Document:

<PAGE>   1
                                                                     EXHIBIT 4.6

                          REGISTRATION RIGHTS AGREEMENT

         This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is entered into
as of this 21st day of July, 2000 (the "Effective Date") by and among Ameritrade
Holding Corporation, a Delaware corporation (together with its successors and
assigns, including a corporate successor entity, "Ameritrade"), and J. Roderick
Heller, III and Dennis Hooks (the "Stockholder Representatives") as
representatives of each stockholder of Financial Passport, Inc., a Delaware
Corporation ("FPI"), as of the date of this Agreement (such FPI stockholders
collectively referred to as the "Investors").

                                    RECITALS

         WHEREAS, Ameritrade, OM Acquisition Sub I, Inc. ("Merger Sub") and
OnMoney Financial Services Corporation ("OnMoney"), each wholly owned
subsidiaries of Ameritrade, and FPI have entered into a Merger Agreement dated
as of even date herewith (the "Merger Agreement"), providing for the merger of
Merger Sub with and into FPI upon which the stockholders of FPI shall receive
shares of Ameritrade common stock (the "Merger Shares"); and

         WHEREAS, pursuant to the Merger Agreement and as a condition to the
Merger, the Company and the Investors were to enter into a "Piggyback
Registration Rights Agreement" with respect to the Merger Shares;

         NOW, THEREFORE, in consideration of the mutual premises, covenants and
conditions set forth herein, the parties hereby agree as follows:

         1. DEFINITIONS. Capitalized terms used herein without definition shall
have the meanings assigned to such terms in the Merger Agreement. For the
purposes of this Agreement:

                  "Commission" means the U.S. Securities and Exchange Commission
or any other governmental authority from time to time administering the
Securities Act.

                  "Common Shares" means shares of common stock of Ameritrade.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
amended or any similar federal statute and the rules and the regulations of the
Commission promulgated thereunder, all as the same shall be in effect from time
to time.

                  "Holder" means any person owning or having the right to
acquire Registrable Securities or any assignee thereof in accordance with
Section 9 hereof.

                  "Register," "Registered," and "Registration" refer to a
registration effected by preparing and filing a registration statement or
similar document in compliance with the Securities Act, and the declaration or
ordering of effectiveness of such registration statement or document.

                  "Registrable Securities" means (i) the Merger Shares, (ii) any
common stock of Ameritrade issued as (or issuable upon the conversion or
exercise of any warrant, right or other security which is issued as) a dividend
or other distribution with respect to, or in

<PAGE>   2

exchange for or in replacement of, the Merger Shares, and (iii) any Common
Shares delivered to FPI stockholders upon forfeiture of restricted Ameritrade
stock by former option holders of FPI pursuant to Restricted Stock Agreements
executed by such option holders on or prior to the date of this Agreement,
excluding in all cases, however, any Registrable Securities sold by a person in
a transaction in which its rights under Section 2 are not assigned. As to any
particular Registrable Securities, such securities shall cease to be Registrable
Securities when (a) a registration statement with respect to the sale of such
securities shall have become effective under the Securities Act and such
securities shall have been transferred in accordance with such registration
statement, (b) such securities shall have been sold to the public pursuant to
Rule 144 or the Holder is free to sell all such securities without volume or
manner of sale restrictions pursuant to Rule 144 (or any successor provision)
under the Securities Act, or (c) they shall have ceased to be outstanding.

                  "Registration Expenses" means all expenses incident to
Ameritrade's performance of or compliance with Section 2, including, without
limitation, (a) any allocation of salaries and expenses of Ameritrade personnel
or other general overhead expenses of Ameritrade, or other expenses for the
preparation of historical and pro forma financial statements or other data
normally prepared by Ameritrade in the ordinary course of business; (b) all
Registration, application, filing, transfer fees, exchange listing fees, and
register fees; (c) all NASD fees and fees and expenses of Registration or
qualification of Registrable Securities under state securities or blue sky laws;
(d) all word processing, duplicating and printing expenses, messenger and
delivery expenses; (e) the fees and expenses of counsel for Ameritrade and the
fees of Ameritrade's independent accountants, including the expenses of
customary "cold comfort" letters required by or incident to such performance and
compliance; and (f) any fees and disbursements of underwriters and
broker-dealers customarily paid by issuers or sellers of securities; provided,
however, that Registration Expenses shall exclude: (i) broker or underwriting
fees, discounts, selling commissions and transfer taxes, if any, in respect of
the Registrable Securities, (ii) all out-of-pocket expenses of Selling Holders'
brokers or dealers, and (iii) all fees and disbursements of counsel for Selling
Holders or any such brokers or dealers, all of which shall be borne by the
Selling Holders.

                  "Securities Act" means the Securities Act of 1933, as amended,
or any similar federal statute, and the rules and regulations of the Commission
promulgated thereunder, all as the same shall be in effect from time to time.

                  "Selling Holder" means any Holder that has requested inclusion
of Registrable Securities held by such Holder in a Registration by the Company
pursuant to Section 2 hereof.

         2. PIGGYBACK REGISTRATION. If (but without any obligation to do so) (a)
Ameritrade proposes to register (including for this purpose a registration
effected by Ameritrade for any stockholders other than Investors) any of its
Common Shares under the Securities Act in connection with the public offering of
such securities solely for cash (other than a Registration relating solely to
the sale of securities to participants in an Ameritrade stock plan, or on Form
S-4 with respect to any merger, consolidation or acquisition) and (b) a
registration statement covering the sale of all of the Registrable Securities is
not then effective and available for sales thereof by the Investors, Ameritrade
will, prior to such filing, give written notice to all Holders

                                      -2-
<PAGE>   3

of its intention to do so. Each Holder shall have fifteen (15) days after
receiving such notice to deliver to Ameritrade a written request specifying the
amount of Registrable Securities that such Holder intends to sell and its
intended method of disposition of such Registrable Securities. Upon the receipt
of such request, Ameritrade shall use commercially reasonable efforts to cause
all Registrable Securities Ameritrade has been requested by such Holder or
Holders to register to be registered under the Securities Act to the extent
necessary to permit their sale or other disposition in accordance with the
intended methods of distribution specified in the request of such Holder or
Holders; provided, however, that Ameritrade shall have the right, prior to the
effective date of the registration statement, to postpone or withdraw any
registration effected pursuant to this Section 2 without obligation to any
Holder.

         3. UNDERWRITING REQUIREMENTS. In connection with any proposed
registration as to which Holders have a right to notice under Section 2 and that
involves an underwriting:

                  (a) The Company shall not be required to include any
Registrable Securities in such offering unless the Holders thereof accept the
terms of the underwriting as agreed upon between Ameritrade and the underwriters
selected by it (provided that such terms must be consistent with this
Agreement), and then only in such quantity as will not, in the opinion of the
underwriters, jeopardize the success of the offering by Ameritrade; and

                  (b) If the underwriter for the offering advises Ameritrade
that the number of Registrable Securities requested to be included will
adversely affect the success of the offering, Ameritrade shall include in such
offering only the quantity of Registrable Securities, if any, that the
underwriter advises will not adversely affect the success of the offering,
allocated, pro rata, among the Selling Holders based upon the number of Common
Shares each such person shall have requested Ameritrade to include in the
offering.

         4. ALLOCATION OF EXPENSES. Ameritrade will pay all Registration
Expenses of all Registrations under this Agreement.

         5. OBLIGATIONS OF AMERITRADE. Whenever required under this Agreement to
effect the Registration of any Registrable Securities under this Agreement,
Ameritrade shall, as expeditiously as reasonably possible:

                  (a) File with the Commission a registration statement with
respect to such Registrable Securities and use commercially reasonable efforts
to cause such registration statement to become and remain effective until the
earlier of (i) ninety (90) days, or if such registration statement is related to
an underwritten offering, such longer period as in the opinion of counsel for
the underwriters a prospectus is required by law to be delivered in connection
with the sales of Registrable Securities by an underwriter or dealer or (ii)
such shorter period as is required to complete the distribution of all of the
securities covered by such registration statement (but in any event not before
the expiration of any longer period required under the Securities Act).

                  (b) Prepare and file with the Commission such amendments and
supplements to the registration statement and the prospectus used in connection
with the registration as may be necessary to comply with the provisions of the
Securities Act with respect

                                      -3-
<PAGE>   4

to the disposition of all securities covered by the registration statement
during such period in accordance with the intended methods of disposition by the
Selling Holder or Selling Holders thereof set forth in such registration
statement, including at the request of any Selling Holder, any amendments or
supplements necessary to reflect any information regarding such Selling Holder
or its plan of distribution, until the time as the Registrable Securities cease
to be Registrable Securities;

                  (c) Furnish to each Selling Holder such reasonable numbers of
copies of the prospectus, including a preliminary prospectus, in conformity with
the requirements of the Securities Act, and such other documents as the Selling
Holders may reasonably request in order to facilitate the public sale or other
disposition of the Registrable Securities owned by the Selling Holders;
provided, however, that if Ameritrade has delivered preliminary or final
prospectuses to the Selling Holders and after having done so the prospectus is
amended to comply with the requirements of the Securities Act, Ameritrade shall
promptly notify the Selling Holders and, if requested, the Selling Holders shall
immediately cease making offers of Registrable Securities and return all
prospectuses to Ameritrade. Ameritrade shall promptly provide the Selling
Holders with revised prospectuses and, following receipt of the revised
prospectuses, the Selling Holders shall be free to resume making offers of the
Registrable Securities;

                  (d) Use commercially reasonable efforts to register or qualify
the Registrable Securities covered by the registration statement under the
securities or Blue Sky laws of such states as the Selling Holders shall
reasonably request, and do any and all other acts and things that may be
necessary or desirable to enable the Selling Holders to consummate the public
sale or other disposition in such states of the Registrable Securities owned by
the Selling Holders; provided, however, that Ameritrade shall not be required in
connection therewith or as a condition thereto to qualify to do business or to
file a general consent to service of process in any such states or
jurisdictions;

                  (e) In the event of any underwritten public offering, enter
into and perform its obligations under an underwriting agreement, in usual and
customary form, with the managing underwriter of such offering; provided,
however, that each Selling Holder participating in such underwriting shall also
enter into and perform its obligations under such agreement; and

                  (f) Promptly notify each Selling Holder of Registrable
Securities covered by such registration statement at any time of the happening
of any event as a result of which the prospectus included in such registration
statement, as then in effect, includes an untrue statement of a material fact or
omits to state a material fact required to be stated therein or necessary to
make the statements therein not misleading in the light of the circumstances
then existing.

         6. CERTAIN OBLIGATIONS OF HOLDERS. It shall be a condition precedent to
the obligations of Ameritrade to take any action under this Agreement with
respect to the Registrable Securities of any Selling Holder that such Holder
meet the following conditions:

                                      -4-
<PAGE>   5

                  (a) Holder shall furnish to Ameritrade such information
regarding itself, the Registrable Securities held by it, and the intended method
of disposition of such securities as shall be required to effect the
Registration of such Holder's Registrable Securities;

                  (b) All information specifically with respect to such Holder
furnished to Ameritrade by or on behalf of Holder for use in connection with the
preparation of any registration statement relating to such Registrable
Securities shall be true and correct in all material respects and shall not omit
any material fact necessary to make such information, in light of the
circumstances under which it was disclosed, not misleading;

                  (c) Such Holder shall distribute in connection with the
offering and sale of the Registrable Securities the prospectus or other offering
material permitted by the Securities Act and prepared by the Company, and only
such materials;

                  (d) Such Holder will comply with the provisions of the
Exchange Act and the regulations thereunder;

                  (e) To assist Ameritrade in qualifying the Registrable
Securities for sale under applicable state securities laws, such Holder will
advise Ameritrade of each jurisdiction in which it intends to offer or sell any
or all Registrable Securities, and will agree not to offer or sell any
Registrable Securities in any jurisdiction where the Registrable Securities are
not registered or exempt from registration;

                  (f) Such Holder will inform Ameritrade in writing of any and
all sales, or other transfers or dispositions of any Registrable Securities made
pursuant to the registration statement within fifteen (15) calendar days
following each such disposition;

                  (g) In the event of any underwritten public offering of any
Registrable Securities pursuant to Section 2, such Holder shall enter into and
perform its obligations under an underwriting agreement, in the form agreed upon
by Ameritrade and the underwriters selected by it that is customary for the type
of transaction contemplated;

                  (h) Upon the receipt of notice from Ameritrade of the
happening of any event described in Section 5(f), or upon the issuance of any
stop order or other order suspending the effectiveness of the registration
statement, such Holder will immediately discontinue disposition of the
Registrable Securities pursuant to the registration statement until the filing
of the effective post-effective amendment or the supplemented prospectus
referred to in Section 5 or until the withdrawal of such stop order or other
order, as applicable, and, if so directed by Ameritrade, such Holder will
deliver to Ameritrade (at Ameritrade's expense) all copies, other than permanent
file copies then in such Holder's possession, of the prospectus covering such
Registrable Securities current at the time of its receipt of such notice.

         7. INDEMNIFICATION AND CONTRIBUTION. In the event of any Registration
of any of the Registrable Securities under the Securities Act pursuant to this
Agreement:

                  (a) Ameritrade will indemnify and hold harmless each Selling
Holder of such Registrable Securities, each underwriter of such Registrable
Securities, and each other person, if any, who controls such Selling Holder or
underwriter within the meaning of the

                                      -5-
<PAGE>   6

Securities Act or the Exchange Act (collectively, the "Indemnified Selling
Holder Parties"), against any losses, claims, damages, or liabilities, joint or
several, to which such Selling Holder, underwriter, or controlling person may
become subject under the Securities Act, the Exchange Act, state securities or
Blue Sky laws, or otherwise, insofar as such losses, claims, damages, or
liabilities (or actions in respect thereof) arise out of or are based upon a
claim by a third party alleging any of the following statements, omissions or
violations (collectively the "Indemnified Violations"): (i) any untrue statement
or alleged untrue statement of any material fact contained in any registration
statement under which such Registrable Securities were registered under the
Securities Act, any preliminary prospectus, or final prospectus contained in the
registration statement, or any amendment or supplement to such registration
statement; (ii) the omission or alleged omission to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading; or (iii) any violation or alleged violation by Ameritrade of the
Securities Act, the Exchange Act, any state securities law or any rule or
regulation promulgated under the Securities Act, the Exchange Act or any state
securities law. Ameritrade will reimburse such Indemnified Selling Holder Party
for any legal (to the extent provided in Section 7(c)) and other expenses
reasonably incurred in connection with defending any such Indemnified Violation;
provided, however, that:

                           (x) The indemnity agreement contained in this Section
7(a) shall not apply to amounts paid in settlement of any such loss, claim,
damage, liability, or action if such settlement is effected without the consent
of Ameritrade (which consent shall not be unreasonably withheld), nor shall
Ameritrade be liable in any such case for any such loss, claim, damage,
liability or action to the extent that it arises out of or is based upon an
Indemnified Violation which occurs in reliance upon and in conformity with
written information furnished by any Indemnified Selling Holder Party expressly
for use in connection with such registration;

                           (y) Ameritrade will not be required to indemnify any
Indemnified Selling Holder Party to the extent that any loss, claim, damage,
liability or action results from such party selling Registrable Securities (1)
to anyone to whom there was not sent or given, at or prior to the written
confirmation of the sale of such Registrable Securities, a copy of the
prospectus, as most recently amended or supplemented, if Ameritrade has
previously furnished or made available to the sellers of the Registrable
Securities copies thereof or (2) during any period following written notice by
Ameritrade to such party of an event described in Section 5(f) or of the
issuance of any stop order or other order suspending the effectiveness of the
registration statement; and

                           (z) The indemnity provided in this Section 7(a) with
respect to any preliminary prospectus shall not apply, if the untrue statement
or alleged untrue statement or omission or alleged omission was corrected in the
final prospectus.

                  (b) Each Selling Holder of Registrable Securities, severally
and not jointly, will indemnify and hold harmless Ameritrade, each of its
directors and officers and each underwriter (if any) and each person, if any,
who controls Ameritrade or any such underwriter within the meaning of the
Securities Act or the Exchange Act (collectively, the "Indemnified Ameritrade
Parties"), against any losses, claims, damages, or liabilities, joint or
several, to which such Indemnified Ameritrade Parties may become subject under
the Securities Act, Exchange Act, state securities or Blue Sky laws, or
otherwise, insofar as such losses, claims, damages, or

                                      -6-
<PAGE>   7

liabilities (or actions in respect thereof) arise out of or are based upon any
untrue statement or alleged untrue statement of a material fact contained in any
registration statement under which such Registrable Securities were registered
under the Securities Act, any preliminary prospectus or final prospectus
contained in the registration statement, or any amendment or supplement to the
registration statement, or arise out of or are based upon any omission or
alleged omission to state a material fact required to be stated therein or
necessary to make the statements therein not misleading, if the statement or
omission was made in reliance upon and in conformity with information relating
to such Selling Holder furnished in writing to Ameritrade by or on behalf of
such Selling Holder specifically for use in connection with the preparation of
such registration statement, prospectus, amendment, or supplement. Such Selling
Holder will reimburse each of the Indemnified Ameritrade Parties for any legal
and other expenses reasonably incurred in connection with defending any such
claim, liability, demand, loss or action; provided, however, that the indemnity
agreement contained in this Section 7(b) shall not apply to amounts paid in
settlement of any such loss, claim, damage, liability or action if such
settlement is effected without the consent of such Selling Holder (which consent
will not be unreasonably withheld); and provided, further, that the obligations
of each Selling Holder hereunder shall be limited to an amount equal to the
proceeds to such Selling Holder from Registrable Securities sold in connection
with such Registration.

                  (c) Each party entitled to indemnification under this Section
7 (the "Indemnified Party") shall give notice to the party required to provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the Indemnifying Party to assume the defense of any such claim or any
litigation resulting therefrom; provided, however, that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or litigation,
shall be approved by the Indemnified Party (whose approval shall not be
unreasonably withheld). The failure by the Indemnified Party to deliver written
notice to the Indemnifying Party within a reasonable time of the commencement of
any such action, to the extent such failure is prejudicial to its ability to
defend such action, shall relieve such Indemnifying Party of any liability to
the Indemnified Party under this Section 7(c), but the omission so to deliver
written notice to the Indemnifying Party will not relieve it of any liability
that it may have to any indemnified party otherwise than under this Section
7(c). The Indemnified Party may participate in such defense at such party's
expense; provided, however, that the Indemnifying Party shall pay such expense
if representation of such Indemnified Party by the counsel retained by the
Indemnifying Party would be inappropriate due to actual or potential differing
interests between the Indemnified Party and any other party represented by such
counsel in such proceeding. No Indemnifying Party in the defense of any such
claim or litigation shall, except with the consent of each Indemnified Party,
consent to entry of any judgment or enter into any settlement that does not
include as an unconditional term thereof the giving by the claimant or plaintiff
to such Indemnified Party a release from all liability in respect of such claim
or litigations, and no Indemnified Party shall consent to entry of any judgment
or settle such claim or litigation without the prior written consent of the
Indemnifying Party.

                  (d) In order to provide for just and equitable contribution to
joint liability under the Securities Act in any case in which either (i) any
Selling Holder of Registrable Securities exercising rights under this Agreement,
or any controlling person of any such Holder, makes a claim for indemnification
pursuant to this Section 7 but it is judicially determined (by

                                      -7-
<PAGE>   8

the entry of a final judgment or decree by a court of competent jurisdiction and
the expiration of time to appeal or the denial of the last right of appeal) that
such indemnification may not be enforced in such case notwithstanding the fact
that this Section 7 provides for indemnification in such case, or (ii)
contribution under the Securities Act may be required on the part of any such
Selling Holder or any such controlling person in circumstances for which
indemnification is provided under this Section 7; then, in each such case,
Ameritrade and such Selling Holder will contribute to the aggregate losses,
claims, damages, or liabilities to which they may be subject (after contribution
from others) in such proportions so that such Holder is responsible for the
portion represented by the percentage that the public offering price of its
Registrable Securities offered by the registration statement bears to the public
offering price of all securities offered by such registration statement, and
Ameritrade is responsible for the remaining portion; provided, however, that, in
any such case, (A) no such Holder will be required to contribute any amount in
excess of the proceeds to it of all Registrable Securities sold by it pursuant
to such registration statement, and (B) no person or entity guilty of fraudulent
misrepresentation, within the meaning of Section 11(f) of the Securities Act,
shall be entitled to contribution from any person or entity who is not guilty of
such fraudulent misrepresentation.

                  (e) The obligations of Ameritrade and Holders under this
Section 6 shall survive the completion of any offering of Registrable Securities
in a registration statement under this Section 7, or otherwise.

         8. REPORTS UNDER THE EXCHANGE ACT. With a view to making available to
the Holders the benefits of Rule 144 promulgated under the Securities Act and
any other rule or regulation of the Commission that may at any time permit a
Holder to sell securities of Ameritrade to the public without Registration, for
so long as any Investor shall hold Registrable Securities Ameritrade agrees to:

                  (a) Make and keep public information available, as those terms
are understood and defined in Rule 144 under the Securities Act;

                  (b) File with the Commission in a timely manner all reports
and other documents required of Ameritrade under the Securities Act and the
Exchange Act; and

                  (c) Furnish to any Holder, so long as such Holder owns any
Registrable Securities, forthwith upon request (i) a written statement by
Ameritrade that it has complied with the reporting requirements of Rule 144
under the Securities Act and the Exchange Act, (ii) a copy of the most recent
annual or quarterly report of Ameritrade and such other reports and documents so
filed by Ameritrade, and (iii) such other information as may be reasonably
requested in availing any Holder of any rule or regulation of the Commission
which permits the selling of any such securities without Registration or
pursuant to such form.

         9. TRANSFER OF REGISTRATION RIGHTS. The Registration rights of any
Holder under this Agreement may not be transferred except as to any affiliate of
the Holder; provided, however, that Ameritrade is given written notice from the
transferor at the time of such transfer stating the name and address of the
transferee and identifying the securities with respect to which the rights
hereunder are being transferred. As a condition to the effectiveness of any
transfer permitted hereunder (i) the transferee shall agree, in writing, upon
request of Ameritrade, to be

                                      -8-
<PAGE>   9

bound by the provisions of this Agreement, and (ii) Ameritrade shall be given
written notice at the time of or within a reasonable time after said transfer,
stating the name and address of said transferee or assignee and identifying the
securities with respect to which such Registration rights are being assigned.

         10. AMENDMENT OF REGISTRATION RIGHTS. Any provision of this Agreement
may be amended or the observance thereof may be waived either generally or in a
particular instance and either retroactively or prospectively, only with the
written consent of Ameritrade and 66 2/3% of the Registrable Securities then
outstanding. Any amendment or waiver effected in accordance with this Section 10
shall be binding upon each Holder of any Registrable Securities, each future
Holder of Registrable Securities, the Investors and Ameritrade. Nothing herein
shall prevent a holder of Registrable Securities from waiving its individual
rights. The number of shares of "Registrable Securities then outstanding" shall
be determined by the number of Common Shares outstanding and the number of
Common Shares issuable pursuant to then exercisable or convertible securities,
which are, in each case, Registrable Securities.

         11. MISCELLANEOUS.

                  (a) Entire Agreement. This Agreement and the documents
referred to herein constitute the entire agreement among the parties relating to
the subject matter hereof, and supersedes all prior agreements, arrangements,
and understandings, written or oral, relating to the subject matter hereof.

                  (b) Specific Performance. The parties agree that irreparable
damage would occur and that neither the Investors nor Ameritrade would have any
adequate remedy at law in the event that any of the provisions of this Agreement
were not performed in accordance with its specific terms or were otherwise
breached. It is accordingly agreed that each party shall be entitled to an
injunction or injunctions to prevent breaches by the other parties of this
Agreement and to enforce specifically the terms and provisions of this
Agreement, this being in addition to any other remedy to which it is entitled at
law or in equity.

                  (c) Successors and Assigns. The terms and conditions of this
Agreement shall inure to the benefit of and be binding upon the respective
successors and permitted assigns of the parties. Except as provided in Section
7, nothing in this Agreement, express or implied, is intended to confer upon any
party other than the parties hereto or their respective successors and permitted
assigns any rights, remedies, obligations, or liabilities under or by reason of
this Agreement except as expressly provided in this Agreement.

                  (d) Notices. Unless otherwise provided, any notice required or
permitted under this Agreement shall be sent by courier service or certified
mail, return receipt requested, charges pre-paid, or by facsimile transmission,
to the address or facsimile number specified below:

                                      -9-
<PAGE>   10

                           If to Ameritrade:

                           Ameritrade Holding Corporation
                           132 National Business Parkway, Suite 101
                           Annapolis Junction, MD 20701
                           Fax: 240-568-3480
                           Attention: General Counsel

                           With a copy to:

                           Mayer, Brown & Platt
                           190 LaSalle Street
                           Chicago, IL. 60603
                           Attention: Carol S. Rivers, Esq.
                           Fax: 312-701-7711

                           If to the Investors:

                           J. Roderick Heller III
                           [to complete]

                           With a copy to:

                           Wilmer, Cutler & Pickering
                           2445 M Street, N.W.
                           Washington, D.C. 20037-1420
                           Attn: Russell J. Bruemmer, Esq.
                           Fax: (202) 663-6363

or to such other address or facsimile number as the person may specify in a
notice duly given to the sender as provided herein. Notice given hereunder will
operate and be deemed effective and received (a) in the case of facsimile, when
received by recipient and sender has received an electronic confirmation of
receipt of the transmission (provided, however, that such transmission and
confirmation are received by 5:00 p.m. on a business day; otherwise, such
transmission shall be deemed to have been received on the next business day);
(b) in the case of delivery by courier, upon the date of delivery indicated in
the records of such courier; or (c) in the case of certified mail, upon signing
of the return receipt.

                  (e) Headings; Counterparts. Headings in this Agreement are for
purposes of reference only and shall not limit or otherwise affect the meaning
hereof. This Agreement may be executed in any number of counterparts, each of
which shall be an original, but all of which together shall constitute one
instrument.

                                      -10-
<PAGE>   11

                  (f) Further Assurances. Each of the parties hereto agrees to
execute and deliver those writings and documents reasonably required to more
fully carry out the purposes of this Agreement and the transactions contemplated
hereby.

                  (g) Governing Law; Severability. This Agreement shall be
governed by and construed in accordance with the internal laws of the State of
New York, exclusive of any choice of law principles that would result in a
choice of law other than the laws of the State of New York, except to the extent
superseded or preempted by the laws of the United States. Whenever possible,
each provision of this Agreement shall be interpreted in such manner as to be
effective and valid under said laws; provided, however, that if any provision of
this Agreement shall be held to be invalid or unenforceable under applicable
law, such provision shall be ineffective only to the extent of such invalidity
or unenforceability, without invalidating the remainder of such provision or the
remainder of the provisions of this Agreement.

                  (h) Consent of Jurisdiction. The parties consent to and waive
any objection to the jurisdiction of the United States District Court for the
State of New York, or any state court located in New York, over the person of
any party to this Agreement, for purposes of any action brought under or as the
result of a breach of this Agreement. The parties agree that venue of any action
brought under or as the result of a breach of this Agreement shall be proper in
the courts named above, and each party waives any objection to such venue.

                  (i) Market Stand-Off Agreement. Each Holder shall, if
requested by the managing underwriter and only to the extent the same stand-off
provision or a more restrictive such provision is imposed on directors and
officers of the Company by the managing underwriter, during the period
commencing on the date of the final prospectus relating to any underwritten
public offering of securities by the Company and ending on the date specified by
the Company and the managing underwriter (such period not to exceed one hundred
eighty (180) days) (i) lend, offer, pledge, sell, contract to sell, sell any
option or contract to purchase, purchase any option or contract to sell, grant
any option, right or warrant to purchase, or otherwise transfer or dispose of,
directly or indirectly, any Common Shares or any securities convertible into or
exercisable or exchangeable for Common Stock (whether such shares or any such
securities are then owned by such Holder or are thereafter acquired), or (ii)
enter into any swap or other arrangement that transfers to another, in whole or
in part, any of the economic consequences of ownership of the Common Shares,
whether any such transaction described in clause (i) or (ii) above is to be
settled by delivery of Common Shares or such other securities, in cash or
otherwise. The underwriters in connection with such public offerings by the
Company are intended third party beneficiaries of this section and shall have
the right, power and authority to enforce the provisions hereof as though they
were a party hereto.

         In order to enforce the foregoing covenant, the Company may impose
stop-transfer instructions with respect to the Common Shares (and the shares or
securities of every other person subject to the foregoing restriction) until the
end of such period.

                           [Execution Page to Follow]

                                      -11-
<PAGE>   12

                  IN WITNESS WHEREOF, the parties have caused this Agreement to
be executed under seal by their respective duly authorized officers as of the
day and year first above written.

AMERITRADE                              INVESTORS

AMERITRADE HOLDING                      By:
CORPORATION

/s/ John R. MacDonald                   /s/ J. Roderick Heller, III
-------------------------------         -------------------------------
By: John R. MacDonald                   J. Roderick Heller, III
Its: Vice President and                 As Stockholder Representative
     Chief Financial Officer

                                        By:

                                        /s/ Dennis Hooks
                                        -------------------------------
                                        Dennis Hooks
                                        As Stockholder Representative<PAGE>   1
                                                                   EXHIBIT 10.11

                              EMPLOYMENT AGREEMENT

     THIS AGREEMENT, made and entered into as of August 2, 1999 (the "Effective
Date"), by and between Vincent Passione ("Passione") and OnMoney Financial
Services Corp. ("OnMoney"), a subsidiary of Ameritrade Holding Corporation;

                                WITNESSETH THAT:

     WHEREAS, the parties desire to enter into this Agreement pertaining to the
employment of Passione by OnMoney;

     NOW, THEREFORE, in consideration of the mutual covenants and agreements set
forth below, it is hereby covenanted and agreed by Passione and OnMoney as
follows:

     1. Performance of Services. Passione's employment with OnMoney shall be
subject to the following:

(a)  Subject to the terms of this Agreement, OnMoney hereby agrees to employ
     Passione as an executive during the Agreement Term (as defined below) and
     Passione hereby agrees to remain in the employ of OnMoney during the
     Agreement Term.

(b)  During the Agreement Term, while Passione is employed by OnMoney, Passione
     shall devote his full time, energies and talents to serving as its
     executive and agrees that he shall perform his duties faithfully and
     efficiently subject to the directions of the Chairman of the Board of
     Directors of OnMoney ("the Chairman") during the Agreement Term. Passione's
     duties may include providing services for both OnMoney and the Subsidiaries
     (as defined below), as determined by the Chairman. Passione shall have such
     authority, power, responsibilities and duties as are inherent in his
     position (and the undertakings applicable to his position) and necessary to
     carry out his responsibilities and the duties required of him hereunder.

(c)  Notwithstanding the foregoing provisions of this paragraph 1, during the
     Agreement Term, Passione may devote reasonable time to activities other
     than those required under this Agreement, including the supervision of his
     personal investments, and activities involving professional, charitable,
     community, educational, religious and similar types of organizations,
     speaking engagements, and similar types of activities, to the extent that
     such other activities do not, in the judgement of the Chairman, inhibit or
     prohibit the performance of Passione's duties under this Agreement, or
     conflict in any material way with the business of OnMoney or any
     Subsidiary; provided, however, that Passione shall not serve on the board
     of any business, or hold any other position with any business, without the
     consent of the Chairman.

<PAGE>   2
(d)  Subject to the terms of this Agreement, Passione shall not be required to
     perform services under this Agreement during any period that he is
     Disabled. Passione shall be considered Disabled during any period in which
     he has a physical or mental disability which renders him incapable, after
     reasonable accommodation, of performing his duties under this Agreement. In
     the event of a dispute as to whether Passione is Disabled, OnMoney may
     refer the same to a licensed practicing physician of OnMoney's choice, and
     Passione agrees to submit to such tests and examinations as such physician
     shall deem appropriate. During the period in which Passione is Disabled,
     the Chairman may appoint a temporary replacement to assume Passione's
     responsibilities.

(e)  The "Agreement Term" shall be the period beginning on the Effective Date
     and ending on the third anniversary of the Effective Date. Thereafter, the
     Agreement Term will be automatically extended for 12-month periods, unless
     one party to this Agreement provides notice of non-renewal to the other at
     least 90 days before the last day of the Agreement Term. If a Change in
     Control occurs during the Agreement Term, the Term shall automatically be
     extended to the two-year anniversary of the Change in Control date.

(f)  For purposes of this Agreement, the term "Subsidiary" shall mean any
     corporation, partnership, joint venture or other entity during any period
     in which at least a fifty percent interest in such entity is owned,
     directly or indirectly, by OnMoney (or a successor to OnMoney).

     2. Compensation. Subject to the terms of this Agreement, during the
Agreement Term, while Passione is employed by OnMoney, OnMoney shall compensate
him for his services as follows:

(a)  Passione shall receive, for each 12-consecutive month period beginning on
     the Effective Date and each anniversary thereof, in substantially equal
     monthly or more frequent installments, an annual base salary of not less
     than $300,000.00 ("the Salary"). Passione's Salary rate shall be reviewed
     by the Compensation Committee of the Board of Directors of OnMoney (the
     "Committee"), while Passione is employed by OnMoney, to determine whether
     an increase in the amount of Salary is appropriate. In no event shall the
     Salary of Passione be reduced to an amount that is less than the amount
     specified in this paragraph (a), or to an amount that is less than the
     amount that he was previously receiving, except to the extent that
     reductions of the same percentage are being made at the same time to the
     salaries of all other Company officers in the corporate office at or above
     the vice-president level, and such Salary shall be restored to its prior
     level when, and to the same extent, as the restoration that applies to the
     other officers.

(b)  Passione shall be entitled to incentive compensation in the form of an
     annual cash bonus, based upon a target amount as established by the
     Committee, but in no event shall be the
<PAGE>   3
target be less than $250,000.00. Such bonus shall be pro rated to the extent the
period worked is less than the applicable Performance Period, or to the extent
that a Performance Period is less than 12 months. Subject to the immediately
preceding sentence, the actual amount of such bonus, if any, shall be determined
by the Committee taking into consideration whether Passione has met the
performance targets that have been set by the Committee for such year, the
relative contribution by Passione to the business of OnMoney, general economic
conditions, and such other factors as the Committee deems relevant. For purposes
of this paragraph, the term Performance Period shall mean the period of time
established by the Committee, which has historically been a period of 6 months.

          (i)  For purposes of this paragraph, Passione's first bonus payment
               shall be for the period beginning on the Effective Date and
               ending on September 30, 1999. Such payment shall be in the amount
               of $125,000.00 and will be made at the same time and in the same
               manner as bonuses are paid to other senior executives of OnMoney.

          (ii) For purposes of this paragraph, Passione's second bonus payment
               shall be for the 6 month period ending on March 31, 2000. Such
               payment in the amount of $125,000.00 will be made, at the same
               time and in the same manner as bonuses are paid to other senior
               executives of OnMoney.

(c)  Stock Options.

          (i)  Within 6 months from the Effective Date (but in any event prior
               to the filing of a registration statement for the Initial Public
               Offering, as defined below), OnMoney shall adopt a stock option
               plan (the "Option Plan") and Passione shall be awarded a
               non-qualified stock option (the "Initial Option") pursuant to the
               Option Plan to purchase shares of OnMoney's common stock equal to
               2.5% of the number of outstanding shares of common stock of
               OnMoney (determined as of the date of the grant of the Initial
               Option). The per share exercise price of the Initial Option shall
               be the Fair Market Value of the OnMoney's Stock as of the date of
               the grant, as defined by the terms of the Option Plan. The
               Initial Option, subject to the terms and conditions of the Option
               Plan, shall become exercisable with respect to 25% of the shares
               as of the first anniversary of the grant date and with respect to
               an additional 25% of the shares on each subsequent anniversary
               date until such time as the Initial Option is fully exercisable,
               provided Passione is employed by OnMoney on such anniversary
               dates or the Initial Option becomes otherwise exercisable in
               accordance with the terms of this Agreement.
<PAGE>   4
               Subsequent to the Initial Public Offering, OnMoney shall file and
               maintain in effect a registration statement covering shares
               issuable upon the exercise of options awarded under the Option
               Plan.

          (ii) Prior to the earlier of the one year anniversary of the Effective
               Date or the Initial Public Offering, the Committee shall review
               the performance of Passione and, based upon such performance,
               will consider an increase in Passione's compensation and will
               consider granting to Passione an additional non-qualified stock
               option award (the "Additional Option") pursuant to the terms and
               conditions of the Option Plan, with such award to be made, if it
               is made, prior to the Initial Public Offering, with an exercise
               price equal to the Fair Market Value of OnMoney's stock as of the
               date of grant.

         (iii) As of Effective Date, Passione shall be awarded a non-qualified
               stock option (the "Ameritrade Option") under the Ameritrade
               Holdings Corporation 1996 Long Term Incentive Plan (the
               "Ameritrade Plan") to purchase 25,000 shares of Ameritrade
               Holding Corporation ("Ameritrade") common stock (the "Ameritrade
               Stock") at a per share price equal to the Fair Market Value of a
               share of Ameritrade Stock on the date of the award. The
               Ameritrade Option shall become exercisable with respect to 50% of
               the shares covered by the option on the Election Date, defined
               below, if Passione makes the Option Election, as defined below,
               to be effective on such date, and will then become exercisable
               with respect to an additional 25% of the shares on each
               subsequent anniversary of the Election Date until such time as
               the option is fully exercisable, provided that Passione is
               employed by OnMoney or Ameritrade on such anniversary date or
               such Ameritrade Option becomes otherwise exercisable under the
               terms of this Agreement. The Ameritrade Option shall expire upon
               the earlier to occur of the following events; (A) Passione does
               not make the Option Election on the Election Date, (B) Passione
               exercises any portion of the Initial Option or the Additional
               Option prior to the Election Date, (C) the Initial Public
               Offering occurs prior to the Election Date, or (D) it otherwise
               expires under the terms and conditions of the Ameritrade Plan.

          (iv) In the event that the Initial Public Offering of OnMoney does not
               occur by the 24-month anniversary of the Effective Date (the
               "Election Date"), Passione shall have the right to make a one
               time irrevocable election (the "Option Election") to have the
               Initial Option and the Additional Option canceled in their
               entireties, with no future rights or
<PAGE>   5
               entitlement thereunder, at which time Passione shall become
               partially vested in the Ameritrade Option pursuant to the terms
               of the preceding paragraph.

(d)  One-Time Payments. To compensate Passione for forgoing alternative business
     opportunities, OnMoney shall provide to Passione a one time bonus payment
     of $125,000.00 within 60 days of the Effective Date. In the event that
     Passione's employment with OnMoney terminates pursuant to paragraph 3(e) of
     this Agreement prior to the one-year anniversary of the Effective Date, the
     amount previously paid pursuant to this paragraph 2(d) shall be repaid by
     Passione to OnMoney within 10 business days of the Date of Termination.

(e)  Passione shall be entitled to participate in all employee pension and
     welfare benefit plans and programs made available to OnMoney's senior level
     executives or to its employees generally, as such plans or programs may be
     in effect from time to time, including, without limitation, pension, profit
     sharing, savings and other retirement plans or programs, medical, dental,
     hospitalization, short-term and long-term disability and life insurance
     plans, supplemental life insurance, accidental death and dismemberment
     protection, travel accident insurance, and any other pension or retirement
     plans or programs and any other employee welfare benefit plans or programs
     that may be sponsored by OnMoney from time to time, including any plans
     that supplement the above-listed types of plans or programs, whether funded
     or unfunded. OnMoney, however, shall not be required to provide a benefit
     under this paragraph (e) if such benefit would duplicate (or otherwise be
     of the same type as) a benefit specifically required to be provided under
     another provision of this Agreement. Passione shall complete all forms and
     physical examinations, and otherwise take all other similar actions to
     secure coverage and benefits described in this paragraph 2, to the extent
     determined to be necessary or appropriate by OnMoney.

(f)  Passione shall be authorized to incur reasonable expenses for
     entertainment, traveling, meals, lodging and similar items in promoting
     OnMoney's business. OnMoney will reimburse Passione for all reasonable
     expenses so incurred in accordance with the normal practices of OnMoney.
     Passione shall not be entitled to reimbursement for expenses associated
     with the relocation of his personal residence related to the acceptance of
     employment with OnMoney.

(g)  OnMoney shall maintain directors and officers liability insurance in
     commercially reasonable amounts (as reasonably determined by the Board of
     Directors of OnMoney, the "Board"), and Passione shall be covered under
     such insurance to the same extent as other senior management employees of
     OnMoney. Passione shall be eligible for indemnification by OnMoney under
     OnMoney by-laws as currently in effect. OnMoney

                                       5
<PAGE>   6
     agrees that it shall not take any action that would impair Passione's
     rights to indemnification under OnMoney by-laws, as currently in effect.

(h)  Passione shall be entitled to paid vacations in accordance with the
     applicable policy of OnMoney as in effect from time to time, subject to a
     minimum of 3 weeks per annum.

     3. Termination. Passione's employment with OnMoney during the Agreement
Term may be terminated by OnMoney or Passione without any breach of this
Agreement only under the circumstances described in paragraphs 3(a) through
3(g):

(a)  Death. Passione's employment hereunder will terminate upon his death.

(b)  Permanent Disability. OnMoney may terminate Passione's employment during
     any period in which he is Permanently Disabled. Passione shall be
     considered "Permanently Disabled" during any period in which he is
     Disabled; provided, however, that Passione shall not be considered to be
     "Permanently Disabled" until, for a period of 180 consecutive days,
     Passione, as a result of a physical or mental disability, is incapable,
     after reasonable accommodation, of performing his duties under this
     Agreement on a permament, full-time basis, and is eligible for income
     replacement benefits under OnMoney's long-term disability plan during such
     period of disability. In the event of a dispute as to whether Passione is
     Permanently Disabled, OnMoney may refer the same to a mutually acceptable
     licensed practicing physician, and Passione agrees to submit to such tests
     and examination as such physician shall deem appropriate.

(c)  Cause. OnMoney may terminate Passione's employment hereunder at any time
     for Cause. For purposes of this Agreement, the term "Cause" shall mean:

     (i)  the willful and continued failure by Passione to substantially
          perform his duties with OnMoney (other than any such failure
          resulting from Passion's being Disabled), within a reasonable period
          of time after a written demand for substantial performance is
          delivered to Passione by the Board, which demand specifically
          identifies the manner in which the Board believes that Passione has
          not substantially performed his duties;

     (ii) the willful engaging by Passione in conduct which is demonstrably and
          materially injurious to OnMoney, monetarily or otherwise; or

    (iii) the engaging by Passione in egregious misconduct involving serious
          moral turpitude to the extent that, in the reasonable judgment of
          OnMoney's Board, Passione's credibility and reputation no longer
          conform to the standard of OnMoney's executives.

                                       6
<PAGE>   7
     (iv) the violation by Passione of the representations made pursuant to
          paragraph 10 of this Agreement.

     For purposes of this Agreement, no act, or failure to act, on Passione's
     part shall be deemed "willful" unless done, or omitted to be done, by
     Passione not in good faith and without reasonable belief that Passione's
     action or omission was in the best interest of OnMoney.

(d)  Constructive Discharge. If Passione (i) provides notice to OnMoney of the
     occurrence of Good Reason (as defined below) within a reasonable time after
     Passione has knowledge of the circumstances constituting Good Reason, which
     notice shall specifically identify the circumstances which Passione
     believes constitute Good Reason; (ii) OnMoney fails to notify Passione of
     OnMoney's intended method of correction within a reasonable period of time
     after OnMoney receives the notice, or OnMoney fails to correct the
     circumstances within a reasonable time after such notice (except that no
     such opportunity to correct shall be applicable if the circumstances
     constituting Good Reason are those described in paragraph (ii) below,
     relating to relocation); and (iii) Passione resigns within a reasonable
     time after receiving OnMoney's response, if such notice does not indicate
     an intention to correct such circumstances; or within a reasonable time
     after OnMoney fails to correct such circumstances, then Passione shall be
     considered to have been subject to a Constructive Discharge by OnMoney. For
     purposes of this Agreement, "Good Reason" shall mean, without Passione's
     express written consent (and except in consequence of a prior termination
     of Passione's employment), the occurrence of any of the following
     circumstances:

    (i)   A reduction by OnMoney in Passione's Salary to an amount that is less
          than required under paragraph 2(a).

    (ii)  The relocation of Passione's base office to an office that is more
          than 75 highway miles of Passione's base office on the Effective Date.

    (iii) The failure of OnMoney to obtain a satisfactory agreement from any
          successor to assume and agree to perform this Agreement.

     Passione's right to terminate his employment pursuant to this paragraph (d)
     shall not be affected by his incapacity due to Passione's Disability.
     Passione's continued employment shall not constitute consent to, or a
     waiver of rights with respect to, any circumstance constituting Good Reason
     hereunder.

(e)  Termination by Executive. Passione may terminate his employment hereunder
     at any time for any reason by giving OnMoney prior written Notice of
     Termination (as defined in paragraph 3(h)), which Notice of Termination
     shall be effective not less than 30 days

                                       7

<PAGE>   8
     after it is given to OnMoney, provided that nothing in this Agreement shall
     require Passione to specify a reason for any such termination. However, to
     the extent that the procedures specified in paragraph 3(d) are required,
     the procedures of this paragraph 3(e) may not be used in lieu of the
     procedures required under paragraph 3(d).

(f)  Non-Renewal of Agreement. Except as otherwise agreed to in writing by the
     parties, this Agreement shall not apply to employment after the end of the
     Agreement Term, however, non-renewal of this Agreement will not otherwise
     limit or interfere with the benefits which Passione has accrued under any
     welfare, pension or other plan as of the end of the Agreement Term.

(g)  Termination by Company. OnMoney may terminate Passione's employment
     hereunder at any time for any reason, by giving Passione prior Notice of
     Termination, which Notice of Termination shall be effective immediately, or
     such later time as is specified in such notice. OnMoney shall not be
     required to specify a reason for the termination under this paragraph 3(g),
     provided that termination of Passione's employment by OnMoney shall be
     deemed to have occurred under this paragraph 3(g) only if it is not for
     reasons described in paragraph 3(b), 3(c), 3(d), 3(e), or 3(f).
     Notwithstanding the foregoing provisions of this paragraph (g), if
     Passione's employment is terminated by OnMoney in accordance with this
     paragraph (g), and within a reasonable time period thereafter, it is
     determined by the Board that circumstances existed which would have
     constituted a basis for termination of Passione's employment for Cause in
     accordance with paragraph 3(c) (disregarding circumstances which could have
     been remedied if notice had been given in accordance with paragraph
     3(c)(i)), Passione's employment will be deemed to have been terminated for
     Cause in accordance with paragraph 3(c).

(h)  Notice of Termination. Any termination of Passione's employment by OnMoney
     or Passione (other than a termination pursuant to paragraph 3(a) or
     paragraph 3(f)) must be communicated by a written Notice of Termination to
     the other party hereto. For purposes of this Agreement, a "Notice of
     Termination" means a dated notice which indicates the Date of Termination
     (not earlier than the date on which the notice is provided), and which
     indicates the specific termination provision in this Agreement relied on
     and which sets forth in reasonable detail the facts and circumstances, if
     any, claimed to provide a basis for termination of Passione's employment
     under the provision so indicated.

(i)  Date of Termination. "Date of Termination" means the last day Passione is
     employed by OnMoney, provided that Passione's employment is terminated in
     accordance with the foregoing provisions of this paragraph 3.

(j)  Effect of Termination. If, on the Date of Termination, Passione is a member
     of Board of Directors of OnMoney or any of the Subsidiaries, or holds any
     other position with

                                       8
<PAGE>   9
     OnMoney and the Subsidiaries (other than the position described in
     paragraph 1(a)), Passione shall resign from all such positions as of the
     Date of Termination.

     4. Rights and Payments Upon Termination or Change in Control. Passione's
right to payment and benefits under this Agreement for periods after his Date of
Termination shall be determined in accordance with the following provisions of
this paragraph 4:

(a)  If Passione's Date of Termination occurs during the Agreement Term for any
     reason, OnMoney shall pay to Passione:

      (i) Passione's Salary for the period ending on the Date of Termination.

     (ii) Payment for unused vacation days, as determined in accordance with
          Company policy as in effect from time to time.

    (iii) If the Date of Termination occurs after the end of a performance
          period and prior to the payment of the performance bonus (as described
          in paragraph 2(b)), for the period, Passione shall be paid such bonus
          amount at the regularly scheduled time.

     (iv) Any other payments or benefits to be provided to Passione by OnMoney
          pursuant to any employee benefit plans or arrangements adopted by
          OnMoney, to the extent such amounts are due from OnMoney.

     Except as may otherwise be expressly provided to the contrary in this
     Agreement, nothing in this Agreement shall be construed as requiring
     Passione to be treated as employed by OnMoney for purposes of any employee
     benefit plan or arrangement following the date of Passione's Date of
     Termination.

(b)  If Passione's Date of Termination occurs during the Agreement Term under
     circumstances described in paragraph 3(a) (relating to Passione's death),
     paragraph 3(b) (relating to Passione's being Disabled), paragraph 3(c)
     (relating to Passione's termination for Cause), paragraph 3(e) (relating to
     Passione's resignation), then, except as otherwise expressly provided in
     this Agreement or otherwise agreed in writing between Passione and OnMoney,
     OnMoney shall have no obligation to make payments under the Agreement for
     periods after Passione's Date of Termination. If Passione's employment with
     OnMoney terminates after the end of the Agreement Term, OnMoney shall have
     no obligation to make payments for periods after Passione's Date of
     Termination.

(c)  If Passione's Date of Termination occurs during the Agreement Term under
     circumstances described in paragraph 3(d) (relating to Constructive
     Discharge) or

                                       9
<PAGE>   10
     paragraph 3(g) (relating to termination by OnMoney without Cause), then, in
     addition to the amounts payable in accordance with paragraph 4(a):

     (i)    If the termination of employment occurs prior to a Change in Control
            (as defined below) Passione shall receive from OnMoney for the
            period continuing through the later of (A) the second anniversary of
            the Effective Date, or (B) the first anniversary of the Date of
            Termination, the Salary amount described in paragraph 2(a), as in
            effect on his Date of Termination (the "Payment Period"), in monthly
            or more frequent installments as is required under that paragraph,
            and the bonus amount described in paragraph 2(b). The determination
            of the bonus payable for the performance period in which the Date of
            Termination occurs shall be based on actual performance for the
            entire period. The bonus payable for any performance period
            thereafter shall be at the same rate as the rate determined in
            accordance with the preceding sentence; provided, however, that the
            bonus for the performance period that includes the last day of the
            Payment Period shall be subject to a pro-rata reduction to reflect
            the portion of the performance period following such date. Payment,
            under this paragraph (i), of any bonus described in paragraph 2(b)
            shall be made at the regularly scheduled time for payment of such
            amounts to active employees. OnMoney's obligation to make payments
            under this paragraph (i) shall cease with respect to periods after
            the earlier to occur of the date of Passione's death, or a date, if
            any, of the breach by Passione of the provisions of paragraph 7 or
            paragraph 8.

     (ii)   If the Date of Termination of employment occurs within 2 years after
            a Change in Control (as defined in Exhibit A hereto) Passione shall
            receive from OnMoney for the period continuing through the second
            anniversary of the Date of Termination, the Salary amount described
            in paragraph 2(a), as in effect on his Date of Termination, in
            monthly or more frequent installments as is required under that
            paragraph, and the bonus amount described in paragraph 2(b). The
            determination of the bonus payable for the performance period in
            which the Date of Termination occurs shall be based on actual
            performance for the entire period. The bonus payable for any
            performance period thereafter shall be at the same rate as the rate
            determined in accordance with the preceding sentence; provided,
            however, that the bonus for the performance period that includes the
            second anniversary of the Date of Termination shall be subject to a
            pro-rata reduction to reflect the portion of the performance period
            following such anniversary. Payment under this paragraph (ii) of any
            bonus described in paragraph 2(b) shall be made at the regularly
            scheduled time for payment of such amounts to active employees.
            OnMoney's obligation to make payments under this paragraph (ii)
            shall cease with respect to periods after the earlier to occur of
            the date of Passione's

                                       10
<PAGE>   11
            death, or a date, if any, of the breach by Passione of the
            provisions of paragraph 7 or paragraph 8.

     (iii)  For such period of that time that Passione or any of his dependents
            is eligible for and elects COBRA continuation coverage (as described
            in section 4980B of the Internal Revenue Code of 1986, as amended
            (the "Code")) under any Company group health plan, OnMoney shall pay
            100% of the premiums necessary to maintain such COBRA continuation
            coverage, OnMoney's obligation to make payments under this paragraph
            (iv) shall cease with respect to periods after the earlier to occur
            of the date of Passione's death, or a date, if any, of the breach by
            Passione of the provisions of paragraph 7 or paragraph 8.

     (iv)   As of the Date of Termination (under this paragraph 4(c)), (A) all
            outstanding stock options to purchase shares of OnMoney stock then
            held by Passione which are not yet exercisable shall become fully
            exercisable and shall remain exercisable for the period as
            determined under the terms and condition of the applicable plan,
            and (B) with respect to paragraph 2(c), the Election Date shall be
            the Date of Termination, and the Ameritrade Option, if selected,
            will be fully vested and exercisable for the period as determined
            under the terms and conditions of the applicable Ameritrade plan.

(d)  Except as may be otherwise specifically provided in an amendment of this
     paragraph (d) adopted in accordance with paragraph 13, the Employee's
     rights under this paragraph 4 shall be in lieu of any benefits that may be
     otherwise payable to or on behalf of Passione pursuant to the terms of any
     severance pay arrangement of OnMoney or any Subsidiary or any other,
     similar arrangement of OnMoney or any Subsidiary providing benefits upon
     involuntary termination of employment.

(e)  If Passione's Date of Termination occurs after the end of the Agreement
     Term under circumstances described in paragraph 3(f) (relating to the
     termination of employment after the end of the Agreement Term) then,
     except as otherwise expressly provided in this Agreement, or otherwise
     agreed in writing between Passione and OnMoney, OnMoney shall have no
     obligation to make payments under the Agreement for periods after
     Passione's Date of Termination.

     5. Duties on Termination. Subject to the terms and conditions of this
Agreement, during the period beginning on the date of delivery of a Notice of
Termination, and ending on the Date of Termination, Passione shall continue to
perform his duties as set forth in this Agreement, and shall also perform such
services for OnMoney as are necessary and appropriate for a smooth transition to
Passione's successor, if any. Notwithstanding the foregoing provisions of this
paragraph 5, OnMoney may suspend Passione from performing his duties under this
Agreement

                                       11

<PAGE>   12
following the delivery of a Notice of Termination providing for Passione's
resignation, or delivery by OnMoney of a Notice of Termination providing for
Passione's termination of employment for any reason; provided, however, that
during the period of suspension (which shall end on the Date of Termination),
Passione shall continue to be treated as employed by OnMoney for other purposes,
and his rights to compensation or benefits shall not be reduced by reason of the
suspension.

     6. Mitigation and Set-Off. Passione shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise. OnMoney shall not be entitled to set off against the amounts
payable to Passione under this Agreement any amounts owed to OnMoney by
Passione, any amounts earned by Passione in other employment after termination
of his employment with OnMoney, or any amounts which might have been earned by
Passione in other employment had he sought such other employment.

     7. Noncompetition. While he is employed by OnMoney, and for a period of 12
months after termination of Passione's employment with OnMoney for any reason:

(a)  Passione shall not, without the express written consent of the Chairman,
     be employed by, serve as a consultant to, or otherwise assist or directly
     or indirectly provide services to a Competitor (defined below) if: (i) the
     services that Passione is to provide to the Competitor are the same as,
     or substantially similar to, any of the services that Passione provided to
     OnMoney or the Subsidiaries, and such services are to be provided with
     respect to any location in which OnMoney or a Subsidiary had material
     operations during the 12-month period prior to the Date of Termination,
     any location in which OnMoney or a Subsidiary had devoted material
     resources to establishing operations during the 12-month period prior to
     the Date of Termination, however, both parties agree that the above
     geographical limitations shall be interpreted to be any location in the
     United States in the event the Competitor generates in excess of 50% of
     its gross revenues from its Internet services; or (ii) the trade secrets,
     confidential information, or proprietary information (including, without
     limitation, confidential or proprietary methods) of OnMoney and the
     Subsidiaries to which Passione had access could reasonably be expected
     to benefit the Competitor if the Competitor were to obtain access to such
     secrets or information. For purposes of this paragraph (a), services
     provided by others shall be deemed to have been provided by Passione if
     Passione had material supervisory responsibilities with respect to the
     provision of such services.

(b)  Passione shall not, without the express written consent of the Chairman,
     solicit or attempt to solicit any party who is then or, during the
     12-month period prior to such solicitation or attempt by Passione was (or
     was solicited to become), a customer or supplier of OnMoney, provided that
     the restriction in this paragraph (c) shall not apply to any activity on
     behalf of a business that is not a Competitor.

                                       12
<PAGE>   13
(c)  Passione shall not, without the express written consent of the Chairman,
     solicit, entice, persuade or induce any individual who is employed by
     OnMoney or its Subsidiaries (or was so employed within 90 days prior to
     Passione's action) to terminate or refrain from renewing or extending such
     employment or to become employed by or enter into contractual relations
     with any other individual or entity other than OnMoney or its
     subsidiaries, and Passione shall not approach any such employee for any
     such purpose or authorize or knowingly cooperate with the taking of any
     such actions by any other individual or entity.

(d)  Passione shall not, without the express written consent of the Chairman,
     directly or indirectly own an equity interest in any Competitor (other
     than ownership of 1% or less of the outstanding stock of any corporation
     listed on the New York Stock Exchange or the American Stock Exchange or
     included in the NASDAQ System).

The term "Competitor" means any enterprise (including a person, firm or
business, whether or not incorporated) during any period in which it is
materially competitive in any way with OnMoney's business as an Internet based
financial services portal or with any other business in which OnMoney or any of
its Subsidiaries were engaged during the 12-month period prior to Passione's
termination of employment and from which OnMoney or its Subsidiary (as
applicable) either generated in excess of 5 percent of its gross revenue or
reflects a financial expenditure in excess of 5 percent of its gross revenue or
reflects a financial expenditure in excess of 5 percent of total expenses in the
prior 12-month period. Nothing in this paragraph 7 or paragraph 8 shall be
construed as limiting Passione's duty of loyalty to OnMoney, or any other duty
he may otherwise have to OnMoney, while he is employed by OnMoney. Nothing in
paragraphs 7, 8 or 9 shall be construed to adversely affect the rights that
OnMoney would possess in the absence of the provisions of such paragraphs.

If at any time any of the provisions of this paragraph 7 shall be determined to
be invalid or unenforceable by reason of being vague or unreasonable as to
duration, area, scope of activity or otherwise, then this paragraph 7 shall be
considered divisible (with the other provisions to remain in full force and
effect) and the invalid or unenforceable provisions shall become and be deemed
to be immediately amended to include only such time, area, scope of activity and
other restrictions, as shall be determined to be reasonable and enforceable by
the court or other body having jurisdiction over the matter, and Employee
expressly agrees that this Agreement, as so amended, shall be valid and biding
as though any invalid or unenforceable provision had not been included herein.

     8. Confidential Information. Passione agrees that:

(a)  Except as may be required by the lawful order of a court or agency of
     competent jurisdiction, except as necessary to carry out his duties to
     OnMoney and its Subsidiaries, or except to the extent that Passione has
     express authorization from OnMoney, Passione agrees to keep secret and
     confidential indefinitely, all Confidential Information, and not

                                       13
<PAGE>   14

    to disclose the same, either directly or indirectly, to any other person,
    firm, or business entity, or to use it in any way.

(b) To the extent that any court or agency seeks to have Passione disclose
    Confidential Information, he shall promptly inform OnMoney, and he shall
    take such reasonable steps to prevent disclosure of Confidential Information
    until OnMoney has been informed of such requested disclosure, and OnMoney
    has an opportunity to respond to such court or agency. To the extent that
    Passione obtains information on behalf of OnMoney or any of the Subsidiaries
    that may be subject to attorney-client privilege as to OnMoney's attorneys,
    Passione shall take reasonable steps to maintain the confidentiality of such
    information and to preserve such privilege.

(c) Nothing in the foregoing provisions of this paragraph 8 shall be construed
    so as to prevent Passione from using, in connection with his employment for
    himself or an employer other than OnMoney or any of the Subsidiaries,
    knowledge which was acquired by him during the course of his employment with
    OnMoney and the Subsidiaries, and which is generally known to persons of his
    experience in other companies in the same industry.

(d) For purposes of this Agreement, the term "Confidential Information" shall
    include all non-public information (including, without limitation,
    information regarding litigation and pending litigation) concerning OnMoney
    and the Subsidiaries which was acquired by or disclosed to Passione during
    the course of his employment with OnMoney, or during the course of his
    consultation with OnMoney following his Date of Termination (regardless of
    whether consultation is pursuant to paragraph 9). For purposes of this
    Agreement, the term "Confidential Information" shall also include all
    non-public information concerning any other company that was shared with
    OnMoney or a Subsidiary subject to an agreement to maintain the
    confidentiality of such information.

(e) This paragraph 8 shall not be construed to unreasonably restrict Passione's
    ability to disclose confidential information in an arbitration proceeding
    or a court proceeding in connection with the assertion of, or defense
    against any claim of breach of this Agreement in accordance with paragraph
    11. If there is a dispute between OnMoney and Passione as to whether
    information may be disclosed in accordance with this paragraph (e), the
    matter shall be submitted to the arbitrators or the court (whichever is
    applicable) for decision.

    9. Assistance with Claims.  Passione agrees that, for the period beginning
on the Effective Date, and continuing for a reasonable period after Passione's
Date of Termination, Passione will provide reasonable assistance to OnMoney and
the Subsidiaries in defense of any claims that may be made against OnMoney and
the Subsidiaries, and will provide reasonable assistance to OnMoney and the
Subsidiaries in the prosecution of any claims that may be made

                                       14
<PAGE>   15
by OnMoney or the Subsidiaries, to the extent that such claims may relate to
services performed by Passione for OnMoney and the Subsidiaries. Passione agrees
to promptly inform OnMoney if he becomes aware of any lawsuits involving such
claims that may be filed against OnMoney or any Subsidiary. OnMoney agrees to
reimburse Passione for all of Passione's reasonable out-of-pocket expenses
associated with such assistance, including travel expenses. For periods after
Passione's employment with OnMoney terminates, OnMoney agrees to provide
reasonable compensation to Passione for such assistance. Passione also agrees to
promptly inform OnMoney if he is asked to assist in any investigation of OnMoney
or the Subsidiaries (or their actions) that may relate to services performed by
Passione for OnMoney or the Subsidiaries, regardless of whether a lawsuit has
then been filed against OnMoney or the Subsidiaries with respect to such
investigation. For any required assistance under this paragraph, OnMoney shall
take into consideration Passione's then current employment situation and all
other relevant personal factors as presented by Passione in order to determine
what is reasonable in the given circumstances.

     10. Representation of Passione. Passione represents that he is not now a
party to, and has never been a party to, any non-competition agreement or other
agreement with any party (other than OnMoney), restricting or purporting to
restrict Passione's right to perform any services, whether or not such
agreement is applicable to Passione's performance of services for OnMoney under
this Agreement, except for any such agreement a true and complete copy of which
Passione has delivered to OnMoney together with evidence of its expiration or
evidence of the other party's irrevocable waiver of its provisions restricting
or purporting to restrict Passione's right to perform services for OnMoney as
provided herein.

     11. Equitable Remedies. Passione acknowledges that OnMoney would be
irreparably injured by a violation of paragraph 7 or 8, and he agrees that
OnMoney, in addition to any other remedies available to it for such breach or
threatened breach, shall be entitled to a preliminary injunction, temporary
restraining order, or other equivalent relief, restraining Passione from any
actual or threatened breach of either paragraph 7 or paragraph 8. If a bond is
required to be posted in order for OnMoney to secure an injunction or other
equitable remedy, the parties agree that said bond need not be more than a
nominal sum.

     12. Nonalienation. The interests of Passione under this Agreement are not
subject in any manner to anticipation, alienation, sale, transfer, assignment,
pledge, encumbrance, attachment, or garnishment by creditors of Passione or
Passione's beneficiary.

     13. Amendment. This Agreement may be amended or canceled only by mutual
agreement of the parties in writing without the consent of any other person. So
long as Passione lives, no person, other than the parties hereto, shall have
any rights under or interest in this Agreement or the subject matter hereof.

                                       15
<PAGE>   16

     14. Applicable Law.  The provisions of this Agreement shall be construed in
accordance with the laws of the State of New York, without regard to the
conflict of law provisions of any state. All disputes shall be arbitrated or
litigated (whichever is applicable) in White Plains, N.Y.

     15. Severability.  The invalidity or unenforceability of any provision of
this Agreement will not affect the validity or enforceability of any other
provision of this Agreement, and this Agreement will be construed as if such
invalid or unenforceable provision were omitted (but only to the extent that
such provision cannot be appropriately reformed or modified).

     16. Waiver of Breach.  No waiver by any party hereto of a breach of any
provision of this Agreement by any other party, or of compliance with any
condition or provision of this Agreement to be performed by such other party,
will operate or be construed as a waiver of any subsequent breach by such other
party of any similar or dissimilar provisions and conditions at the same or any
prior or subsequent time. The failure of any party hereto to take any action by
reason of such breach will not deprive such party of the right to take action at
any time while such breach continues.

     17. Successors.  This Agreement shall be binding upon, and inure to the
benefit of, OnMoney and its successors and assigns and upon any person
acquiring, whether by merger, consolidation, purchase of assets or otherwise,
all or substantially all of OnMoney's assets and business, and the successor
shall be substituted for OnMoney under this Agreement.

     18. Notices.  Notices and all other communications provided for in this
Agreement shall be in writing and shall be delivered personally or sent by
registered or certified mail, return receipt requested, postage prepaid, or sent
by facsimile or prepaid overnight courier to the parties at the addresses set
forth below (or such other addresses as shall be specified by the parties by
like notice). Such notices, demands, claims and other communications shall be
deemed given:

(a)  in the case of delivery by overnight service with guaranteed next day
     delivery, the next day or the day designated for delivery;

(b)  in the case of certified or registered U.S. mail, five days after deposit
     in the U.S. mail; or

(c)  in the case of facsimile, the date upon which the transmitting party
     received confirmation of receipt by facsimile, telephone or otherwise;

provided, however, that in no event shall any such communications be deemed to
be given later than the date they are actually received. Communications that
are to be delivered by the U.S. mail or by overnight service are to be
delivered to the addresses set forth below:

to OnMoney

                                       16
<PAGE>   17
OnMoney Financial Services Corp.
C/O Ameritrade Holding Corporation
4211 S. 102nd Street
Omaha, NE 68127

or to Passione:

Vincent Passione
117 Old Denville Road
Boonton Township, NJ 07005

All notices to OnMoney shall be directed to the Chairman of Ameritrade, with a
copy to the Secretary of Ameritrade. Each party, by written notice furnished to
the other party, may modify the applicable delivery address, except that notice
of change of address shall be effective only upon receipt.

     19. Arbitration of All Disputes. Any controversy or claim arising out of or
relating to this Agreement (or the breach thereof) shall be settled by final,
binding and non-appealable arbitration in White Plains, NY by one arbitrator.
Except as otherwise expressly provided in this paragraph 19, the arbitration
shall be conducted in accordance with the Commercial Arbitration Rules of the
American Arbitration Association (the "Association") then in effect. If the
parties cannot agree on the arbitrator within 30 days of the request for
arbitration, then the arbitrator shall be appointed by the Association. This
paragraph 19 shall not be construed to limit OnMoney's right to obtain relief
under paragraph 11 with respect to any matter or controversy subject to
paragraph 11, and, pending a final determination by the arbitrator with respect
to any such matter or controversy, OnMoney shall be entitled to obtain any such
relief by direct application to a court of law, without being required to first
arbitrate such matter or controversy. Any and all proceedings, hearings,
findings or any other record of a dispute under this paragraph 19 shall be
private and shall be held in the strictest confidence of all parties so
involved, including but not limited to the parties to this Agreement and any
appointed arbitrators.

     20. Survival of Agreement. Except as otherwise expressly provided in this
Agreement, the rights and obligations of the parties to this Agreement shall
survive the termination of Passione's employment with OnMoney.

     21. Entire Agreement. Except as otherwise noted herein or in any separation
agreement subsequently entered into by Passione and OnMoney, this Agreement,
including any Exhibit(s) attached hereto, constitutes the entire agreement
between the parties concerning the subject matter hereof and supersedes all
prior and contemporaneous agreements, if any, between the parties relating to
the subject matter hereof.

                                       17
<PAGE>   18
     22. Prior Agreements. Passione represents that, he has not signed, and is
not currently subject to, any written agreement or policy that restricts his
ability to be employed by OnMoney, to compete with a former employer, or to use
information, and that his employment by OnMoney will not violate the terms of
any policy of any prior employer of Passione regarding competition or
confidentiality.

     IN WITNESS THEREOF, Passione has hereunto set his hand, and OnMoney has
caused these presents to be executed in its name and on its behalf, and its
corporate seal to be hereunto affixed, all as of the day and year first above
written.

                                        /s/ VINCENT PASSIONE
                                        ---------------------------------------
                                        Vincent Passione

                                        OnMoney Financial Services Corp.

                                        By /s/ JOHN J. RICKETTS
                                          ------------------------------------
                                        Its Chairman and CEO
                                           -----------------------------------

ATTEST:

--------------------
      (Seal)

                                       18
<PAGE>   19

                                   Exhibit A
                        Definition of Change in Control

     For purposes of the Agreement, a "Change in Control" shall mean the
earliest to occur of any one of the following events:

(1) any "Person", as such term is used in Section 13(d) and 14(d) of the
    Securities Exchange Act of 1934, as amended (the "Exchange Act") (other than
    OnMoney, Passione, any corporation owned, directly or indirectly, by the
    stockholders of OnMoney in substantially the same proportions as their
    ownership of stock of OnMoney, and any trustee or other fiduciary holding
    securities under an employee benefit plan of OnMoney), becomes the
    "beneficial owner" (as defined in Rule 13d-3 promulgated under the Exchange
    Act), of 30% or more of the combined voting power of OnMoney's then
    outstanding securities having the right to vote for the election of
    directors ("Voting Stock");

(2) the majority of the Board of Directors of OnMoney (the "Board") does not
    consist of individuals who are Incumbent Directors, which term means the
    members of the Board on the date of this Agreement; provided that any person
    becoming a director subsequent to such date whose election or nomination for
    election was supported by three-quarters of the directors who then comprised
    the Incumbent Directors shall be considered to be an Incumbent Director;

(3) OnMoney adopts any plan of liquidation for the distribution of all or
    substantially all of its assets;

(4) OnMoney merges with or into another company, or all or substantially all of
    the assets or business of OnMoney is disposed of pursuant to a merger,
    consolidation or other transaction (unless the shareholders of OnMoney
    immediately prior to such merger, consolidation or other transaction
    beneficially own, directly or indirectly, in substantially the same
    proportion as they owned the Voting Stock of OnMoney, all of the Voting
    Stock or other ownership interest of the entity or entities, if any, that
    succeed to the business of OnMoney); or

(5) OnMoney combines with any other company and is the surviving corporation
    but, immediately after the combination, the shareholders of OnMoney
    immediately prior to the combination hold, directly or indirectly, 50% or
    less of the Voting Stock of the combined company (there being excluded from
    the number of shares held by such shareholders, but not from the Voting
    Stock of the combined company, any shares received by affiliates of such
    other company in exchange for stock of such other company).

                                       19
<PAGE>   20
Notwithstanding the forgoing, a Change in Control shall not include an initial
public offering of OnMoney's securities (an "Initial Public Offering") or any
associated changes due to the Initial Public Offering which would otherwise
constitute a Change in Control based on the above definition, if such
associated changes are directly related to, in contemplation of or a result of
the Initial Public Offering.

Once a Change in Control has occurred, no subsequent event shall be considered
a Change in Control for purposes of this Agreement.

                                       20
<PAGE>   21

                                  ADDENDUM TO
                              EMPLOYMENT AGREEMENT
                                    BETWEEN
                                 VINCE PASSIONE
                                      AND
                        ONMONEY FINANCIAL SERVICES CORP.

     WHEREAS, Vincent Passione ("Passione") and OnMoney Financial Services
Corp. ("OnMoney"), made and entered into as of August 2, 1999 (the "Effective
Date") an employment agreement (the "Agreement");

     WHEREAS, the parties desire to have this addendum attached to and made
part of the Agreement;

     NOW, THEREFORE, in consideration of the mutual covenants of the parties,
the following is made part of the Agreement:

1.   Paragraph 18. Notices. shall be modified in its entirety to read as
     follows:

     "Notices.  Notices and all other communications provided for in this
     Agreement shall be in writing and shall be delivered personally or sent
     by registered or certified mail, return receipt requested, postage
     prepaid, or sent by facsimile or prepaid overnight courier to the parties
     at the addresses set forth below (or such other addresses as shall be
     specified by the parties by like notice). Such notices, demands, claims
     and other communications shall be deemed given:

     1.   in the case of delivery by overnight service with guaranteed next
          day delivery, the next day or the day designated for delivery;

     2.   in the case of certified or registered U.S. mail, five days after
          deposit in the U.S. mail; or

     3.   in the case of facsimile, the date upon which the transmitting party
          received confirmation of receipt by facsimile, telephone or otherwise;

     provided, however, that in no event shall any such communications be
     deemed to be given later than the date they are actually received.
     Communications that are to be delivered by the U.S. mail or by overnight
     service are to be delivered to the addresses set forth below:

<PAGE>   22

     to OnMoney

     OnMoney Financial Services Corp.
     C/O Chairman of the Board of Directors
     4211 S. 102nd Street
     Omaha, NE 68127

     or to Passione:

     Vincent Passione
     117 Old Denville Road
     Boonton Township, NJ 07005

     Prior to an Initial Public Offering, all notices to OnMoney shall be
     directed to the attention of the Chairman of the Board of Directors of
     Ameritrade, with a copy to the Secretary of Ameritrade. Subsequent to an
     Initial Public Offering, all notices to OnMoney shall be directed to the
     attention of the Chairman of the Board of Directors of OnMoney, with a
     copy to the Secretary of OnMoney. Each party, by written notice furnished
     to the other party, may modify the applicable delivery address, except
     that notice of change of address shall be effective only upon receipt."

2.   With respect to the Ameritrade Option, as provided for in paragraph
     2(c)(iii) of the Agreement, the number of shares subject to purchase,
     which was set at 25,000, shall be adjusted at the time of grant to
     reflect the stock split that was effective for shareholders of record
     as of June 11, 1999.

This addendum shall be effective as of the Effective Date of the Agreement.

                              /s/ VINCENT PASSIONE
                              --------------------------------
                              Vincent Passione

                              OnMoney Financial Services Corp.

                              By  /s/ JOHN J. RICKETTS
                                 -------------------------------
                              Its  Chairman & CEO
                                 -------------------------------

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00019-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00019-of-00352.parquet"}]]