized.  The borrowings under the capital lease agreement
are to be repaid in 48 equal monthly installments and accrue interest at 9.85%
per annum.  The obligation is secured by the related equipment.

     We have no material commitments other than obligations under our credit
facilities and operating and capital leases.  Our future capital requirements
will depend upon many factors, including the timing of research and product
development efforts and expansion of our marketing efforts.  We expect to
continue to expend funds on property and equipment related to the expansion of
facility infrastructure, computer equipment and for research and development
laboratory and test equipment to support on-going research and development
operations.

     We believe that our cash and cash equivalents balances, short-term
marketable investments and funds available under our existing credit facilities
will be sufficient to satisfy our cash requirements for at least the next twelve
months. Our management intends to invest our cash in excess of current operating
requirements in interest-bearing, investment-grade securities.

                                       14
<PAGE>

Risk Factors That May Affect Results of Operations and Financial Condition

     You should carefully consider the following risk factors and the other
information included herein as well as the information included in our Annual
Report on Form 10-K for the year ended December 31, 1999, and other reports and
filings made with the Securities and Exchange Commission before investing in our
common stock.  Our business and results of operations could be seriously harmed
by any of the following risks.  The trading price of our common stock could
decline due to any of these risks, and you may lose part or all of your
investment.


     Copper Mountain May Not Sustain Annual Profitability

     Copper Mountain anticipates continuing to incur significant sales and
marketing, research and development and general and administrative expenses and,
as a result, we will need to generate higher revenues to sustain profitability
on an annual basis.  We cannot be certain that we will realize sufficient
revenues in the future to sustain profitability on an annual or quarterly basis.


     Copper Mountain Derives Almost All of Its Revenues From a Small Number of
Customers and Copper Mountain's Revenues May Decline Significantly if Any Major
Customer Cancels or Delays a Purchase of Copper Mountain's DSL Products

     Copper Mountain sells its products predominantly to competitive local
exchange carriers. Aggregate sales to our three largest customers accounted for
approximately 60% of our net revenue for the nine months ended September 30,
2000. Sales to our most significant customers, NorthPoint Communications, Inc.,
Lucent Technologies, Inc., and Rhythms NetConnections, Inc. accounted for
approximately 26%, 22%, and 11% of Copper Mountain's net revenue, respectively,
for the nine months ended September 30, 2000. Accordingly, unless and until we
diversify and expand our customer base, our future success will significantly
depend upon the timing and size of future purchase orders, if any, from these
three customers and, in particular:

     .  the product requirements of these customers;

     .  the financial and operational success of these customers; and

     .  the success of these customers' services deployed using our products.

     The loss of any one of our major customers or the delay of significant
orders from such customers, even if only temporary, could among other things
reduce or delay our net revenue, adversely impact our ability to sustain annual
or quarterly profitability and adversely impact our ability to generate positive
cashflow, and, as a consequence, could materially adversely affect our business,
financial condition and results of operations.


     Copper Mountain Has a Limited Operating History

     Copper Mountain has a very limited operating history as we were
incorporated in March 1996. Due to our limited operating history, it is
difficult or impossible for us to predict future results of operations and you
should not expect future revenue growth to be comparable to our recent revenue
growth. In addition, we believe that comparing different periods of our
operating results is not meaningful, as you should not rely on the results for
any period as an indication of our future performance. Investors in our common
stock must consider our business and prospects in light of the risks and
difficulties typically encountered by companies in their early stages of
development, particularly those in rapidly evolving markets such as the
telecommunications equipment industry. Some of the specific risks include
whether we are able:

     .  to compete in the intensely competitive market for telecommunications
        equipment;

                                       15
<PAGE>

     .  to establish and successfully grow international operations;

     .  to expand our sales, support and distribution organization;

     .  to effectively introduce new products and product enhancements in a
        timely and competitive fashion; and

     .  to expand our operational infrastructure.

We discuss these and other risks in more detail below.


     A Number of Factors Could Cause Copper Mountain's Operating Results to
Fluctuate Significantly and Cause Its Stock Price to be Volatile

     Copper Mountain's quarterly and annual operating results have fluctuated in
the past and are likely to fluctuate significantly in the future due to a
variety of factors, many of which are outside of its control.  If our quarterly
or annual operating results do not meet the expectations of securities analysts
and investors, the trading price of our common stock could significantly
decline.  Some of the factors that could affect our quarterly or annual
operating results include:

     .  the timing and amount of, or cancellation or rescheduling of, orders for
        our products and services, particularly large orders from our key
        customers and our strategic distribution partners;

     .  our ability to develop, introduce, ship and support new products and
        product enhancements and manage product transitions;

     .  announcements, new product introductions and reductions in price of
        products offered by our competitors;

     .  a decrease in the average selling prices of our products;

     .  our ability to achieve cost reductions;

     .  our ability to obtain sufficient supplies of sole or limited source
        components for our products;

     .  changes in the prices of our components;

     .  our ability to  maintain production volumes and quality levels for our
        products;

     .  the volume and mix of products sold and the mix of distribution channels
        through which they are sold;

     .  the loss of any one of our major customers or a significant reduction in
        orders from those customers;

     .  increased competition, particularly from larger, better capitalized
        competitors;

     .  fluctuations in demand for our products and services;

     .  costs relating to possible acquisitions and integration of technologies
        or businesses; and

     .  telecommunications and DSL market conditions and economic conditions
        generally.

                                       16
<PAGE>

     Historically, our backlog at the beginning of each quarter has not been
equal to expected revenue for that quarter. Accordingly, we are dependent upon
obtaining orders in a quarter for shipment in that quarter to achieve our
revenue objectives. In addition, due in part to factors such as the timing of
product release dates, purchase orders and product availability, significant
volume shipments of product could occur at the end of any given quarter. Failure
to ship products by the end of a quarter may adversely affect our operating
results. Furthermore, our customers may delay delivery schedules or cancel their
orders without notice. Due to these and other factors, quarterly revenue,
expenses and results of operations could vary significantly in the future, and
period-to-period comparisons should not be relied upon as indications of future
performance.


     Copper Mountain Sells the Majority of Its Products to Emerging
Telecommunications Service Providers That May Reduce or Discontinue Their
Purchase of Copper Mountain's Products At Any Time

     The customers of Copper Mountain's products to date have predominantly been
telecommunications service providers.  The market for the services provided by
telecommunications service providers who compete against traditional telephone
companies has only begun to emerge since the passage of the Telecom Act of 1996,
and many of these service providers are still in the initial stages of building
their infrastructure and rolling out their services.  These telecommunications
service providers require substantial capital for the development, construction
and expansion of their networks and the introduction of their services.
Financing may not be available to emerging telecommunications service providers
on favorable terms, if at all.  The inability of our current or potential
emerging telecommunications service provider customers to acquire and keep
customers, to successfully raise needed funds, or to respond to any other trends
such as price reductions for their services or diminished demand for
telecommunications services generally, could adversely affect their operating
results or cause them to reduce their capital spending programs.  If our
customers are unable to raise sufficient capital or forced to defer or curtail
their capital spending programs, our sales to those telecommunication service
providers may be adversely affected, which could have a material adverse effect
on our business, financial condition and results of operations.  In addition,
many of the industries in which telecommunications service providers operate
have recently experienced consolidation.  The loss of one or more of our
telecommunications service provider customers, through industry consolidation or
otherwise, could reduce or eliminate our sales to such a customer and
consequently could have a material adverse effect on our business, financial
condition and results of operations.


     If DSL Technology and Copper Mountain's DSL Product Offerings Are Not
Accepted by Telecommunications Service Providers, Copper Mountain May Not Be
Able to Sustain or Grow Its Business

     Copper Mountain's future success is substantially dependent upon whether
DSL technology gains widespread market acceptance by telecommunications service
providers, of which there are a limited number, and end users of their services.
We have invested substantial resources in the development of DSL technology, and
all of our products are based on DSL technology. Telecommunications service
providers are continuously evaluating alternative high-speed data access
technologies and may, at any time, adopt technologies other than the DSL
technologies offered by Copper Mountain. Even if telecommunications service
providers adopt policies favoring full-scale implementation of DSL technology,
they may not choose to purchase our DSL product offerings. In addition, we have
limited ability to influence or control decisions made by telecommunications
service providers. In the event that the telecommunications service providers to
whom we market our products adopt technologies other than the DSL technologies
offered by Copper Mountain or choose not to purchase Copper Mountain's DSL
product offerings, we may not be able to sustain or grow our business.


     Unless Copper Mountain Is Able to Keep Pace With the Rapidly Changing
Product Requirements of Its Customers, It Will Not Be Able to Sustain or Grow
Its Business

                                       17
<PAGE>

     The telecommunications and data communications markets are characterized by
rapid technological advances, evolving industry standards, changes in end-user
requirements, frequent new product introductions and evolving offerings by
telecommunications service providers.  We believe our future success will
depend, in part, on our ability to anticipate or adapt to such changes and to
offer, on a timely basis, hardware and software products which meet customer
demands.  Our inability to develop on a timely basis new products or
enhancements to existing products, or the failure of such new products or
enhancements to achieve market acceptance, could materially adversely affect our
business, financial condition and results of operations.


     Copper Mountain's Product Cycles Tend to be Short and Copper Mountain May
Incur Substantial Non-Recoverable Expenses or Devote Significant Resources to
Sales That Do Not Occur When Anticipated

     In the rapidly changing technology environment in which we operate, product
cycles tend to be short. Therefore, the resources we devote to product sales and
marketing may not generate revenues for us and from time to time we may need to
write-off excess and obsolete inventory. In the past, we have experienced such
write-offs attributed to the obsolescence of certain printed circuit boards and
product sub-assemblies. If we incur substantial sales, marketing and inventory
expenses in the future that we are not able to recover, it could have a material
adverse effect on our business, financial condition and results of operations.


     Copper Mountain's Ability to Sustain or Grow Its Business May Be Harmed if
It Is Unable to Develop and Maintain Certain Strategic Relationships with Third
Parties to Market and Sell Copper Mountain's Products

     Copper Mountain's success will be substantially dependent upon its
strategic distribution partnerships, including its original equipment
manufacturer agreements with Lucent Technologies, Inc., 3Com Corporation, and
Marconi Communications, Inc. under which we have agreed to manufacture, and sell
our products to these distribution partners. The amount and timing of resources
which our strategic partners devote to our business is not within our control.
Our strategic partners may not perform their obligations as expected. In some
cases, agreements with our strategic partners are relatively new, and we cannot
be certain that we will be able to sustain the level of revenue generated thus
far under these strategic arrangements. If any of our strategic partners
breaches or terminates its agreement or fails to perform its obligations under
its agreement, we may not be able to sustain or grow our business. In the event
that these relationships are terminated, we may not be able to continue to
maintain or develop strategic relationships or to replace strategic partners. In
addition, any strategic agreements we enter into in the future may not be
successful.

     In June 1999, Lucent completed the acquisition of Ascend Communications,
Inc., a competitor of ours, which offers a competing DSL solution. Subsequently,
in September 1999, Lucent announced a new DSL product based on technology
acquired from Ascend. As a result, Lucent may seek to reduce the marketing
and/or sales of our products in favor of their own competitive products. We
expect that the availability to Lucent of these alternative products will expose
Copper Mountain to increased competition from Lucent. Because of this
competition, we expect sales to Lucent, both in terms of dollars and as a
percent of sales, will decline over time. In addition, our other customers may
elect to purchase alternative products from Lucent and reduce their future
purchases of Copper Mountain products.


     Intense Competition in the Market for Telecommunications Equipment Could
Prevent Copper Mountain From Increasing or Sustaining Revenue and Prevent Copper
Mountain From Sustaining Annual Profitability

     The market for telecommunications equipment is highly competitive. We
compete directly with the following companies: Nokia Corporation, Alcatel S.A,
Cisco Systems, Inc., Lucent Technologies, Inc., and Paradyne Corporation, among
others. If we are unable to compete effectively in the market for DSL

                                       18
<PAGE>

telecommunications equipment, our revenue levels and future profitability could
be materially adversely affected. Many of our current and potential competitors
have significantly greater selling and marketing, technical, manufacturing,
financial, and other resources, including vendor-sponsored lease financing
programs. Moreover, our competitors may foresee the course of market
developments more accurately than we do and could in the future develop new
technologies that compete with our products or even render our products
obsolete. Although we believe we presently have certain technological and other
advantages over our competitors, realizing and maintaining such advantages will
require a continued high level of investment in research and development,
marketing and customer service and support. Due to the rapidly evolving markets
in which we compete, additional competitors with significant market presence and
financial resources, including other large telecommunications equipment
manufacturers, may enter those markets, thereby further intensifying
competition. We may not have sufficient resources to continue to make the
investments or achieve the technological advances necessary to compete
successfully with existing competitors or new competitors. Also, to the extent
we introduce new product offerings intended to capitalize on the anticipated
trend toward broad deployment of DSL services, including DSL services targeted
at residential subscribers seeking high-speed access to public communications
networks, we will encounter new competitors such as coaxial cable and wireless
equipment vendors. Even if we are successful in competing in the business DSL
market, we may not be able to compete successfully in the market for residential
subscribers.


     Future Consolidation in the Telecommunications Equipment Industry May
Increase Competition That Could Harm Copper Mountain's Business

     The markets in which Copper Mountain competes are characterized by
increasing consolidation both within the data communications sector and by
companies combining or acquiring data communications assets and assets for
delivering voice-related services. We cannot predict with certainty how industry
consolidation will affect our competitors. We may not be able to compete
successfully in an increasingly consolidated industry. Increased competition and
consolidation in our industry, including the future effects of Lucent's
acquisition of Ascend, could require that we reduce the prices of our products
and result in our loss of market share, which would materially adversely affect
our business, financial condition and results of operations. Additionally,
because we are now, and may in the future be, dependent on certain strategic
relationships with third parties in our industry, any additional consolidation
involving these parties could reduce the demand for our products and otherwise
harm our business prospects.


     Copper Mountain May Experience Difficulties in the Introduction of New
Products That Could Result in Copper Mountain Having to Incur Significant
Unexpected Expenses or Delay the Launch of New Products

     Copper Mountain intends to continue to invest in product and technology
development.  The development of new or enhanced products is a complex and
uncertain process requiring the accurate anticipation of technological and
market trends.  We may experience design, manufacturing, marketing and other
difficulties that could delay or prevent our development, introduction or
marketing of new products and enhancements.  The introduction of new or enhanced
products also requires that we manage the transition from older products in
order to minimize disruption in customer ordering patterns and ensure that
adequate supplies of new products can be delivered to meet anticipated customer
demand.  In the future, we expect to develop certain new products, such as new
DSL Concentrators, line cards for different DSL variants and new types of
customer premise equipment.  We may not successfully develop, introduce or
manage the transition of these new products.  Furthermore, products such as
those we currently offer may contain undetected or unresolved errors when they
are first introduced or as new versions are released.  Despite testing, errors
may be found in new products or upgrades after commencement of commercial
shipments.  These errors could result in:

     .  delays in or loss of market acceptance and sales;

     .  diversion of development resources;

                                       19
<PAGE>

     .  injury to our reputation; and

     .  increased service and warranty costs.

Any of these could materially adversely affect our business, financial condition
and results of operations.


     Copper Mountain Is Dependent on Widespread Market Acceptance of Its
Products

     Widespread market acceptance of Copper Mountain's products is critical to
its future success. Factors that may affect the market acceptance of our
products include market acceptance of DSL technology in particular, the
performance, price and total cost of ownership of our products, the availability
and price of competing products and technologies and the success and development
of our resellers, original equipment manufacturers and field sales channels.
Many of these factors are beyond our control. The introduction of new and
enhanced products may cause certain customers to defer or return orders for
existing products. Although we maintain reserves against such returns, such
reserves may not be adequate. We cannot be certain that we will not experience
delays in product development in the future. Failure of our existing or future
products to maintain and achieve meaningful levels of market acceptance would
materially adversely affect our business, financial condition and results of
operations.


     Because Substantially All of Copper Mountain's Revenue is Derived From
Sales of a Small Number of Products, Its Future Operating Results Will Be
Dependent on Sales of These Products

     Copper Mountain currently derives substantially all of its revenues from
its product family of DSL solutions and expects that this concentration will
continue in the foreseeable future. The market may not continue to demand our
current products, and we may not be successful in marketing any new or enhanced
products. Any reduction in the demand for our current products or our failure to
successfully develop or market and introduce new or enhanced products could
materially adversely affect our operating results and cause the price of our
common stock to decline. Factors that could affect sales of our current or new
or enhanced products include:

     .  the demand for DSL solutions;

     .  our successful development, introduction and market acceptance of new
        and enhanced products that address customer requirements;

     .  product introductions or announcements by our competitors;

     .  price competition in our industry and between DSL and competing
        technologies; and

     .  technological change.


     Copper Mountain's Limited Ability to Protect Its Intellectual Property May
Adversely Affect Its Ability to Compete

     Copper Mountain's success and ability to compete is dependent in part upon
its proprietary technology. Any infringement of our proprietary rights could
result in significant litigation costs, and any failure to adequately protect
our proprietary rights could result in our competitors offering similar
products, potentially resulting in loss of a competitive advantage and decreased
revenues. We rely on a combination of copyright, trademark and trade secret
laws, as well as confidentiality agreements and licensing arrangements, to
establish and protect our proprietary rights. Despite our efforts to protect our
proprietary rights, existing copyright, trademark and trade secret laws afford
only limited protection. In addition, the laws of certain foreign countries do
not protect our proprietary rights to the same extent as do the laws of the
United States. Attempts may be made to copy or reverse engineer aspects of our
products or to obtain and use information that we regard as proprietary.
Accordingly, we may not be able to protect our

                                       20
<PAGE>

proprietary rights against unauthorized third-party copying or use. Furthermore,
policing the unauthorized use of our products is difficult. Litigation may be
necessary in the future to enforce our intellectual property rights, to protect
our trade secrets or to determine the validity and scope of the proprietary
rights of others. Such litigation could result in substantial costs and
diversion of resources and could have a material adverse effect on our future
operating results.


     Claims Against Copper Mountain Alleging Its Infringement of a Third Party's
Intellectual Property Could Result in Significant Expense to Copper Mountain and
Result in Its Loss of Significant Rights

     The telecommunications industry is characterized by the existence of a
large number of patents and frequent litigation based on allegations of patent
infringement. From time to time, third parties may assert patent, copyright,
trademark and other intellectual property rights to technologies that are
important to our business. Any claims asserting that our products infringe or
may infringe proprietary rights of third parties, if determined adversely to us,
could have a material adverse effect on our business, financial condition or
results of operations. In addition, in our agreements, we agree to indemnify our
customers for any expenses or liabilities resulting from claimed infringements
of patents, trademarks or copyrights of third parties. As the number of entrants
in our market increases and the functionality of our products is enhanced and
overlaps with the products of other companies, we may become subject to claims
of infringement or misappropriation of the intellectual property rights of
others. Any claims, with or without merit, could be time-consuming, result in
costly litigation, divert the efforts of our technical and management personnel,
cause product shipment delays or require us to enter into royalty or licensing
agreements, any of which could have a material adverse effect upon our operating
results. Such royalty or licensing agreements, if required, may not be available
on terms acceptable to us, if at all. Legal action claiming patent infringement
may be commenced against us. We cannot assure you that we would prevail in such
litigation given the complex technical issues and inherent uncertainties in
patent litigation. In the event a claim against us was successful and we could
not obtain a license to the relevant technology on acceptable terms or license a
substitute technology or redesign our products to avoid infringement, our
business, financial condition and results of operations would be materially
adversely affected.


     If Copper Mountain Loses Key Personnel It May Not Be Able to Successfully
Operate Its Business

     Copper Mountain's success depends to a significant degree upon the
continued contributions of the principal members of its sales, engineering and
management personnel, many of whom perform important management functions and
would be difficult to replace. Specifically, we believe that our future success
is highly dependent on our senior management. Except for agreements with our
President and Chief Executive Officer, General Manager of our Public Network
business unit, and Vice President of Engineering, we do not have employment
contracts with our key personnel. In any event, employment contracts would not
prevent key personnel from terminating their employment with Copper Mountain.
The loss of the services of any key personnel, particularly senior management
and engineers, could materially adversely affect our business, financial
condition and results of operations.


     If Copper Mountain is Unable to Retain and Hire Additional Qualified
Personnel As Necessary, It May Not Be Able to Successfully Achieve Its
Objectives

     Copper Mountain has experienced growth in revenues and expansion of its
operations which have placed significant demands on its management, engineering
staff and facilities. We have recently hired additional engineering, sales,
marketing, customer support and administrative personnel. Continued growth and
expansion of our product lines will also require us to hire more engineering,
sales and administrative personnel. We may not be able to attract and retain the
necessary personnel to accomplish our business objectives and we may experience
constraints that will adversely affect our ability to satisfy customer demand in
a timely fashion or to support our customers and operations. We have at times
experienced, and continue to experience, difficulty in recruiting qualified
personnel. Recruiting qualified personnel is an intensely competitive and time-
consuming process.

                                       21
<PAGE>

     In addition, companies in the telecommunications industry whose employees
accept positions with competitors frequently claim that such competitors have
engaged in unfair hiring practices. We may receive notice of such claims as we
seek to hire qualified personnel and such notices may result in material
litigation. We could incur substantial costs in defending ourselves against any
such litigation, regardless of the merits or outcome of such litigation.


     Failure to Manage the Growth of Copper Mountain's Operations Will Adversely
Affect Its Business

     Copper Mountain has rapidly and significantly expanded its operations and
anticipates that further significant expansion will be required to address
potential growth in its client base and market opportunities if it is successful
in implementing its business strategy. We may not be able to implement
management information and control systems in an efficient and timely manner,
and our current or planned personnel, systems, procedures and controls may not
be adequate to support our future operations. If we are unable to manage growth
effectively, our business, financial condition and results of operations will be
materially adversely affected. During the first nine months of 2000, we have
increased the number of employees from 240 to 447. This expansion is placing a
significant strain on our managerial and operational resources. We expect to add
additional key personnel in the near future, including direct sales and
marketing personnel. To manage the expected growth of our operations and
personnel, we will be required to:

     .  improve existing and implement new operational, financial and management
        controls, reporting systems and procedures;

     .  install new management information and telecommunications systems; and

     .  train, motivate and manage our sales and marketing, engineering,
        technical and customer support employees.

     .  expand our physical infrastructure and facilities to accommodate growth
        in our headcount.

     As of September 30, 2000 we operated our business from facilities in Palo
Alto, California, Fremont, California and San Diego, California.  We face
challenges related to effectively and efficiently coordinating our operations
between these facilities.  If we are unsuccessful in meeting these challenges,
our business and operating results may be adversely affected.


     Copper Mountain's Dependence on Sole and Single Source Suppliers Exposes It
to Supply Interruption

     Although Copper Mountain generally uses standard parts and components for
its products, certain key components are purchased from sole or single source
vendors for which alternative sources are not currently available. The inability
to obtain sufficient quantities of these components may in the future result in
delays or reductions in product shipments which could materially adversely
affect our business, financial condition and results of operations. We presently
purchase three key components from vendors for which there are currently no
substitutes: two semiconductor chips, and a system control module. We are
evaluating alternate source vendors for each of these key components, but any
alternate vendors may not meet our quality standards for component vendors. In
the event of a reduction or interruption of supply of any such components, as
much as nine months could be required before we would begin receiving adequate
supplies from alternative suppliers, if any. It is possible that a source may
not be available for us or be in a position to satisfy our production
requirements at acceptable prices and on a timely basis, if at all.

     In addition, the manufacture of certain of these single or sole source
components is extremely complex, and our reliance on the suppliers of these
components exposes us to potential production difficulties and quality
variations, which could negatively impact cost and timely delivery of our
products.

                                       22
<PAGE>

Any significant interruption in the supply, or degradation in the quality, of
any component could have a material adverse effect on our business, financial
condition and results of operations.


     Copper Mountain's Dependence on Independent Manufacturers Could Result in
Product Delivery Delays

     Copper Mountain currently uses a small number of independent manufacturers
to provide certain printed circuit boards, chassis and subassemblies and, in
certain cases, to complete final assembly and testing of our products. Our
reliance on independent manufacturers involves a number of risks, including the
absence of adequate capacity, the unavailability of or interruptions in access
to certain process technologies and reduced control over delivery schedules,
manufacturing yields and costs. We have entered into a formal manufacturing
agreement with Flextronics International, Ltd. located in Fremont, California.
Flextronics is our main source of independent manufacturing. If our current
manufacturers, including Flextronics, are unable or unwilling to continue
manufacturing our components in required volumes, it could take up to eight
months for an alternative manufacturer to supply the needed components in
sufficient volumes. It is possible that a source may not be available to us when
needed or be in a position to satisfy our production requirements at acceptable
prices and on a timely basis, if at all. Any significant interruption in supply
would result in the allocation of products to customers, which in turn could
have a material adverse effect on our business, financial condition and results
of operations. Moreover, since all of the manufacturing by Flextronics and all
of our final assembly and tests are each performed in one location, any fire or
other disaster at either Flextronics manufacturing facility or at our assembly
facility would have a material adverse effect on our business, financial
condition and results of operations.


     Intense Demand Within the Telecommunications Industry for Parts and
Components May Create Allocations or Shortages Which May Expose Copper Mountain
to Supply Interruption

     From time to time, the demand in the telecommunications industry for parts
and components, including semiconductors, programmable devices and printed
circuit boards can be intense. During these periods manufacturers and suppliers
who provide such components to us experience supply shortages which may in turn
affect their ability to meet our production demands. While we seek to enter into
contracts with our suppliers which guarantee adequate supplies of components for
the manufacturing of our products, we cannot be certain that suppliers will
always be able to adequately meet our demands. To date, we have not experienced
any shortages of components or parts which have impacted our ability to meet the
shipment requirements of our customers. However, in the event that we receive
allocations of components from our suppliers or experience outright interruption
in the supply of components we could experience an inability to ship or deliver
our products to our customers in a timely fashion. Any significant allocation of
or interruption in the supply of any component could have a material adverse
effect on our business, financial condition and results of operations.


     Copper Mountain's Customers May Demand Preferential Terms or Delay Copper
Mountain's Sales Cycle, Which May Result in Operating Losses for Copper Mountain

     Copper Mountain's customers tend to be larger than Copper Mountain and are
able to exert a high degree of influence over Copper Mountain.  They have
sufficient bargaining power to demand low prices and other terms and conditions
that may materially adversely affect our business, financial condition and
results of operations.  In addition, prior to selling our products to such
customers, we must typically undergo lengthy product approval processes, often
taking up to one year.  Accordingly, we are continually submitting successive
versions of our products as well as new products to our customers for approval.
The length of the approval process can vary and is affected by a number of
factors, including customer priorities, customer budgets and regulatory issues
affecting telecommunication service providers.  Delays in the product approval
process could materially adversely affect our business, financial condition and
results of operations.  While we have been successful in the past in obtaining
product approvals from our

                                       23
<PAGE>

customers, such approvals and the ensuing sales of such products may not
continue to occur. Delays can also be caused by late deliveries by other
vendors, changes in implementation priorities and slower than anticipated growth
in demand for the services that our products support. A delay in, or
cancellation of, the sale of our products could result in operating losses and
cause our results of operations to vary significantly from quarter to quarter.


     Changes to Regulations Affecting the Telecommunications Industry Could
Reduce Demand for Copper Mountain's Products or Adversely Affect Its Results of
Operations

     Any changes to legal requirements relating to the telecommunications
industry, including the adoption of new regulations by federal or state
regulatory authorities under current laws or any legal challenges to existing
laws or regulations relating to the telecommunications industry could have a
material adverse effect upon the market for Copper Mountain's products.
Moreover, our distributors or telecommunications service provider customers may
require, or we may otherwise deem it necessary or advisable, that we modify our
products to address actual or anticipated changes in the regulatory environment.
Our inability to modify our products or address any regulatory changes could
have a material adverse effect on our business, financial condition or results
of operations.


     Copper Mountain's Failure to Comply with Regulations and Evolving Industry
Standards Could Delay Its Introduction of New Products

     The market for Copper Mountain's products is characterized by the need to
meet a significant number of communications regulations and standards, some of
which are evolving as new technologies are deployed. In order to meet the
requirements of our customers, our products may be required to comply with
various regulations including those promulgated by the Federal Communications
Commission, or FCC, and standards established by Underwriters Laboratories and
Bell Communications Research. Failure of our products to comply, or delays in
compliance, with the various existing and evolving industry regulations and
standards could delay the introduction of our products. Moreover, enactment by
federal, state or foreign governments of new laws or regulations, changes in the
interpretation of existing laws or regulations or a reversal of the trend toward
deregulation in the telecommunications industry could have a material adverse
effect on our customers, and thereby materially adversely affect our business,
financial condition and results of operations.


     Copper Mountain May Not Be Able to Obtain Additional Capital to Fund Its
Operations When Needed

Our capital requirements depend on several factors, including the rate of market
acceptance of our products, the rate of growth in our client base, the growth of
our product lines, our ability to manage our inventory and accounts receivable
and other factors.  If capital requirements vary materially from those currently
planned, we may require additional financing sooner than anticipated.  If
additional funds are raised through the issuance of equity securities, the
percentage ownership of our stockholders will be reduced, stockholders may
experience additional dilution, or such equity securities may have rights,
preferences or privileges senior to those of the holders of our common stock.
If additional funds are raised through the issuance of debt securities, such
securities would have rights, preferences and privileges senior to holders of
common stock and the terms and conditions relating to such debt could impose
restrictions on our operations.  Additional financing may not be available when
needed on terms and conditions favorable to us or at all.  If adequate funds are
not available or are not available on acceptable terms and conditions, we may be
unable to develop or enhance our services, take advantage of future
opportunities or respond to competitive pressures, which could materially
adversely affect our business, financial condition or results of operations.


     If Copper Mountain's Products Contain Defects, Copper Mountain May Be
Subject to Significant Liability Claims from Its Customers and the End-Users of
Its Products and Incur Significant Unexpected Expenses and Lost Sales

                                       24
<PAGE>

     Copper Mountain's products have in the past contained, and may in the
future contain, undetected or unresolved errors when first introduced or as new
versions are released. Despite extensive testing, errors, defects or failures
may be found in our current or future products or enhancements after
commencement of commercial shipments. If this happens, we may experience delay
in or loss of market acceptance and sales, product returns, diversion of
development resources, injury to our reputation or increased service and
warranty costs, any of which could have a material adverse effect on our
business, financial condition and results of operations. Moreover, because our
products are designed to provide critical communications services, we may
receive significant liability claims. Our agreements with customers typically
contain provisions intended to limit our exposure to liability claims. These
limitations may not, however, preclude all potential claims resulting from a
defect in one of our products. Although we maintain product liability insurance
covering certain damages arising from implementation and use of our products,
our insurance may not cover any claims sought against us. Liability claims could
require us to spend significant time and money in litigation or to pay
significant damages. As a result, any such claims, whether or not successful
could seriously damage our reputation and our business.


     Copper Mountain May Engage in Future Acquisitions That Dilute Its
Stockholders, Cause It to Incur Debt and Assume Contingent Liabilities

     As part of Copper Mountain's business strategy, we expect to review
acquisition prospects that would complement our current product offerings,
augment our market coverage or enhance our technical capabilities, or that may
otherwise offer growth opportunities.  We may acquire businesses, products or
technologies in the future.  In the event of such future acquisitions, we could:

     .  issue equity securities which would dilute current stockholders'
        percentage ownership;

     .  incur substantial debt; or

     .  assume contingent liabilities.

     Such actions by us could materially adversely affect our results of
operations and/or the price of our common stock. Acquisitions also entail
numerous risks, including:

     .  difficulties in assimilating acquired operations, technologies or
        products;

     .  unanticipated costs associated with the acquisition could materially
        adversely affect our results of operations;

     .  diversion of management's attention from other business concerns;

     .  adverse effects on existing business relationships with suppliers and
        customers;

     .  risks of entering markets in which we have no or limited prior
        experience; and

     .  potential loss of key employees of acquired organizations.

     We may not be able to successfully integrate any businesses, products,
technologies or personnel that we have acquired or might acquire in the future,
and our failure to do so could have a material adverse effect on our business,
financial condition and results of operations.

     In February 2000, we acquired OnPREM Networks Corporation.  We operate in a
sector of the DSL equipment industry that is considerably different from the
sector for which OnPREM has developed its products. It may turn out that there
are no advantages or "synergies" to adding OnPREM's products to our product
line. Moreover, there is no assurance that OnPREM's operations can be
successfully integrated into our operations or that all of the benefits expected
from the acquisition of OnPREM will be realized.

                                       25
<PAGE>

Furthermore, there can be no assurance that the operations, management and
personnel of the two companies will be compatible or that we or OnPREM will not
experience the loss of key personnel following the merger.


We Plan to Expand Our Operations into International Markets.  Our Failure to
Effectively Manage Our International Operations Could Harm Our Business.

     We believe that international market opportunities for our products may be
significant and we have begun to enter markets outside the United States in
2000.  Entering new international markets may require significant management
attention and expenditures and could adversely affect our operating margins and
earnings.  In order to commence and expand our international operations, we will
need to hire additional personnel and develop relationships with potential
international customers.  To the extent that we are unable to do so on a timely
basis, our growth in international markets would be limited, and our business
could be harmed.

     We expect that our international business operations will be subject to a
number of material risks, including, but not limited to:

     .  difficulties in building and managing foreign operations;

     .  difficulties in enforcing agreements and collection receivables through
        foreign legal systems and addressing other legal issues;

     .  longer payment cycles;

     .  taxation issues;

     .  differences in international telecommunications standards and regulatory
        agencies;

     .  fluctuations in the value of foreign currencies; and

     .  unexpected domestic and international regulatory, economic or political
        changes.


     Copper Mountain's stock price has been and may continue to be extremely
volatile

     The trading price of our common stock has been and is likely to continue to
be extremely volatile.  Our stock price could be subject to wide fluctuations in
response to a variety of factors, including the following:

     .  actual or anticipated variations in quarterly operating results;

     .  announcements of technological innovations;

     .  new products or services offered by us or our competitors;

     .  changes in financial estimates by securities analysts;

     .  announcements of significant acquisitions, strategic partnerships, joint
        ventures or capital commitments by us or our competitors;

     .  additions or departures of key personnel;

                                       26
<PAGE>

     .  announcements or loss of strategic relationships with third parties or
        telecommunications equipment providers by us or our competitors;

     .  sales of common stock; and

     .  other events or factors, many of which are beyond our control.

     In addition, the stock market in general, and the Nasdaq National Market
and technology companies in particular, have experienced extreme price and
volume fluctuations that have often been unrelated or disproportionate to the
operating performance of such companies. The trading prices of many technology
companies' stocks are at or near historical highs and these trading prices and
multiples are substantially above historical levels. These trading prices and
equity valuations may not be sustained. These broad market and industry factors
may materially adversely affect the market price of our common stock, regardless
of our actual operating performance. In the past, following periods of
volatility in the market price of a company's securities, securities class-
action litigation has often been instituted against such companies. We have
recently become the target of such litigation, and several class action lawsuits
have been filed against us and certain of our officers alleging violation of
Federal securities laws related to declines in our stock price. Such litigation
could result in substantial costs and a diversion of management's attention and
resources, which could materially adversely affect our business, financial
condition and results of operations.


     Substantial Future Sales of Copper Mountain's Common Stock in the Public
Market Could Cause Its Stock Price to Fall

     Sales of a large number of shares of Copper Mountain's common stock in the
public market or the perception that such sales could occur could cause the
market price of its common stock to drop. As of September 30, 2000, we had 51.6
million shares of common stock outstanding. We filed three registration
statements on Form S-8 with the Securities and Exchange Commission covering the
16.4 million shares of common stock reserved for issuance under our 1996 Equity
Incentive Plan, 1999 Non-Employee Directors' Stock Option Plan and 1999 Employee
Stock Purchase Plan, the OnPREM 1998 Stock Option Plan, the 2000 Nonstatutory
Stock Option Plan and for options issued outside such plans. As of September 30,
2000, approximately 2.2 million shares are currently subject to exercisable
options. Sales of a large number of shares could have an adverse effect on the
market price for our common stock.


     Certain Provisions in Copper Mountain's Corporate Charter and Bylaws May
Discourage Take-Over Attempts and Thus Depress the Market Price of Our Stock

     Provisions in Copper Mountain's certificate of incorporation, as amended
and restated, may have the effect of delaying or preventing a change of control
or changes in its management. These provisions include:

     .  the right of the board of directors to elect a director to fill a
        vacancy created by the expansion of the board of directors;

     .  the ability of the board of directors to alter our bylaws without
        getting stockholder approval;

     .  the ability of the board of directors to issue, without stockholder
        approval, up to 10,000,000 shares of preferred stock with terms set by
        the board of directors; and

     .  the requirement that at least 10% of the outstanding shares are needed
        to call a special meeting of stockholders.

     Each of these provisions could discourage potential take-over attempts and
could adversely affect the market price of our common stock.

                                       27
<PAGE>

Item 3.  Quantitative and Qualitative Disclosures About Market Risk

     We are exposed to changes in interest rates from our long-term debt
arrangements and our investments in certain held-to-maturity securities.  Under
our current policies, we do not use interest rate derivative instruments to
manage exposure to interest rate changes.  A hypothetical 100 basis point
adverse move in interest rates along the entire interest rate yield curve would
not materially affect the fair value of our interest sensitive financial
instruments at September 30, 2000.

                          PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

     On October 20, 2000, plaintiff Ariel Hernandez, on behalf of herself and
purportedly on behalf of a class of Company stockholders, filed a complaint in
the United States District Court for the Northern District of California against
the Company and two officers of the Company, alleging violations of the federal
securities laws related to declines in the Company's stock price.  Subsequently,
at least ten similar lawsuits were filed in the same court against the Company
and the same two officers.  The complaints allege securities fraud in connection
with various statements and alleged omissions to the public and to the
securities markets.  It is anticipated that these complaints, and any similar
complaints that may be filed arising out of declines in the price of the
Company's stock, will be consolidated into a single action.  The Company
anticipates filing a motion to dismiss all of these complaints.  No discovery
has taken place.

Item 6.  Exhibits and Reports on Form 8-K

(a)  Exhibit 27.1 - Financial Data Schedule

(b)  Reports on Form 8-K during the three months ended September 30, 2000.

     None.

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<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                       Copper Mountain Networks, Inc.


Date: November 13, 2000                /s/  Richard S. Gilbert
                                       -----------------------------------------
                                            Richard S. Gilbert
                                            President
                                            Chief Executive Officer


                                       /s/  John A. Creelman
                                       -----------------------------------------
                                            John A. Creelman
                                            Vice President of Finance
                                            Chief Financial Officer
                                            Secretary

                                       29