Conference Call Scheduled For Thursday, May 3, 2007, at 8:30 a.m.

                                  EDT

NEW YORK--(BUSINESS WIRE)--March 21, 2007--eSpeed, Inc. (NASDAQ: ESPD), a leading developer of electronic marketplaces and related trading technology for the global capital markets, announced today that it will release its first quarter 2007 financial results after the close of market on Wednesday May 2, 2007. The Company will host a conference call on Thursday, May 3, 2007, at 8:30 a.m. EDT to discuss these results.

WHO:      eSpeed, Inc. (NASDAQ: ESPD)

WHAT:     First quarter 2007 earnings conference call

WHEN:     Thursday, May 3, 2007, at 8:30 a.m. EDT

WHERE:    The "Investor Info" section at www.espeed.com

HOW:      Listeners must have a Real Media or Windows Media plug-in
          and headphones or speakers in order to listen to the webcast
          or its replay.

About eSpeed, Inc.

eSpeed, Inc. (NASDAQ: ESPD) is a leader in developing and deploying electronic marketplaces and related trading technology that offers traders access to the most liquid, efficient and neutral financial markets in the world. eSpeed operates multiple buyer, multiple seller real-time electronic marketplaces for the global capital markets, including the world's largest government bond markets and other fixed income and foreign exchange marketplaces. eSpeed's suite of marketplace tools provides end-to-end transaction solutions for the purchase and sale of financial products over eSpeed's global private network or via the Internet. eSpeed's neutral platform, reliable network, straight-through processing and superior products make it a trusted source for electronic trading at the world's largest fixed income and foreign exchange trading firms and major exchanges. For more information, please visit www.espeed.com.

Discussion of Forward-Looking Statements by eSpeed, Inc.

The information in this press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements are based upon current expectations that involve risks and uncertainties. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Our actual results and the timing of certain events may differ significantly from the results discussed in the forward-looking statements. Factors that might cause or contribute to such a discrepancy include, but are not limited to, our relationship with Cantor Fitzgerald and its affiliates, the costs and expenses of developing, maintaining and protecting our intellectual property, including judgments or settlements paid or received and their related costs, the possibility of future losses and negative cash flow from operations, the effect of market conditions, including trading volume and volatility, our pricing strategy and that of our competitors, our ability to develop new products and services, to enter new markets, to secure and maintain market position, to enter into marketing and strategic alliances, to hire new personnel, to expand the use of our electronic system, to induce clients to use our marketplaces and services and to effectively manage any growth we achieve, and other factors that are discussed under "Risk Factors" in eSpeed's Annual Report on Form 10-K filed with the Securities and Exchange Commission.

We believe that all forward-looking statements are based upon reasonable assumptions when made; however, we caution that it is impossible to predict actual results or outcomes or the effects of risks, uncertainties or other factors on anticipated results or outcomes and that, accordingly, you should not place undue reliance on these statements. Forward-looking statements speak only as of the date when made, and we undertake no obligation to update these statements in light of subsequent events or developments. Actual results and outcomes may differ materially from anticipated results or outcomes discussed in forward-looking statements.

CONTACT: eSpeed, Inc.
Media:
Robert Hubbell, 212-294-7820
RHubbell@espeed.com
or
Investors:
Jason McGruder, 212-829-4988
jmcgruder@espeed.com

SOURCE: eSpeed, Inc.