<Page>

                                                            Exhibit 10-11

Portions of this exhibit have been omitted pursuant to a request for
confidential treatment filed with the Securities and Exchange Commission. The
omissions have been indicated by asterisks ("*****"), and the omitted text has
been filed separately with the Securities and Exchange Commission.


    AGREEMENT ON DEVELOPMENT AND MAINTENANCE BETWEEN EURONEXT AND THE CME

This agreement is made between Euronext, a cooperative corporation organized and
existing under the laws of the Kingdom of Belgium, with its principal place of
business at 39, rue Cambon 75001 Paris, France and the Chicago Mercantile
Exchange ("CME"), a not-for-profit corporation existing and organized under the
laws of the State of Illinois, with its principal place of business at 30 South
Wacker Drive, Chicago, Illinois, U.S.A.

1.    PURPOSE OF THE AGREEMENT

      This Agreement is designed to describe the maintenance, support and
      development services provided to the CME by Euronext, a corporation that
      specializes in the conception and development of trading systems and in
      the marketing of these systems to exchanges and other financial
      institutions throughout the world. This Agreement also sets out the
      general procedures to be followed by the CME in identifying modifications
      to the Central Services System, the HUB API or other systems to meet its
      business needs and in submitting those needs to Euronext for its
      development.

2.    DEFINITIONS

      A.    ANNUAL CME DEVELOPMENT PLAN means the plan described in paragraph
            4(B) below.

      B.    ANNUAL COMMON DEVELOPMENT PLAN means the plan described in paragraph
            3(B) of the Agreement on GLOBEX-Registered Trademark- Common
            Development between SBF and the CME.

      C.    BUSINESS FUNCTIONAL SPECIFICATIONS are a written expression of the
            general business requirements and operation of a project, but do not
            include a detailed technical description of each function or system
            included in the project.

      D.    CENTRAL SERVICES SOFTWARE means the software described in Exhibit 5,
            as it currently exists or is later enhanced, that is licensed to CME
            pursuant to the NSC License.

      E.    CENTRAL SERVICES SYSTEM has the meaning given to that term in the
            NSC License.


                                       1

<Page>

      F.    CLASS 1 ERROR. An error will be classified as a Class 1 Error if the
            Central Services Software cannot process critical functions in CME's
            commercial production environment. Critical functions include any
            function that, if not processed correctly, will result in a halt to
            trading in one of the markets being served or will result in an
            inability to clear trades executed in one of the markets being
            served.

      G.    CLASS 2 ERROR. An error will be classified as a Class 2 Error if the
            Central Services Software fails to meet the specifications documents
            in a way that makes continued use of the Central Services Software
            inconvenient in any material respect or substantially reduces its
            value to CME.

      H.    CLASS 3 ERROR.  All other errors that do not have the
            consequences defined for Class 1 Errors and Class 2 Errors.

      I.    COMMON DEVELOPMENTS means those major initiatives and projects that
            constitute "common developments" as that term and any payment
            obligations are defined in the GLOBEX MOU.

      J.    COMMON DEVELOPMENT STEERING COMMITTEE means the steering committee
            identified in paragraph 3(A) of the Agreement on GLOBEX-Registered
            Trademark- Common Development between SBF and the CME.

      K.    COMMON SOFTWARE shall mean the New York Stock Exchange's software
            used as a utility to develop and operate the Central Services
            Software.

      L.    CONFIDENTIAL EXCHANGE INFORMATION means any non-public
            information relating to the SBF's or CME's internal business
            operations including, but not limited to, information about
            exchange members or member firms, their trading positions and
            their trading history; information relating to each exchange's
            independent software vendors, including their names, technical
            requirements and business plans; financial information relating
            to an exchange's budget or its actual expenditures or potential
            expenditures on non-Common Development work; business plans,
            technology plans and marketing strategies that are not included
            in the final Annual Common Development Plan; and other
            information relating to the core trading and clearing work of
            either exchange.

      M.    EURONEXT RESOURCE COMMITMENT means the Euronext staff resources
            identified in the Annual CME Development Plan as described in
            paragraph 4.

      N.    GLOBEX MOU means the GLOBEX Alliance Memorandum of Understanding, to
            be signed February 8, 1999 by the CME, SBF and SIMEX, and any later
            definitive agreement arising from that MOU.

      O.    HUB API means the Basic API and the Enhanced API as those terms
            are defined in the HUB API Co-Ownership Agreement.



                                       2

<Page>


      P.    HUB API CO-OWNERSHIP AGREEMENT means the Basic and Enhanced
            Application Programming Interface ("API") Ownership and Development
            Agreement, signed by CME and Euronext on February 8, 1999.

      Q.    MAXIMUM RESOURCE COMMITMENT means 2,640 days of work each year.

      R.    MINIMUM RESOURCE COMMITMENT means 1,320 days of work each year.

      S.    NEW VERSION means the next generation of Central Services
            Software containing significant functional or technical upgrades.

      T.    NEW RELEASE means changes in a version of the Central Services
            Software correcting defaults and introducing some minor functional
            or technical enhancements, without changes in the Central Services
            Software architecture.

      U.    NSC LICENSE means the Central Services System (NSC) Software License
            and Development Agreement between the CME and SBF Bourse de Paris,
            dated June 5, 1997, which was later assigned to Euronext.

      V.    PERSON means an individual, corporation, partnership, trustee,
            trust, regulatory body or agency, government or governmental agency
            or other entity (however designated or constituted) and any
            unincorporated organization.

      W.    SUPPLIER shall mean any person, firm or corporation that supplies
            materials or any services, necessary for the execution of all or
            part of this Agreement, under contract with Euronext.

      X.    SYNTEC INDEX shall mean the index published by the Federation
            Syntec, 3 rue Leon Bonnat- 75016 Paris.

3.    MAINTENANCE AND SUPPORT SERVICES

      A.    DESCRIPTION OF MAINTENANCE SERVICES PROVIDED

            Throughout the term of this Agreement, Euronext will provide the
            following maintenance services to the CME.

            1.    HOT-LINE SUPPORT.  If the CME experiences a problem with
                  the daily operation of the Central Services Software, the
                  HUB API or any other system later covered by this
                  Agreement, CME shall be entitled to call the Euronext
                  Hot-Line. The Euronext Hot-Line telephone number and
                  working hours are described in Exhibit 1. Euronext may
                  change its Hot-Line telephone number or provide additional
                  numbers by giving written notice to the CME. Euronext
                  confirms that its Hot-Line will be answered in person (not
                  by voice mail or another sort of answering system) and that
                  CME's calls will



                                       3

<Page>


                  not be placed on hold for more than one minute before CME
                  is able to talk with a qualified Euronext representative
                  about a problem.

                  Attached to this Agreement as Exhibit 2 is a list of up to
                  seven (7) CME representatives entitled to call the Euronext
                  Hot-Line. The CME can change this list by giving written
                  notice to Euronext.

                  After CME makes a call to the Hot-Line, CME shall confirm the
                  call within 30 minutes after the call by faxing an error
                  report indicating the number, date and hour of the call, an
                  accurate and reasonably detailed description of the problem
                  encountered and a fair classification of the impact on CME
                  according to the error correction levels described in
                  paragraph 3 (A)(2), below.

                  Upon request from Euronext, the CME shall, at its own cost,
                  provide to a designated Euronext representative any requested
                  information, such as paper or electronic files relating to the
                  error and access to the production environment.

                  CME's working day schedule is defined in Exhibit 3. Any update
                  to this schedule shall be communicated to Euronext with at
                  least two weeks' prior notice, except that CME shall give
                  Euronext at least one month's notice of any changes to the
                  schedule for the months of July and August.

            2.    ERROR CORRECTION

                  (a)   For a Class 1 Error, a Euronext representative
                        qualified to address the specific problem at issue
                        shall contact CME within 15 minutes after receiving
                        the initial Hot-Line call and shall take immediate
                        and continuous action (beginning in no case later
                        than one hour after receiving the initial Hot-Line
                        call) to correct the reported error or to provide a
                        temporary circumvention. Euronext shall make all
                        reasonable efforts to correct the reported error or
                        to provide temporary circumvention within three hours
                        after receiving the initial Hot-Line call. Throughout
                        Euronext's work, it shall keep CME regularly informed
                        of its progress.

                  (b)   For a Class 2 Error, Euronext shall respond to the
                        error report within two business days and make all
                        reasonable efforts to provide a correction or a
                        reasonable circumvention within five business days
                        after receiving the initial Hot-Line call. Throughout
                        Euronext's work, it shall keep CME informed of its
                        progress through verbal progress reports given at
                        least once every 48 hours.


                                       4

<Page>

                  (c)   For a Class 3 Error, Euronext shall make all
                        reasonable efforts to provide correction or a
                        reasonable circumvention within two months.
                        Throughout Euronext's work, it shall keep CME
                        informed of its progress through written progress
                        reports delivered every other Monday after CME's
                        initial Hot-Line call or through another reporting
                        mechanism identified by CME.

            3.    EMERGENCY ON-SITE INTERVENTION. In the event that a Class 1
                  Error or Class 2 Error cannot be solved through hot-line
                  intervention or remote diagnostic and intervention methods,
                  CME and Euronext may jointly decide that an intervention of
                  Euronext staff is required at CME's site.

                  In such case, Euronext shall take immediate action to provide
                  the appropriate resources at CME's site. CME shall reimburse
                  Euronext for the travel and living expenses of its
                  representatives as described in paragraph 3(D)(4), but shall
                  not be required to make further payment to Euronext for these
                  emergency on-site services, unless it is later determined that
                  the error was not caused by the Central Services Software, the
                  HUB API or any other system covered by the Agreement. If the
                  error is later determined to be caused by a system that is not
                  covered by the Agreement, the CME shall compensate Euronext
                  for its efforts at a rate of ***** per person per day (in
                  addition to the travel and lodging expenses already reimbursed
                  as required above).

            4.    DELIVERY OF NEW RELEASES.  At CME's request, Euronext shall
                  deliver to CME, at no additional cost to the CME, New
                  Releases for the Central Services Software that are
                  produced at the software development base in Paris;
                  provided, however, that the CME must pay any additional
                  costs associated with any on-site intervention work
                  authorized pursuant to paragraph 3(C). CME is responsible
                  for the installation of any New Releases at CME's site.

            5.    CONTRACT MANAGEMENT. All issues related to the maintenance
                  provided in this Agreement shall be managed by a Euronext
                  account manager, designated from time to time by Euronext who
                  shall be the contact person with the CME. The name and phone
                  number of the Euronext account manager are provided in Exhibit
                  4.

            6.    MAINTENANCE FOR LATER ENHANCEMENTS OR MODIFICATIONS. In
                  exchange for the increased fees described in paragraph
                  3(D)(3) below, Euronext will provide the maintenance
                  services described in this Agreement for any modifications
                  or enhancements to the Central Services Software and the
                  HUB API and for any other



                                       5

<Page>


                  development work provided under this Agreement. These
                  maintenance obligations will begin not later than the end
                  of the 90-day warranty period relating to that work. When a
                  new project becomes included under the maintenance
                  provisions of this Agreement, the parties will revise, and
                  sign, Exhibit 5 accordingly.

      B.    MAINTENANCE SERVICES NOT PROVIDED

            Euronext shall provide the services described in paragraph 3(A)
            above except when: (1) the error originates from a system other than
            the Central Services Software, the HUB API or any other system
            covered by this Agreement; (2) the error is due to the usage of the
            Central Services Software without respecting the environment
            prerequisite as described in the installation manual or any
            contractual document; (3) no maintenance agreement exists between
            CME and SIAC concerning the Common Software; (4) the error arises
            from any changes to the Central Services Software or HUB API source
            code that has not been approved by Euronext; or (5) the error arises
            from any significant modifications made by the CME, to the
            configuration or environment of the Central Services Software or the
            HUB API or to the configuration or environment specified for any
            later project at the time of its delivery about which Euronext has
            either not received notice or has confirmed that its maintenance
            obligations cannot continue if the changes are made. (For purposes
            of this Agreement, extensions built on top of a system will be
            considered a modification to the configuration or environment of
            that system). The CME will provide notice to Euronext, through a
            mutually-agreed upon mechanism, of all significant changes described
            above. If Euronext believes the proposed change will cause its
            maintenance obligations to end, it will so notify the CME within
            five (5) business days. If CME does not receive any notice within
            this five-day period, Euronext will be deemed to have approved the
            change; provided, however, that Euronext can later notify CME that a
            previously-approved change cannot prospectively receive maintenance
            support. Euronext and the CME will work together to jointly agree
            upon specific guidelines for identifying the types of significant
            changes that must be reported to Euronext and that might cause
            Euronext to end its maintenance obligations. That set of guidelines
            will be finalized and attached as Exhibit 6 to this Agreement no
            later than March 12, 1999.

      C.    DESCRIPTION OF SUPPORT SERVICES PROVIDED

            If the CME asks Euronext to provide additional support services that
            relate to the Central Services Software, the HUB API or any other
            project developed under this Agreement and that are not covered by
            paragraph 3(A) above or any development arrangement described in
            paragraph 4 below, Euronext shall make all reasonable efforts to
            provide this service. These services shall be charged to CME at a
            rate of ***** per person per



                                       6

<Page>


            day and CME shall reimburse Euronext for the travel and living
            expenses of its representatives as described in paragraph 3(D)(4).

      D.    MAINTENANCE FEES AND OTHER COSTS

            1.    NSC MAINTENANCE FEES. Euronext shall perform the maintenance
                  services described in paragraph 3(A) above, during the period
                  from January 1, 1999 through December 31, 1999, in return for
                  the payment of a fixed annual fee of *****. The CME shall make
                  this payment no later than thirty (30) days after receiving an
                  appropriate invoice from Euronext.

            2.    HUB API MAINTENANCE FEES.  Euronext shall perform the
                  maintenance services described in paragraph 3(A) above,
                  beginning on the first day after the 90-day warranty period
                  for the HUB API expires and ending on December 31, 1999, in
                  return for the payment of a pro-rated portion of the annual
                  fee of *****. This pro-rated fee will be calculated in a
                  way to ensure that the CME is paying only for the portion
                  of the year that remains after the 90-day warranty period
                  has expired. The CME shall make this payment no later than
                  thirty (30) days after receiving an appropriate invoice
                  from Euronext.

            3.    ANNUAL FEE INCREASES

                  Each additional year during the Term of this Agreement, the
                  annual maintenance fee shall be adjusted in the following
                  ways:

                  (a)   The maintenance fee shall be adjusted to reflect the
                        increases in the Syntec Index between the first and last
                        day of each calendar year.

                  (b)   The maintenance fee shall also be adjusted, at the
                        beginning of each calendar year and no more than
                        twice during each calendar year of the Agreement to
                        reflect an additional amount equal to ***** of the
                        difference between the value of the Central Services
                        Software with any New Version purchased by the CME or
                        new project completed pursuant to a work order under
                        this Agreement and the value of the Central Services
                        Software as it existed immediately prior to the
                        release or completion of the project. For purposes of
                        this Agreement, the parties recognize that the
                        Central Services Software had a value, as of December
                        31, 1998, of *****. The parties also agree that, for
                        the purpose of identifying the additional maintenance
                        fee related to the HUB API, they will use the
                        estimated value of a license, which is *****. These
                        New



                                       7

<Page>


                        Version or new project-related increases shall be
                        prorated so that the CME pays the increased fee only
                        for the portion of the year that remains after the
                        New Version has been released or the 90-day warranty
                        period associated with a new project has expired.

            4.    EURONEXT TRAVEL AND LIVING EXPENSES. CME agrees that it shall
                  be responsible for the full reimbursement of transportation
                  expenses (business class airfare on airlines), as well as
                  payment of ***** per person per day for the accommodation and
                  related expenses of Euronext consultants and technicians
                  working in Chicago to perform services under this Agreement.

                  Euronext shall be responsible for purchasing and making the
                  appropriate hotel and travel reservations. Euronext shall
                  submit to the CME a written invoice for payment of these
                  expenses and must attach receipts showing the airfare
                  associated with each person's travel.

4.    SERVICES PROVIDED UNDER THE ANNUAL CME DEVELOPMENT PLAN

      A.    EURONEXT RESOURCE COMMITMENT

            During each year of the Agreement, CME shall be entitled to require
            Euronext to provide either development work associated with the
            Annual CME Development Plan or training specified by the CME for the
            number of days (in 220-day increments) that is not less than the
            Minimum Resource Commitment and not more than the Maximum Resource
            Commitment. CME shall have the right, upon giving 120 days' prior
            written notice to Euronext, to increase the initial commitment level
            identified in each year's Annual CME Development Plan up to the
            Maximum Resource Commitment. If the CME requests that Euronext
            perform development work or training that exceeds the Maximum
            Resource Commitment for the year, Euronext shall provide those
            services on a reasonable efforts basis.

            The CME shall pay Euronext ***** each year for the Minimum Resource
            Commitment and shall pay Euronext an additional ***** for each
            additional 220 days of work required by the Annual CME Development
            Plan. The ***** figure will be pro-rated, if the CME increases the
            Euronext Resource Commitment as permitted above, so that the CME
            pays only for the portion of the year after Euronext has notified
            CME that these additional resources are available. These amounts
            shall be adjusted each year to reflect the increases in the Syntec
            Index between the first and last days of each year. CME shall make
            these payments in four equal installments during the first ten (10)
            days of each calendar quarter


                                       8

<Page>

            throughout the year; provided, however, that the payment for the
            first quarter of 1999 shall be made, based on an assumption that
            the Annual CME Development Plan will require at least the Minimum
            Resource Commitment, no later than February 18, 1999. If the CME
            increases the Euronext Resource Commitment as permitted above,
            the CME's remaining payment installments shall be increased
            correspondingly to account for the prospectively increased costs.
            CME understands that any part of the Euronext Resource Commitment
            that remains unused at the end of the year will be forfeited.

      B.    PREPARATION OF THE ANNUAL CME DEVELOPMENT PLAN

            1.    PRELIMINARY DRAFT OF THE ANNUAL CME DEVELOPMENT PLAN. No later
                  than October 1 of each year, Euronext will provide the CME
                  with a preliminary description of its planned development work
                  for the next year.

                  No later than five (5) business days after October 15 of each
                  year, the CME will provide Euronext with a preliminary draft
                  of the Annual CME Development Plan for the upcoming year. This
                  preliminary draft will include: (a) an overview of the CME's
                  proposed project development and training needs and (b) a date
                  for the necessary completion of each project. Within fifteen
                  (15) business days, Euronext will review this preliminary
                  draft and provide the CME with estimates of the number of days
                  needed to complete each project. Both Euronext and the CME
                  understand that these preliminary plans and estimates may
                  change before the Annual CME Development Plan is finalized.
                  Unless otherwise agreed by the project management committee,
                  both the CME and Euronext will bear their own costs associated
                  with the preparation and review of the preliminary draft
                  described in this paragraph.

            2.    FINAL VERSION OF THE ANNUAL CME DEVELOPMENT PLAN.  No later
                  than January 15 of each year (March 31, in 1999), the CME
                  shall provide to Euronext a revised version of the Annual
                  CME Development Plan. This version of the plan shall
                  include: (a) the Business Functional Specifications for
                  each project then listed in the plan; (b) a description of
                  any training needed during the year; (c) a date for the
                  necessary completion of each project or training session;
                  (d) an identification of any portion of the Euronext
                  Resource Commitment that the CME wants to use to defray
                  cost sharing obligations with respect to Common
                  Developments; and (e) a description of any New Versions it
                  wants to incorporate during the year. Euronext shall review
                  this revised version of the plan and, within fifteen (15)
                  business days, provide the CME with a reasonable estimate
                  of the Euronext Resource Commitment required for each
                  project or training session.  No later than



                                        9

<Page>


                  February 15 of each year, the CME shall incorporate the
                  Euronext estimates into its plan and distribute a final
                  version of the plan to Euronext. Unless otherwise agreed by
                  the project management committee, both the CME and Euronext
                  will bear their own costs associated with the preparation
                  and review of the final version described in this paragraph.

                  The CME can revise this plan before a work order has been
                  issued, in its sole discretion, at any time throughout the
                  year by notifying Euronext of the modifications.


      C.    EURONEXT'S ROLE IN THE PREPARATION OF THE ANNUAL COMMON
            DEVELOPMENT PLAN

            1.    PRELIMINARY DRAFT OF THE ANNUAL COMMON DEVELOPMENT PLAN.
                  No later than five (5) business days after October 15 of
                  each year, the CME, acting jointly wish SBF, will provide
                  Euronext with a preliminary draft of the Annual Common
                  Development Plan for the upcoming year. This preliminary
                  draft will include: (a) an overview of the proposed Common
                  Development needs; and (b) a requested date for the
                  necessary completion of each project.

                  Within fifteen (15) business days, Euronext will review this
                  preliminary draft and provide the CME and SBF, jointly, with
                  estimates of the number of days needed to complete each
                  project. Unless otherwise agreed in advance, CME and Euronext
                  will bear their own costs associated with the preparation and
                  review of the preliminary draft described in this paragraph.

            2.    FINAL VERSION OF THE ANNUAL COMMON DEVELOPMENT PLAN.  No
                  later than January 15 of each year (March 31, in 1999), the
                  CME, acting jointly with SBF, shall provide to Euronext a
                  revised version of the Annual Common Development Plan.
                  This version of the plan shall include: (a) the Business
                  Functional Specifications for each project then listed in
                  the plan; and (b) a date for the necessary completion of
                  each project.

                  After receiving a copy of this revised version of the plan,
                  Euronext shall review it and, within fifteen (15) business
                  days, provide CME and SBF, jointly, with an estimate of the
                  number of days required for each project. No later than
                  February 15 of each year, the CME and SBF, jointly, shall
                  incorporate the Euronext estimates into the plan and
                  distribute a final version of the plan to Euronext. Unless
                  otherwise agreed in advance, the CME and Euronext will bear
                  their own costs associated with the preparation and review of
                  the final version described in this paragraph.



                                       10

<Page>



      D.    PREPARATION OF WORK ORDERS

            1.    DEVELOPING SPECIFICATIONS, RESOURCE ALLOCATIONS AND
                  DELIVERY PLANS.  For each project included in the Annual
                  CME Development Plan and the Annual Common Development
                  Plan, CME (or, in the case of Common Developments, the CME
                  and SBF, jointly) shall issue a written work order to
                  Euronext that includes the Business Functional
                  Specifications for the project and the required completion
                  date for the project. Euronext staff will prepare detailed
                  technical specifications for the project, identify the
                  Euronext Resource Allocation needed for the project (or, in
                  the case of Common Developments, the number of days needed
                  for the project), including any time spent preparing the
                  specifications and confirm the delivery plans for the
                  project.  Euronext will use reasonable efforts to complete
                  this work within ninety (90) calendar days after receiving
                  the work order.  The CME or, for Common Developments, the
                  CME and SBF, jointly, will review this work and notify
                  Euronext, within fifteen (15) business days, of any
                  necessary changes.

                  The CME (or, when applicable, the CME and SBF, according to
                  their respective shares) will compensate Euronext for its work
                  in preparing these materials by paying Euronext a fee equal to
                  ***** per day per person.

            2.    PREPARING THE FINAL WORK ORDER.  After working with
                  Euronext to finalize the specifications, Euronext Resource
                  Allocation and delivery plans for the project, the CME (or,
                  when applicable, the CME and SBF, jointly) will prepare a
                  final work order for the project. This work order will
                  include: (a) the final specifications; (b) the Euronext
                  Resource Allocation for the project (or, for Common
                  Developments, the number of days needed for the project);
                  (c) the delivery date; and (d) a description of, and the
                  dates for, acceptance testing. CME or, for Common
                  Developments, the CME and SBF, jointly, will forward the
                  final work order to Euronext before any work begins on the
                  project, but no later than fifteen (15) business days after
                  receiving the specifications, delivery plans and Euronext
                  Resource Allocation from Euronext.

            3.    LATER CHANGES TO THE SPECIFICATIONS.  The CME or, for
                  Common Developments, the CME and SBF, jointly, can make
                  changes to the specifications included in a work order by
                  submitting a description of the proposed change to
                  Euronext, in writing. Euronext will review the requested
                  change within fifteen (15) business days, make
                  modifications to the final specifications document and
                  identify any corresponding changes in either the Euronext
                  Resource Allocation (or the number of days needed) for



                                       11

<Page>


                  the project or the delivery date.  The CME or, for Common
                  Developments, the CME and SBF, jointly, will incorporate
                  any necessary changes to these materials in a revised work
                  order, with each party signing the revised document to
                  confirm their new understanding. Euronext will not begin
                  work on, and the CME or, for Common Developments, the CME
                  and SBF, jointly, will not be required to pay for, any
                  change that is not agreed upon as described above.

                  The CME or, when appropriate, the CME and SBF, according to
                  their respective shares, will compensate Euronext for its work
                  in preparing these revised materials by paying Euronext a fee
                  equal to ***** per day per person.

      E.    CANCELLATION OF A WORK ORDER

            CME can cancel a work order issued pursuant to the Annual CME
            Development Plan, at any time and in its sole discretion, by
            delivering written notice to Euronext. CME understands that any
            payments for any work already performed shall be due and payable,
            and that these payments may be made, at the CME's option, either
            through direct payments to Euronext or by subtracting the days
            worked from CME's annual Euronext Resource Allocation.

            Once a final work order issued pursuant to the Annual Common
            Development Plan has been delivered to Euronext and Euronext has
            started its development work, the work order cannot be cancelled
            without the consent of both CME and SBF.

      F.    GENERAL INFORMATION ABOUT DEVELOPMENT WORK PERFORMED BY EURONEXT

            Euronext and the CME agree that the following terms and conditions
            apply to all work performed pursuant to a work order under this
            Agreement.


            1.    OWNERSHIP AND USE OF THE DEVELOPMENT WORK. Except for work
                  that relates to the HUB API, all development work performed
                  under this Agreement shall constitute CME Enhancements or
                  Licensed Software as those terms are used in the NSC License
                  and shall remain the property of Euronext. The CME's use of
                  these CME Enhancements or Licensed Software shall be governed
                  by the terms of the NSC License.

                  Any development work performed under this Agreement that
                  relates to the HUB API shall be subject to the ownership
                  rights described in the HUB API Co-ownership Agreement.



                                       12

<Page>


            2.    DEVELOPMENT AND DELIVERY.  Euronext will perform the work
                  described in each work order, by the agreed-upon delivery
                  dates, using the agreed-upon number of days or agreed-upon
                  amounts of the Euronext Resource Allocation.

            3.    ACCEPTANCE TESTING.  Unless otherwise agreed by the parties
                  in writing, during the first thirty (30) days following
                  Euronext's delivery of a project, the CME or the persons
                  appointed by the Common Development Steering Committee
                  shall conduct the acceptance testing described in the work
                  order. This acceptance testing shall be designed primarily
                  to determine whether or not the project operates in
                  conformance with the specifications included in the work
                  order.  Throughout this testing, the CME or, for Common
                  Developments, the CME and SBF, jointly will communicate
                  regularly with Euronext to discuss any potential defects or
                  malfunctions they discover, and Euronext will begin its
                  efforts to cure these defects and malfunctions.  The CME
                  or, for Common Developments, the CME and SBF jointly shall
                  complete the acceptance testing during this 30-day period,
                  unless they notify Euronext during the acceptance testing
                  period that they require a longer time due to the existence
                  of defects or malfunctions.

            4.    CURING PRE-ACCEPTANCE DEFECTS.  Unless otherwise agreed by
                  the parties in writing, the CME or, for Common
                  Developments, the CME and SBF, jointly must notify
                  Euronext, in writing, no later than seven (7) business days
                  after the end of the acceptance testing period of any
                  remaining defects or malfunctions that prevent the project
                  from operating in accordance with the specifications. CME
                  or, for Common Developments, the CME and SBF jointly must
                  prioritize these defects, identifying the work that
                  Euronext should perform first. Euronext, at its sole
                  expense, will make all reasonable efforts to cure the
                  identified defects or malfunctions within fifteen (15)
                  business days after receiving this notice.

            5.    ACCEPTANCE.  When the CME or, for Common Developments, the
                  CME and SBF, jointly, has confirmed, through the acceptance
                  testing described in the work order, that the project
                  operates in accordance with the specifications, the CME or,
                  for Common Developments, the CME and SBF jointly, will
                  prepare and deliver to Euronext a written certificate of
                  acceptance. Acceptance will be presumed to have occurred,
                  even if the CME or, for Common Developments, the CME and
                  SBF, jointly, does not deliver a written certificate of
                  acceptance, if the project is put into production at the
                  end of the acceptance testing period.

            6.    LIMITED PRODUCT WARRANTY. During the 90-day period following
                  acceptance of each separate project, Euronext warrants that
                  the



                                       13

<Page>

                  project will operate in conformance with the specifications
                  included in the work order and agrees to cure, at its own
                  expense, any defects or malfunctions in the project within 90
                  days after being notified that they exist.

            7.    YEAR 2000 COMPLIANCE WARRANTY.  Each project delivered by
                  Euronext will be Year 2000 compliant in all material
                  respects. Year 2000 compliant means: (i) that each
                  component of the programs included in each project that
                  manipulates and accepts dates to the year 2090 will manage
                  and manipulate data involving such dates; (ii) such dates
                  will not cause the programs included in each project to
                  abnormally end processing; and (iii) the programs included
                  in each project will not generate incorrect values with
                  respect to date-dependent data resulting from such dates.

            8.    EURO COMPLIANCE WARRANTY.  Each project when delivered by
                  Euronext will be Euro compliant in all material respects,
                  will comply with any legislative changes connected with the
                  Economic and Monetary Union without requiring any material
                  rewrites or any further cost or expense to be incurred by
                  CME or, for Common Developments, by the CME and SBF,
                  jointly, and will not cause any disruption to the project
                  attributable to the generation of incorrect values relating
                  to the Euro as currency.  Euro compliant means: (i) that
                  each component of the project will be capable of supporting
                  the Euro as an additional currency and/or main currency;
                  and (ii) that each such component will have been
                  successfully tested to ensure that its operation will not
                  be adversely affected by virtue of the Economic and
                  Monetary Union and/or variation in currency and/or pricing
                  structures; and (iii) that each such component will
                  manifest no material errors as a result of the Economic
                  Monetary Union.

            9.    EXCLUSIONS AND LIMITATIONS OF LIABILITY.  The warranties
                  relating to Year 2000 and the Euro shall not apply if: (i)
                  the project is modified or altered by CME or any entity
                  other than Euronext and/or its affiliates; provided that,
                  but for such modification or alteration, the project would
                  be Year 2000 and Euro compliant; or (ii) the operating
                  system, computer hardware elements (including, but not
                  limited to, micro-code, BIOS and real time clock), any
                  third-party software, any interface to third-party
                  software, and/or any price feed or other third-party data,
                  cause the project, directly or indirectly, to fail to be
                  Year 2000 or Euro compliant. Euronext's sole obligation and
                  CME's sole remedy with respect to these Year 2000 and
                  Euro-related representations and warranties is for Euronext
                  to use commercially reasonable efforts to correct the
                  project.



                                       14

<Page>

                  EXCEPT AS SET FORTH IN PARAGRAPHS 4(F)(6) THROUGH (8) ABOVE,
                  EURONEXT MAKES NO WARRANTIES WITH RESPECT TO THE DEVELOPMENT
                  WORK DONE PURSUANT TO THIS AGREEMENT AND SPECIFICALLY
                  DISCLAIMS ANY WAY OF FITNESS FOR A PARTICULAR PURPOSE,
                  MERCHANTABILITY OR ANY OTHER EXPRESS OR IMPLIED WARRANTIES. NO
                  REPRESENTATION OR OTHER AFFIRMATION OF FACT, WHETHER MADE BY
                  EURONEXT OR OTHERWISE, WHICH IS NOT CONTAINED IN THIS
                  AGREEMENT SHALL BE DEEMED TO BE A WARRANTY BY EURONEXT FOR ANY
                  PURPOSES OR GIVE RISE TO ANY LIABILITY OF EURONEXT WHATSOEVER.

                  Euronext's liability for defects or malfunctions in any
                  project shall be limited to correction of those defects or
                  malfunctions. For any breach of any other provisions of this
                  Agreement relating to development work, the CME's exclusive
                  remedy shall be the recovery of its direct damages. Euronext's
                  liability for damages to the CME, regardless of the form or
                  cause of action, whether in contract or in tort, including
                  negligence, shall not, in the aggregate, exceed the amounts
                  paid to Euronext by the CME for the project at issue.

                  In no event shall either the CME or Euronext be liable to the
                  other or have a remedy for the recovery of any special,
                  indirect or consequential or incidental damages, whether
                  foreseeable or not, even if the applicable party has been
                  advised of the possibility thereof, including, but not limited
                  to, lost profits, lost revenues, failure to realize expected
                  savings, or other commercial or economic loss of any kind.

            10.   PAYMENT FOR NEW VERSIONS.  If the CME uses the Euronext
                  Resource Allocation or pays, as part of a Common
                  Development project, to develop work that is later
                  incorporated into a New Version, the CME shall not be
                  required to pay for the portion of that New Version
                  attributable to the work already paid for by the CME.
                  Euronext will make a reasonable determination of the
                  portion of the New Version attributable to the work already
                  paid for by the CME.

      G.    PROJECT MANAGEMENT

            1.    PROJECT MANAGEMENT COMMITTEE.  A project management
                  committee will oversee the non-Common Development and
                  training work performed under this Agreement. This
                  committee shall be comprised of two representatives from
                  each party. The CME representatives will be chosen from the
                  following three



                                       15

<Page>

                  persons: Bill Jenks, CME Executive Vice President and Chief
                  Information Officer; John Goode, CME Vice President,
                  Electronic Trading Systems; and Paul Jansson, Senior
                  Director, Customer Support Center.  The Euronext
                  representatives will be chosen from the following three
                  persons: Francois-Guy Hamonic, Euronext Senior
                  Executive Vice President; Gilles Clerc, Euronext Vice
                  President; and Francois Hudenot, SBF Project Manager. Any
                  party to this Agreement can, at its discretion, replace one
                  or both members of the committee by giving written notice
                  to the other party.

            2.    THE PROJECT MANAGEMENT COMMITTEE'S ROLE.  The project
                  management committee will have the following
                  responsibilities: (a) monitor the work performed during the
                  preparation of the preliminary drafts and final versions of
                  the Annual CME Development Plan; and (b) meet at least once
                  each calendar quarter to discuss the status of current
                  development work and any performance or quality issues that
                  have arisen. Any member of the project management committee
                  has the right to request an audit of any on-going projects
                  to assess progress toward goals, quality and other issues;
                  provided, however, that no audit shall be requested until
                  the party whose work will be audited has been given at
                  least thirty (30) days' prior written notice that an audit
                  might be requested and has had the opportunity to address
                  any concerns raised by the committee member during this
                  thirty (30) day period. Unless otherwise agreed by the
                  project management committee, the expenses associated with
                  any audit will be paid by the party requesting the audit.

            3.    QUARTERLY PROJECT REVIEW.  The project management
                  committee, and any other persons selected by any
                  participating committee member, shall attend a project
                  review meeting, held at a mutually agreed upon date during
                  the first month of each calendar quarter. These meetings
                  may be held by teleconference, videoconference or in
                  person. Each party attending the meting shall bear the
                  costs associated with its participation. This meeting shall
                  be held just before or just after any meeting of the
                  steering committee assembled under the Agreement on GLOBEX
                  Joint Development and Planning between the CME and SBF.

            4.    ADDITIONAL MEETINGS.  Any project management committee
                  member can call a meeting of the committee by sending
                  written notice to the other committee members. These
                  additional meetings shall be held on mutually agreed upon
                  dates, within at least ten (10) business days after notice
                  is received by all committee members, and may be held by
                  teleconference, videoconference or



                                       16

<Page>

                  in person. Each committee member shall make reasonable
                  efforts to make himself promptly available to attend these
                  meetings.

5.    CONFIDENTIALITY

      Except as excluded below, any Confidential Exchange Information and any
      information specifically identified, either verbally or in writing, as
      confidential, that is obtained under this Agreement by one party from the
      other shall be kept on a confidential basis by the party receiving such
      information, its officers and employees and, as such, shall not be
      disclosed to third parties or used for any purpose other than a purpose
      specifically authorized by this Agreement.

      The parties recognize that a breach of this paragraph by the other party
      may give rise to irreparable injury to the non-breaching party such that
      remedies other than injunctive relief may not be adequate. Accordingly,
      the non-breaching party has the right to seek from the Tribunal de Grande
      Instance de Paris (France) equitable and injunctive relief to prevent the
      threatened or actual unauthorized use of any confidential information
      covered by this Agreement.

      The obligation assumed by the parties in this paragraph shall not apply to
      information in the public domain at the time of any possible disclosure or
      that subsequently came into the public domain otherwise than by breach of
      this Agreement. Nothing in this paragraph prevents either party from
      advertising or otherwise promoting all of the functionalities of the NSC
      System, the HUB API or any other system subject to this Agreement.

6.    PAYMENTS AND TAXES

      A.    PAYMENT TERMS

      All payments that become due during the initial three-year term of this
      Agreement will be made in U.S. Dollars and will be made within 30 days
      after receiving an appropriate invoice from Euronext. If the parties agree
      to extend the agreement for between one and three additional one-year
      terms, all payments that become due during these periods will be made in
      Euros.

      B.    TAXES

      All amounts payable to Euronext are exclusive of, and will be paid without
      deduction for, all taxes, levies, or similar governmental charges, however
      designated, which may be assessed by any jurisdiction based on gross
      revenue. Except for corporate income tax imposed on Euronext, or other
      taxes, fees or duties associated with this Agreement demanded by the
      Republic of France, the CME (or the CME and SBF together, for Common
      Developments) shall pay all taxes including any related penalties and
      interest or late charges, levies, or similar governmental charges or
      provide Euronext with a certificate of exemption acceptable to the
      appropriate taxing authority. Euronext agrees to provide the



                                       17

<Page>

      CME with such forms or documents as may be reasonably requested by the
      CME from time to time to certify exemption from withholding of income
      tax.

7.    PERSONNEL MATTERS

      A.    EURONEXT'S EMPLOYEES

      Euronext shall be responsible for the payment of the salaries and the
      remuneration of its employees, as well as for any other obligations or
      taxes in compliance with the labor laws and regulations applicable to
      Euronext in France. It is hereby established that no employment bond shall
      be formed between the CME and Euronext's employees. Euronext shall
      indemnify the CME and hold it harmless from any and all costs, expenses,
      liability, claims and demands of any kind that may be filed against the
      CME by any such employees alleging the existence of such an employment
      bond.

      B.    RESTRICTION ON HIRING

      For the duration of this Agreement, neither party shall offer to employ or
      employ individuals employed by the other party or subcontracted by the
      other party without the written consent of the other party.

      C.    IMMIGRATION AUTHORIZATIONS

      The CME shall assist Euronext to obtain all immigration authorizations
      necessary for Euronext personnel to carry out their activities.

8.    TERM AND TERMINATION

      A.    TERM

      This Agreement shall take effect on January 1, 1999 and have an initial
      term of three (3) years. The parties can elect, by signing a final
      agreement no later than October 1, 2001, to renew the Agreement for one or
      more additional one-year periods.

      B.    TERMINATION

      If either party fails to perform any of its material obligations under the
      Agreement, and that failure is not remedied within 30 days after notice is
      given to the defaulting party specifying the nature of the default, the
      non-defaulting party may, upon further notice to the defaulting party
      terminate the Agreement as of the date specified in the notice of
      termination.

      In addition to the termination rights described above, the CME may
      immediately terminate the maintenance provisions of this Agreement upon
      notice to Euronext if Euronext fails, on at least two occasions within a
      six (6) month period and in a substantial way, to provide the error
      correction services for Class 1 Errors or



                                       18

<Page>

      Class 2 Errors described in paragraph 3(A)(2). If the CME terminates
      the maintenance provisions of this Agreement on this basis, Euronext
      shall reimburse the CME on a pro rata temporis basis the amount of the
      fee already paid that relates to the remaining duration of the
      maintenance provisions of the Agreement and the remaining provisions of
      the Agreement not relating to maintenance shall continue in effect.

9.    ARBITRATION

      A.    PRE-ARBITRATION ESCALATION

      Except for any disputes that may arise pursuant to paragraph 5, any
      dispute between the parties relating to this Agreement shall first be
      submitted in writing to a four-person panel consisting of two senior
      executives of both Euronext and the CME, who shall promptly meet and
      confer in an effort to resolve such a dispute. Each party shall designate
      such executives within five (5) business days after receipt of an
      appropriate notice from the other party. Each party's executives shall be
      identified by notice to the other party, and may be changed at any time
      thereafter also by notice to the other. The executives may choose to
      commission an audit of technical aspects of the dispute to assist them in
      reaching a decision. Such an audit shall be performed by an independent
      third party whose identity and terms of reference shall be agreed upon by
      the executives. Any decisions of the executives shall be final and binding
      on the parties. In the event the executives are unable to resolve any
      dispute within thirty (30) days after submission to them (including the
      conduct of any audit), either party may then refer such a dispute to
      arbitration in accordance with the provisions described below.

      B.    GENERAL PROVISIONS RELATING TO ARBITRATION

      Except for any disputes that may arise pursuant to paragraph 5, all
      disputes arising in connection with this Agreement, or the existence,
      validity, breach or termination thereof, whether during or after its term
      that have not been settled in the form described in paragraph 9(A), shall
      be finally settled by compulsory arbitration under the then-current Rules
      of Conciliation and Arbitration of the International Chamber of Commerce,
      as modified or supplemented in this Article. The arbitration panel shall
      consist of three arbitrators. Euronext and the CME expressly agree that
      the arbitrators shall permit each party: (1) to request, and shall compel
      each party to produce for the other party reasonably in advance of any
      hearing, any relevant documents, evidence or witnesses; and (2) to call
      and question any witness, including any expert witness, and to
      cross-examine any witness called by its opponent. The award of the
      arbitrators shall be final and shall constitute the exclusive remedy of
      Euronext and the CME for all claims, counterclaims, issues or accounting
      presented to the arbitrators. Each award by the arbitrators shall be: (1)
      granted and paid in Euros; (2) if such award includes payment from one
      party to another, include interest at the rate of one percent each month
      from the date of breach or other violation of the Agreement until the date
      the award if fully paid; and (3) include the cost of the arbitration and
      the



                                       19

<Page>

      prevailing party's reasonable attorneys' fees and expenses. Judgment
      upon the final arbitral award may be entered in any court that has
      jurisdiction. Any additional costs, fees or expenses incurred by the
      prevailing party in enforcing the award shall be charged against and paid
      by the party that resists its enforcement. The language of arbitration
      shall be English. The place of arbitration shall be Zurich, Switzerland.

10.   REPRESENTATIONS AND WARRANTIES OF THE PARTIES

      A.    GENERAL REPRESENTATIONS AND WARRANTIES OF EURONEXT.  Euronext
            represents and warrants to the CME as follows:

            1.    Euronext has the corporate power and the capacity to enter
                  into and to perform its obligations under this Agreement. This
                  Agreement has been authorized, executed and delivered by
                  Euronext and is a valid and binding obligation of Euronext,
                  enforceable according to its terms.

            2.    Neither the entering into of this Agreement, nor the
                  performance by Euronext of any of its obligations under
                  this Agreement will contravene, breach or result in any
                  default under the articles, by-laws, constituting documents
                  or other organizational documents of Euronext or under any
                  mortgage, lease, agreement, other legally binding
                  instrument, license, permit, statute, regulation, order,
                  judgment, decree or law to which Euronext is a party or by
                  which Euronext may be bound.

            3.    No other authorization, consent or approval of, or filing with
                  or notice to, any court or other Person is required in
                  connection with the execution, delivery or performance of this
                  Agreement by Euronext.

      B.    GENERAL REPRESENTATIONS AND WARRANTIES OF THE CME.  The CME
            represents and warrants to Euronext as follows:

            1.    The CME has the corporate power and the capacity to enter into
                  and to perform its obligations under this Agreement. This
                  Agreement has been authorized, executed and delivered by the
                  CME and is a valid and binding obligation of the CME,
                  enforceable according to its terms.

            2.    Neither the entering into of this Agreement, nor the
                  performance by the CME of any of its obligations under this
                  Agreement will contravene, breach or result in any default
                  under the articles, by-laws, constituting documents or
                  other organizational documents of the CME or under any
                  mortgage, lease, agreement, other legally binding
                  instrument, license, permit, statute, regulation, order,



                                       20

<Page>


                  judgment, decree or law to which the CME is a party or by
                  which the CME may be bound.

            3.    No other authorization, consent or approval of, or filing with
                  or notice to, any court or other Person is required in
                  connection with the execution, delivery or performance of this
                  Agreement by the CME.

11.   INTELLECTUAL PROPERTY INDEMNIFICATION

      A.    DEFENSE OF CLAIMS AGAINST CME.  Euronext shall indemnify CME, its
            affiliates and subsidiaries against, and hold these Persons
            harmless from, any and all costs, losses, damages, liabilities,
            claims and demands incurred by or made against CME by a third
            Person alleging that any development work or maintenance services
            delivered by Euronext pursuant to this Agreement infringes upon
            that Person's proprietary rights. CME will promptly notify
            Euronext of any threatened or actual claim covered by this
            indemnification and will cooperate with and assist Euronext to
            the extent that that cooperation may reasonably be required.

      B.    REMEDIES.  If any development work or maintenance services
            delivered by Euronext pursuant to this Agreement is found, by a
            final decision of a court of competent jurisdiction, to
            constitute an infringement of the proprietary rights to a third
            Person, or if Euronext concedes that infringement through a
            settlement of a claim, Euronext shall, at its sole option and
            expense and in addition to providing the indemnification
            described above, either: (1) procure for the CME the right to use
            the affected systems in the manner described in the NSC License
            or any other applicable agreement; or (2) modify the affected
            systems so as to render them non-infringing, or replace them with
            a substitute of equal quality approved by the CME, provided that
            any modification or substitute must perform according to the
            applicable specifications.

12. GENERAL PROVISIONS

      A.    ASSIGNMENT.  This Agreement shall bind and inure to the benefit
            of the parties and their respective successors and assigns;
            provided, however, that no party may assign or transfer its
            rights and obligations under this Agreement, whether totally or
            in part, without the prior written consent of the other party.

      B.    WAIVER.  Either party's acceptance of the other's default on any
            clauses or conditions shall be regarded as a mere forbearance,
            and shall not imply a waiver, alteration or innovation regarding
            the fulfillment of any obligation under this Agreement, which may
            be claimed at any time.

      C.    ENTIRE AGREEMENT. This Agreement contains the entire agreement
            between the parties with respect to its specific subject matter,
            superceding



                                       21

<Page>

            any other document formerly entered into between the parties in
            this regard; any amendment or change to any of the clauses or
            conditions of this Agreement may only be made by written contract
            signed by both parties.

      D.    NOTICE.  Any written notice required by this Agreement shall be
            made by overnight delivery through a reputable delivery service
            such as DHL or Federal Express or through registered first class
            mail, postage prepaid, and shall be forwarded to the respective
            addresses set forth above, unless another address is substituted
            by written notice, and shall be effective seven (7) days after
            posting or after delivery, whichever occurs first.

      E.    FORCE MAJEURE.  If any of the obligations of the parties are
            prevented, restricted or interfered with by reason of any actual
            or impending cause beyond the reasonable control of the affected
            party, or force majeure, upon prompt notice to the other party,
            the party so affected shall be excused from such performance to
            the extent of such prevention, restriction or interference for a
            period equal to the period of delay caused by such event; the
            party so excused shall make all reasonable efforts to avoid or
            remove such causes of non-performance and shall resume
            performance with the utmost dispatch whenever such causes are
            removed.

      F.    PARAGRAPH HEADINGS.  The paragraph headings contained in this
            Agreement are solely for the convenience of the parties and shall
            not affect the meaning or interpretation of this Agreement.

      G.    SEVERABILITY. Each part of this Agreement is a distinct undertaking.
            In the event any part of this Agreement shall be determined to be
            unlawful, such part shall be deemed severed from this Agreement and
            of no effect; every other part of this Agreement not so severed
            shall remain in full force and effect.

      H.    CONTINUING OBLIGATIONS.  The obligations and rights under
            paragraphs 5, 6, 7(A), 9 and 11 shall survive the completion,
            expiration or termination of this Agreement.

      I.    CHOICE OF LAW.  The Contract shall be subject to and construed
            and interpreted in accordance with French Law.

      J.    ENGLISH LANGUAGE.  The official language of this Agreement is
            English.


AGREED:

EURONEXT                            CHICAGO MERCANTILE EXCHANGE


By:    /s/ Dominique Brutin         By:    /s/ Bill Jenks
      ------------------------            ------------------------



                                       22

<Page>


Its:  CEO                           Its:  Executive Vice President, Chief
                                          Information Officer



                                       23

<Page>

                                    EXHIBIT 1



                            EURONEXT HOT-LINE NUMBER
                         WORKING DAYS AND WORKING HOURS
                            COVERED BY THIS AGREEMENT

==============================================================================
Phone Number                  33 1 49 27 15 60
------------------------------------------------------------------------------
Fax Number                    33 1 49 27 15 60
------------------------------------------------------------------------------
Working Days (Chicago Time)   From Sunday 12:00 (noon) to Saturday 00:00
------------------------------------------------------------------------------
Working Hours                 24 hours a day
------------------------------------------------------------------------------


                                    Ex. 1-1


<Page>


                                    EXHIBIT 2

                      IDENTIFIED CONTACTS FROM CME ENTITLED
                          TO CALL THE EURONEXT HOT-LINE

<Table>
<Caption>

                Name                          Position                       Phone                    E-mail
------------------------------------------------------------------------------------------------------------------
<S>    <C>                        <C>                                    <C>                      <C>
  1          John GOODE           V.P. Electronic Trading Systems        1 312 930 2601           Jgoode@cme.com
------------------------------------------------------------------------------------------------------------------
  2         James KRAUSE           Sr. V.P. Enterprise Computing         1 312 930 8173          Jkrause@cme.com
------------------------------------------------------------------------------------------------------------------
  3         James FARRELL               Sr. Systems Analyst              1 312 930 3347          Jfarrel@cme.com
------------------------------------------------------------------------------------------------------------------
  4          Amy WATSON                 Sr. Systems Analyst              1 312 338 7197          Awatson@cme.com
------------------------------------------------------------------------------------------------------------------
  5          Bill JENKS           Executive Vice President, Chief        1 312 930 3234           Bjenks@cme.com
                                        Information Officer
------------------------------------------------------------------------------------------------------------------
  6          John GOODE          Vice President, Electronic Trading      1 312 388 2601           Jgoode@cme.com
                                              Systems
------------------------------------------------------------------------------------------------------------------
  7         John RESTIVO                Sr. Business Analyst             1 312 634 5475          Jrestivo@cme.com
------------------------------------------------------------------------------------------------------------------
</Table>


                                    Ex. 2-1

<Page>
                                    EXHIBIT 3
                          CME WORKING DAYS FOR YEAR 1999

From Sunday 4 P.M. to Friday 8 P.M. Chicago time, except the following holidays:

<Table>
<Caption>
----------------------------------------------------------------------------------------------------------
           Month                        Day                       Month                       Day
----------------------------------------------------------------------------------------------------------
<S>                                  <C>                <C>                               <C>
January                              January 1          July
----------------------------------------------------------------------------------------------------------
February                                                August
----------------------------------------------------------------------------------------------------------
March                                                   September
----------------------------------------------------------------------------------------------------------
April                                                   October
----------------------------------------------------------------------------------------------------------
May                                                     November
----------------------------------------------------------------------------------------------------------
June                                                    December                          December 25
----------------------------------------------------------------------------------------------------------
</Table>

                                   Ex. 3-1


<Page>



                                   EXHIBIT 4
                             EURONEXT ACCOUNT MANAGER

<Table>
<Caption>
=====================================================================
Name                                          Gilles CLERC
---------------------------------------------------------------------
<S>                                           <C>
---------------------------------------------------------------------
Phone Number (Work)                           33 1 49 27
---------------------------------------------------------------------
Fax Number                                    33 1 49 27
---------------------------------------------------------------------
</Table>


                                     Ex. 4-1


<Page>



                                   EXHIBIT 5
                        SOFTWARE AND OPERATING SYSTEMS

<Table>
<Caption>
--------------------------------------------------------------------------
                                      Operating
CENTRAL SERVICES SOFTWARE               System             Configuration
--------------------------------------------------------------------------
<S>                                 <C>                   <C>
--------------------------------------------------------------------------
NSC Trading Engine                      G04               Tandem/S70 000
--------------------------------------------------------------------------
NSC Frontal                             G04               Tandem/S70 000
--------------------------------------------------------------------------
RLS - Ticker plant                      G04               Tandem/S70 000
--------------------------------------------------------------------------
DIFF - Broadcast                    Solaris 2.5                 Sun
--------------------------------------------------------------------------
Cabine - Monitoring                  AIX 4.2.1                RS6000
--------------------------------------------------------------------------
SPI                                 Solaris 2.5                 Sun
--------------------------------------------------------------------------
</Table>


                                     Ex. 5-1