Exhibit 10.18

                            EMPLOYMENT AGREEMENT



                  EMPLOYMENT AGREEMENT made and entered into effective as
of December 29, 2000 by and between The Nasdaq Stock Market, Inc. (the
"Company") and Patrick Campbell (the "Executive").

                  WHEREAS, the Company desires to continue to employ the
Executive and to enter into an agreement embodying the terms of such
employment and considers it essential to its best interests and the best
interests of its stockholders to foster the continued employment of the
Executive by the Company during the term of the Agreement;

                  WHEREAS, the Executive desires to accept such employment
and enter into such an agreement; and

                  WHEREAS, the Executive is willing to accept employment on
the terms hereinafter set forth in this agreement (the "Agreement").

                  NOW, THEREFORE, in consideration of the premises and
mutual covenants herein and for other good and valuable consideration, the
parties hereby agree as follows:

                  1. Term of Employment. Subject to Section 9, the term of
the Executive's employment under this Agreement shall commence on December
30, 2000 (the "Effective Date") and shall end on December 31, 2003;
provided however, that such term shall be automatically extend for
additional one year (1) year periods unless, not later than six (6) months
prior to the expiration of the initial period (or any extension thereof
pursuant to this Section 1), either party hereto shall provide written
notice of its or his desire not to extend the term hereof to the other
party hereto (the initial period together with each one-year extension
shall be referred to hereinafter as the "Employment Term").

                  2.  Position.

                  (a) The Executive shall serve as the President Nasdaq
U.S. Markets. In such position, the Executive shall have such duties and
authority as shall be determined from time to time by the Board of
Directors of the Company (the "Board") or the Chief Executive Officer (the
"CEO") of the Company or it or his designee. During the Employment Term,
the Executive shall devote his full time and best efforts to his duties
hereunder; provided however, that nothing in this Agreement shall preclude
the Executive from (i) engaging in personal activities involving
charitable, community, educational, religious or similar organizations,
(ii) managing his personal investments and affairs to the extent that such
activities are not in any manner inconsistent with or in conflict with the
performance of the Executive's duties hereunder and (iii) continuing to
serve as a member of the board of directors or board of advisors of the
entities set out on Schedule A annexed hereto. Pursuant to the Company's
Code of Conduct, the Executive shall be required to: (i) disclose to the
Audit Committee the names of the board of directors on which he currently
serves and (ii) obtain prior approval from the Audit Committee for service
as a new director of any publicly traded company. The Executive agrees to
accept the final Audit Committee decision on the suitability of all present
and future directorships as binding.

                  3. Base Salary. During the Employment Term, the Company
shall pay the Executive annual base salary (the "Base Salary") at the
annual rate no less than the rate of base salary in effect as of the
Effective Date. Base Salary shall be payable in regular installments in
accordance with the Company's usual payroll practices. The Management
Compensation Committee of the Board (the "Compensation Committee") shall
review Base Salary for the purpose of increasing it in accordance with its
normal review procedures.

                  4. Incentive Compensation/Bonus. With respect to each
calendar year during the Employment Term the Company shall pay to the
Executive such incentive compensation (hereinafter the "Incentive
Compensation") as the Compensation Committee may award in its discretion,
with a guarantee of 100% of Base Salary determined as of the December 31st
of the preceding year for each of the 2001, 2002 and 2003 calendar years.
Incentive Compensation shall be pro rated for any employment during a
calendar year of less than twelve (12) months (determined by the ratio that
the number days during which the Executive was employed during a calendar
year bears to 365). Incentive Compensation for each calendar year shall be
paid at the same time as the Company pays Incentive Compensation awards to
other executives, but in no event later than the March 1st following the
calendar year with respect to which the Incentive Compensation relates.

                  5.       Employee Benefits.

                  (a) Employee Benefits-Generally. During the Employment
Term, the Executive shall be provided with benefits on the same basis as
benefits are generally made available to other senior executives of the
Company, including without limitation, medical, dental, vision, disability,
life insurance and pension benefits. The Executive shall be entitled to
four (4) weeks paid vacation.

                  (b) SERP Enhancements. The Executive shall be entitled to
continue to participate in the NASD Supplemental Executive Retirement Plan
(the "SERP"). Notwithstanding any term or condition contained in the SERP
to the contrary:

                      (i) Section 4.1 of the SERP shall be applied as if
the age and service requirements stated therein were age 55 and five (5)
years of service rather than age 55 and ten (10) years of service.
Accordingly, the Executive shall be 100% vested in his accrued SERP benefit
upon the later of his attainment of age 55 while employed and his
completion of five (5) years of service.

                      (ii) Section 4.1 of the SERP shall be applied as if
the age and service requirements stated therein were satisfied upon the
Executive's termination of employment prior to the end of the Employment
Term (x) on account of his death or Disability (as defined in Section 9(b)
hereof), (y) by the Company without Cause pursuant to Section 9(c) hereof,
or (z) by the Executive for Good Reason pursuant to Section 9(c) hereof.
Accordingly, under such circumstances the Executive shall be 100% vested in
his SERP benefit even if his employment terminates prior to his attaining
age 55 and having completed five (5) years of service with the Company.

                      (iii) The death benefit provided in Section 5.1 of
the SERP shall become payable if the Executive dies before his SERP benefit
commences, but after having satisfied the requirements of Section 4.1 of
the SERP as modified by Section 5(b)(i) or (ii) (and if the foregoing
conditions are satisfied, such death benefit will be payable even if the
Executive's death occurs after he has left employment with the Company with
vested SERP rights, but before the SERF benefit commences).

                      (iv) Section 4.3 of the SERP (relating to early
retirement) shall be applied as if the service requirement stated therein
were five (5) years of service rather than ten (10) years of service;
provided, that this special rule shall not permit the Executive's SERP
benefit to start earlier than age 55.

                      (v) The special provisions of this Section 5(b) shall
not accelerate the rate at which the SERP benefit accrues so that the
amount of the accrued SERP benefit shall be determined with reference to an
accrual over a period of 3,650 days as provided in Section 4.2(a) of the
SERP.

                  6. Equity. The Executive shall be granted pursuant to The
Nasdaq Stock Market, Inc. Equity Compensation Plan (the "Stock Plan") which
has been adopted by the Board and may from time to time be amended, options
to purchase shares of the Company's common stock in a number commensurate
with the Executive's title and responsibility (subject to applicable
adjustments pursuant to Section 4(b) of the Stock Plan), with a term of ten
(10) years from the date of grant and an option exercise price equal to
fair market value of the Company's common stock on the date of grant. Such
option shall be subject to all the terms and conditions of the Stock Plan,
and a stock option agreement to be entered into by and between the Company
and the Executive.

                  7.       Fringe Benefits.

                           (a) Business Expenses. During the Employment
Term, reasonable business expenses incurred by the Executive in the
performance of his duties hereunder shall be reimbursed by the Company in
accordance with the policy established by the Compensation Committee.
Accordingly, the Executive's expenses associated with business travel shall
be reimbursed by the Company in accordance with such policy, and where
appropriate the Executive's spouse shall be permitted to travel with the
Executive and the Executive shall be similarly reimbursed for the cost of
his spouse's travel.

                           (b) Transportation and Housing.

                               (i)  During the Employment Term, in accordance
with the directives of the Compensation Committee, the Executive shall be
provided with reasonable transportation for business purposes while in New
York City and/or Washington, D.C.

                               (ii) During the Employment Term, the Company
shall provide the Executive with either (A) financial assistance in
purchasing (or renting) a residence in the New York metropolitan area, (B)
the use of a corporate apartment in New York City or (C) a housing
allowance; provided, however, that with respect to each calendar year
during the Employment Term the provision of benefits described in this
Section 7(b)(ii) (the "Housing Program") shall not exceed 15% of the sum of
the Executive's Base Salary and Incentive Bonus with respect to such
calendar year. All such benefits provided under the Housing Program shall
be subject to the prior approval and consent of the Board or a Committee,
thereof.1

                           (c) Legal Fees. The Company shall pay or
reimburse the Executive for his reasonable legal fees and
expenses incurred in connection with the negotiation and execution of this
Agreement upon presentation by the Executive of written invoices or
receipts setting forth in reasonable detail the basis for such legal fees
and expenses.

                  8. Stay Pay. Subject to the Executive's employment with
the Company on August 9, 2002 (the "Stay Pay Date"), the Company shall pay
the Executive an additional bonus equal to two (2) times his Base Salary as
in effect on the Stay Pay Date (the "Stay Pay Bonus"); provided, however,
that the Executive's earlier death or Disability (as defined in Section
9(c) hereof) while employed or termination pursuant to Section 9(c) hereof
shall also be a Stay Pay Date. The Stay Pay Bonus shall be paid in a lump
sum within 30 business days following the Stay Pay Date. The Company and
the Executive may at the end of initial Employment Term without regard to
any extension thereof pursuant to the last sentence of Section 1 hereof,
agree to an additional stay payment in consideration of the renewal of the
Employment Term at such time.

                  9. Termination. Notwithstanding any other provision of
the Agreement:

                           (a) For Cause by the Company. The Employment
Term and the Executive's employment hereunder may be terminated by the
Company for "Cause." For purposes of the Agreement, "Cause" shall mean (i)
the Executive's conviction of, or pleading nolo contendere to, a felony,
(ii) the Executive's conviction of, or pleading nolo contendere to, any
crime, whether a felony or misdemeanor, involving the purchase or sale of
any security, mai1 or wire fraud, theft, embezzlement, moral turpitude or
Company property; (iii) the Executive's gross neglect of his duties
hereunder or (iv) the Executive's willful misconduct in connection with the
performance of his duties hereunder or any other material breach by the
Executive of this Agreement; provided, however that the Executive shall not
be deemed to have been terminated for Cause unless (i) reasonable notice
has been delivered to him setting forth the reasons for the Company's
intention to terminate him for Cause and (ii) a period of thirty (30) days
has elapsed since delivery of such notice. If the Executive is terminated
for Cause, he shall be entitled to receive his Base Salary through the date
of termination. Upon termination of the Executive's employment for Cause
pursuant to this Section 9(a), the Executive shall have no further rights
to any compensation (including any Incentive Compensation or Stay Pay
Bonus) or any other benefits under the Agreement. All other benefits, if
any, due the Executive following the Executive's termination of employment
pursuant to this Section 9(a) shall be determined in accordance with the
plans, policies and practices of the Company.


-------- 1
The actual form of housing assistance will be worked
out with outside advisers to determine an appropriate package for the
Executive consistent with corporate practice in New York City and the
Executive's individual needs.


                           (b) Disability or Death. The Employment Term and
the Executive's employment hereunder shall terminate upon his death and the
Company may terminate the Executive if he becomes physically or mentally
incapacitated and is therefore unable for a period of 45 consecutive
working days or 75 working days in a six (6) month period to perform his
duties (such incapacity is hereinafter referred to as "Disability"). Any
question as to the existence of the Disability of the Executive as to which
the Executive and the Company cannot agree shall be determined in writing
by a qualified independent physician mutually acceptable to the Executive
and the Company. If the Executive and the Company cannot agree as to a
qualified independent physician, each shall appoint such a physician and
those two physicians shall select a third who shall make such determination
in writing. The determination of Disability made in writing to the Company
and the Executive shall be final and conclusive for all purposes of this
Agreement.

                  Upon termination of the Executive's employment hereunder
for either Disability or death, the Executive or his estate (as the case
may be) shall be entitled to receive (i) any accrued but unpaid Base Salary
through the end of the month in which such termination occurs, (ii) all
unpaid Base Salary for the remainder of the Employment Term, (iii) all
unpaid Annual Incentive Compensation for the remainder of the Employment
Term, (iv) the Stay Pay Bonus provided by Section 8 hereof if not already
paid and (v) all other current cash obligation of the Company to the
Executive (e.g. unused vacation). All other benefits, if any, due the
Executive following termination pursuant to this Section 9(b) shall be
determined in accordance with the plans, policies and practices of the
Company; provided, however, that the Executive shall not participate in any
other severance plan, policy or program of the Company.

                           (c) Termination by the Executive for Good Reason
or by the Company without Cause. The Employment Term and the Executive's
employment hereunder may be terminated by the Executive for "Good Reason"
as defined below upon not less than thirty (30) days written notice to the
Company. For purposes of this Agreement "Good Reason" shall mean the
Company (i) reducing the Executive's position, duties, or authority, (ii)
failing to secure the agreement of any successor entity to the Company that
the Executive shall continue in this position without reduction in
position, duties or authority, (iii) committing any other material breach
of this Agreement which is not remedied by the Company (if capable of
remedy) within thirty (30) days after receiving notice thereof from the
Executive or (iv) the Company providing notice of nonrenewal of the
Employment Term in accordance with Section 1 hereof.

                  If the Executive's employment is terminated by the
Company without "Cause" (other than by reason of his Disability or death)
or the Executive terminates this Agreement for Good Reason, the Executive
shall be entitled to receive: (i) any accrued but unpaid Base Salary
through the date of such termination, (ii) the Stay Pay Bonus provided by
Section 8 hereof if not already paid, (iii) all other current cash
obligations of the Company to the Executive (e.g. unused vacation) and (iv)
a prorata portion of the Incentive Compensation due the Executive pursuant
to Section 4 and calculated in accordance with Section 4. In addition, the
Executive shall be entitled to receive his Base Salary and Incentive
Compensation through the later of (i) the balance of the Term or (ii)
twenty-four months from the date of such termination (the "Severance
Period"). Such severance shall be paid in a lump sum within thirty (30)
days following the termination date. The Company shall provide continued
health coverage at its expense for the Severance Period. All other
benefits, if any, due the Executive following termination pursuant to this
Section 9(c) shall be determined in accordance with the plans, policies and
practices of the Company; provided, however, that the Executive shall not
participate in any severance plan, policy or program of the Company.

                           (d) Termination by the Executive without Good
Reason. The Employment Term and the Executive's employment hereunder may be
terminated by the Executive for any reason upon 60 days notice to the
Company. Upon a termination by the Executive pursuant to this Section 9(d)
the Executive shall be entitled to his Base Salary through the date of such
termination. Upon termination of the Executive pursuant to this Section
9(d), the Executive shall have no further rights, other than those set
forth in this Section 9(d), to any compensation or any other benefits under
the Agreement. All other benefits, if any, due the Executive following
termination pursuant to this Section 9(d) shall be determined in accordance
with the plans, policies and practices of the Company; provided, however,
that the Executive shall not participate in any severance plan, policy or
program of the Company.

                           (e) Mitigation/Offset. Following the termination
of his employment under any of the above clauses of this Section 9, the
Executive shall have no obligation or duty to seek subsequent employment or
engagement as an employee (including self employment) or as a consultant or
otherwise mitigate the Company's obligations hereunder; nor shall the
payments provided by this Section 9 be reduced by the compensation earned
by the Executive, as an employee or consultant from such subsequent
employment or consultancy.

                           (f) Excise Tax Payments.

                               (i) Gross-Up Payment. If it shall be
determined that any payment or distribution of any type to or in respect of
the Executive, by the Company, or any other person, whether paid or payable
or distributed or distributable pursuant to the terms of the Agreement or
otherwise (the "Total Payments"), is or will be subject to the excise tax
imposed by Section 4999 of the Internal Code of 1986, as amended (the
"Code") or any interest or penalties with respect to such excise tax (such
excise tax, together with any such interest and penalties, are collectively
referred to as the "Excise Tax"), then the Executive shall be entitled to
receive an additional payment (a "Gross-Up Payment") in an amount such that
after payment by the Executive of all taxes (including any interest or
penalties imposed with respect to such taxes) imposed upon the Gross-Up
Payment, the Executive retains an amount of the Gross-Up Payment equal to
the Excise Tax imposed upon the Total Payments.

                               (ii) Determination by Accountant.

                                    (A) All computations and determinations
relevant to this Section 9(f) shall be made by a national accounting firm
selected by the Company from among the five (5) largest accounting firms in
the United States (the "Accounting Firm") which firm may be the Company's
accountants. Such determinations shall include whether any of the Total
Payments are "parachute payments" (within the meaning of Section 280G of
the Code). In making the initial determination hereunder as to whether a
Gross-Up Payment is required the Accounting Firm shall determine that no
Gross-Up Payment is required, if the Accounting Firm is able to conclude
that no "Change of Control" has occurred (within the meaning of Section
280G of the Code) on the basis of "substantial authority" (within the
meaning of Section 6230 of the Code) and shall provide opinions to that
effect to both the Company and the Executive. If the Accounting Firm
determines that a Gross-Up Payment is required, the Accounting Firm shall
provide its determination (the "Determination"), together with detailed
supporting calculations regarding the amount of any Gross-Up Payment and
any other relevant matter both to the Company and the Executive by no later
than ten (10) days following the Termination Date, if applicable, or such
earlier time as is requested by the Company or the Executive (if the
Executive reasonably believes that any of the Total Payments may be subject
to the Excise Tax). If the Accounting Firm determines that no Excise Tax is
payable by the Executive, it shall furnish the Executive and the Company
with a written statement that such Accounting Firm has concluded that no
Excise Tax is payable (including the reasons therefor) and that the
Executive has substantial authority not to report any Excise Tax on his
federal income tax return.

                                    (B) If a Gross-Up Payment is determined
to be payable, it shall be paid to the Executive within twenty (20) days
after the Determination (and all accompanying calculations and other
material supporting the Determination) is delivered to the Company by the
Accounting Firm. Any determination by the Accounting Firm shall be binding
upon the Company and the Executive, absent manifest error.

                                    (C) As a result of uncertainty in the
application of Section 4999 of the Code at the time of the initial
determination by the Accounting Firm hereunder, it is possible that
Gross-Up Payments not made by the Company should have been made
("Underpayment"), or that Gross-Up Payments will have been made by the
Company which should not have been made ("Overpayments"). In either such
event, the Accounting Firm shall determine the amount of the Underpayment
or Overpayment that has occurred. In the case of an Underpayment, the
amount of such Underpayment (together with any interest and penalties
payable by the Executive as a result of such Underpayment) shall be
promptly paid by the Company to or for the benefit of the Executive.

                                    (D) In the case of an Overpayment, the
Executive shall, at the direction and expense of the Company, take such
steps as are reasonably necessary (including the filing of returns and
claims for refund), follow reasonable instructions from, and procedures
established by, the Company, and otherwise reasonably cooperate with the
Company to correct such Overpayment, provided, however, that (i) the
Executive shall not in any event be obligated to return to the Company an
amount greater than the net after-tax portion of the Overpayment that he
has retained or has recovered as a refund from the applicable taxing
authorities and (ii) this provision shall be interpreted in a manner
consistent with the intent of Section 9(f)(i), which is to make the
Executive whole, on an after-tax basis, from the application of the Excise
Taxes, it being acknowledged and understood that the correction of an
Overpayment may result in the Executive repaying to the Company an amount
which is less than the Overpayment.

                                    (E) The Executive shall notify the
Company in writing of any claim by the Internal Revenue Service relating to
the possible application of the Excise Tax under Section 4999 of the Code
to any of the payments and amounts referred to herein and shall afford the
Company, at its expense, the opportunity to control the defense of such
claim.

                 10. Non-Competition/Confidentiality. (a) The Executive
acknowledges and recognizes the highly competitive nature of the businesses
of the Company and accordingly agrees as follows:

                           (a) During the Employment Term and for a period
of one (1) year following the earlier of (i) the expiration of the
Employment Term and (ii) the date the Executive ceases to be employed by
the Company (the "Restricted Period"), the Executive will not directly or
indirectly, (A) engage in any "Competitive Business" (as defined below) for
the Executive's own account, (B) enter the employ of, or render any
services to, any person engaged in a Competitive Business, (C) acquire a
financial interest in, or otherwise become actively involved with, any
person engaged in a Competitive Business, directly or indirectly, as an
individual, partner, shareholder, officer, director, principal, agent,
trustee or consultant, or (D) interfere with business relationships
(whether formed before or after the date of the Agreement) between the
Company and customers or suppliers of the Company. For purposes of this
Agreement Competitive Business shall mean (i) any national securities
exchange registered with the Securities and Exchange Commission, (ii)
Electronic Communications Network or (iii) any other entity that engages in
substantially the same business as the Company.

                           (b) Notwithstanding anything to the contrary in
the Agreement, the Executive may, directly or indirectly own, solely as an
investment, securities of any person engaged in the business of the Company
which are publicly traded on a national or regional stock exchange or on
the over-the-counter market if the Executive (A) is not a controlling
person of, or a member of a group which controls, such person and (B) does
not, directly or indirectly, own 5% or more of any class of securities of
such person.

                           (c) During the Restricted Period, the Executive
will not, directly or indirectly, solicit or encourage to cease to work
with the Company any consultant or employee then under contract or employed
by or with the Company.

                           (d) The Executive hereby agrees that he will
comply with the Company's general policies regarding confidentiality.
Without in any way limiting the foregoing sentence, the Executive further
agrees that he will not, at any time during or after the Employment Term,
make use of or divulge to any other person, firm or corporation any trade
or business secret, process, method or means, or any other confidential
information concerning the business or policies of the Company, which he
may have learned in connection with his employment. For purposes of this
Agreement, a "trade or business secret, process, method or means, or any
other confidential information" shall mean and include written information
treated as confidential or as a trade secret by the Company. The
Executive's obligation under this Section 10(d) shall not apply to any
information which (i) is known publicly; (ii) is in the public domain or
hereafter enters the public domain without the fault of the Executive;
(iii) is known to the Executive prior to his receipt of such information
from the Company, as evidenced by written records of the Executive or (iv)
is hereafter disclosed to the Executive by a third party not under an
obligation of confidence to the Company. The Executive agrees not to remove
from the premises of the Company, except as an employee of the Company in
pursuit of the business of the Company or except as specifically permitted
in writing by the Board, any document or other object containing or
reflecting any such confidential information. The Executive recognizes that
all such documents and objects, whether developed by him or by someone
else, will be the sole exclusive property of the Company. Except as
specifically authorized by the Board upon termination of his employment
hereunder, the Executive shall forthwith deliver to the Company all such
confidential information, including without limitation all lists of
customers, correspondence, accounts, records and any other documents
(whether or not electronically or digitally produced) or property made or
held by him or under his control in relation to the business or affairs of
the Company, and no copy of any such confidential information shall be
retained by him.

                           (e) It is expressly understood and agreed that
although the Executive and the Company consider the restrictions contained
in this Section 10 to be reasonable, if a final judicial determination is
made by a court of competent jurisdiction that the time or territory or any
other restriction contained in the Agreement is an unenforceable
restriction against the Executive, the provisions of the Agreement shall
not be rendered void but shall be deemed amended to apply as to such
maximum time and territory and to such maximum extent as such court may
judicially determine or indicate to be enforceable. Alternatively, if any
court of competent jurisdiction finds that any restriction contained in the
Agreement is unenforceable, and such restriction cannot be amended so as to
make it enforceable, such finding shall not affect the enforceability of
any of the other restrictions contained herein.

                  11. Nondisparagement. The Executive agrees (whether
during or after the Executive's employment with the Company) not to issue,
circulate, publish or utter any false or disparaging statements, remarks or
rumors about the Company or its shareholders unless giving truthful
testimony under subpoena.

                  12. Specific Performance. The Executive acknowledges and
agrees that the Company's remedies at law for a breach or threatened breach
of any of the provisions of Section 10 or Section 11 would be inadequate
and, in recognition of this fact, the Executive agrees that, in the event
of such a breach or threatened breach, in addition to any remedies at law,
the Company, without posting any bond, shall be entitled to obtain
equitable relief in the form of specific performance, temporary restraining
order, temporary or permanent injunction or any other equitable remedy
which may then be available.

                  13. Miscellaneous.

                           (a) Acceptance. The Executive hereby represents
that his performance and execution of the Agreement does not and
will not constitute a breach of any agreement or arrangement to which he is
a party or is otherwise bound, including, without limitation, any
noncompetition or employment agreement.

                           (b) Governing Law. The Agreement shall be
governed by and construed in accordance with the laws of the State of New
York without regard to conflict of law provisions.

                           (c) Entire Agreement/Amendments. The Agreement
contains the entire understanding of the parties with respect to the
employment of the Executive by the Company and any and all employment
agreement previously entered into shall be null and void. There are no
restrictions, agreements, promises, warranties, covenants or by and between
the Company and the Executive undertakings between the parties with respect
to the subject matter herein other than those expressly set forth herein.
The Agreement may not be altered, modified, or amended except by written
instrument signed by the parties hereto.

                           (d) No Waiver. The failure of a party to insist
upon strictadherence to any term of the Agreement on any
occasion shall not be considered a waiver of such party's rights or deprive
such party of the right thereafter to insist upon strict adherence to that
term or any other term of the Agreement.

                           (e) Severability. In the event that any one or
more of the provisions of the Agreement shall be or become invalid, illegal
or unenforceable in any respect, the validity, legality and enforceability
of the remaining provisions of the Agreement shall not be affected thereby.

                           (f) Successor/Assignment. The Agreement is
confidential and personal and neither of the parties hereto shall, without
the consent of the other, assign or transfer this Agreement or any rights
or obligations hereunder. Without limiting the foregoing, the Executive's
right to receive payments hereunder shall not be assignable or transferable
whether by pledge, creation of a security interest or otherwise, other than
a transfer by your will or by the laws of descent distribution. In the
event of any attempted assignment or transfer contrary to this paragraph,
the Company shall have no liability to pay the assignee or transferee any
amount so attempted to be assigned or transferred. The Agreement shall be
binding upon any successor of the Company, its assets, or its business,
subsidiaries, affiliates (whether direct or indirect, by purchase, merger,
consolidation or otherwise). In the event that any successor fails to agree
in writing to assume this Agreement prior to the effective date of such
event, then all entitlements in this Agreement cash or otherwise shall be
immediately payable in full by the Company at such time of event
notwithstanding any other provisions in this Agreement to the contrary.

                           (g) Notice. For the purpose of the Agreement,
notices and all other communications provided for in the Agreement shall be
in writing and shall be deemed to have been duly given when delivered or
mailed by United States registered mail, return receipt requested, postage
prepaid, addressed to the respective addresses set forth on the execution
page of the Agreement, provided that all notices to the Company shall be
directed to the attention of the Chief Executive Officer or to such other
address as either party may have furnished to the other in writing in
accordance herewith, except that notice of change of address shall be
effective only upon receipt.

                           (h) Withholding Taxes. The Company may withhold
from any amounts payable under the Agreement such Federal, state and local
taxes as may be required to be withheld pursuant to any applicable law or
regulation.

                           (i) Counterparts. The Agreement may be signed in
counterparts, each of which shall be an original, with the same effect as
if the signatures thereto and hereto were upon the same instrument.


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                  IN WITNESS WHEREOF, the parties hereto have duly executed
the Agreement as of the day and year first above written.


                                            EXECUTIVE


                                            /s/ Patrick Campbell
                                            ----------------------------------
                                            Patrick Campbell



                                            THE NASDAQ STOCK MARKET, INC


                                            By: /s/ Frank Zarb
                                               -------------------------------
                                                     Frank Zarb


                                            /s/ Todd A. Robinson
                                            ----------------------------------
                                            Todd A. Robinson
                                            Chairman, Management Compensation
                                            Committee





                                 Schedule A

                           Board of Directors and
                        Board of Advisors Membership

                              Patrick Campbell


E.F. Wildermuth Foundation

The Nasdaq Investment Products Services

Ohio University Foundation Board

D.C. Charter School Board