UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 6, 2011

INTERCONTINENTALEXCHANGE, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (770) 857-4700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 8.01 Other Events.

IntercontinentalExchange, Inc. (NYSE: ICE, or the “Company”), a leading operator of regulated global exchanges, clearing houses and over-the-counter (OTC) markets, today announced that it has repurchased shares of its common stock pursuant to its previously authorized stock repurchase program, which has a remaining authorization of $209.6 million, as the Company believes that the current share price undervalues ICE. The Company may continue to repurchase shares of its common stock, the timing and extent of which will depend upon market conditions, its stock price and its strategic plans. The Company will suspend future share repurchases under this program, as required by law, prior to disseminating an offer to purchase/prospectus to the security holders of NYSE Euronext in connection with the joint proposal by ICE and NASDAQ OMX to commence an exchange offer to acquire all of the outstanding shares of NYSE Euronext. The Company undertakes no duty to update this Current Report.

Forward-Looking Statements

Information set forth in this communication contains forward-looking statements that involve a number of risks and uncertainties. NASDAQ OMX and ICE caution readers that any forward-looking information is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking information. Such forward-looking statements include, but are not limited to (i) projections about future financial results, growth, trading volumes, tax benefits and achievement of synergy targets, (ii) statements about the implementation dates and benefits of certain strategic initiatives, (iii) statements about integrations of recent acquisitions, and (iv) other statements that are not historical facts. Forward-looking statements involve a number of risks, uncertainties or other factors beyond NASDAQ OMX’s and ICE’s control. These factors include, but are not limited to, NASDAQ OMX’s and ICE’s ability to implement its strategic initiatives, economic, political and market conditions and fluctuations, government and industry regulation, interest rate risk, U.S. and global competition, and other factors detailed in each of NASDAQ OMX’s and ICE’s filings with the U.S. Securities and Exchange Commission (the “SEC”), including (i) NASDAQ OMX’s annual reports on Form 10-K and quarterly reports on Form 10-Q that are available on NASDAQ OMX’s website at http://nasdaqomx.com and (ii) ICE’s annual reports on Form 10-K and quarterly reports on Form 10-Q that are available on ICE’s website at http://theice.com. NASDAQ OMX’s and ICE’s filings are also available on the SEC website at www.sec.gov. Risks and uncertainties relating to the proposed transaction include: NASDAQ OMX, ICE and NYSE Euronext will not enter into any definitive agreement with respect to the proposed transaction; required regulatory approvals and financing commitments will not be obtained on satisfactory terms and in a timely manner, if at all; the proposed transaction will not be consummated; the anticipated benefits of the proposed transaction will not be realized; and the integration of NYSE Euronext’s operations with those of NASDAQ OMX or ICE will be materially delayed or will be more costly or difficult than expected. NASDAQ OMX and ICE undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.

Important Information About the Proposed Transaction and Where to Find It:

Subject to future developments, additional documents regarding the transaction may be filed with the SEC. This material is for informational purposes only and does not constitute an offer to exchange, or a solicitation of an offer to exchange, shares of common stock of NYSE Euronext.

This material is not a substitute for the tender offer statement, registration statements, offer to exchange/prospectuses and other documents that are intended to be filed with the SEC by NASDAQ OMX, ICE and their affiliates regarding an exchange offer for shares of common stock of NYSE Euronext. Nor is this material a substitute for the joint proxy statement/prospectuses or any other documents NASDAQ OMX, ICE and NYSE Euronext would file with the SEC. Such documents, however, are not currently available. INVESTORS ARE URGED TO CAREFULLY READ THE TENDER OFFER STATEMENT, REGISTRATION STATEMENTS, OFFER TO EXCHANGE/PROSPECTUSES AND OTHER EXCHANGE OFFER DOCUMENTS NASDAQ OMX, ICE AND THEIR AFFILIATES WILL FILE WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS THERETO, WHEN THEY BECOME AVAILABLE, AND THE PROXY STATEMENT/PROSPECTUSES REGARDING THE PROPOSED TRANSACTION AND ANY OTHER DOCUMENTS NASDAQ OMX, ICE AND NYSE EURONEXT WOULD FILE WITH THE SEC, IF AND WHEN THEY BECOME AVAILABLE, BECAUSE SUCH DOCUMENTS WILL CONTAIN IMPORTANT INFORMATION. All such documents, when filed, are available free of charge at the SEC’s website (http://www.sec.gov) or by directing a request, in the case of NASDAQ OMX’s filings, to NASDAQ OMX at One Liberty Plaza, New York, New York 10006, Attention: Investor Relations or, in the case of ICE’s filings, to ICE, at 2100 RiverEdge Parkway, Suite 500, Atlanta, Georgia, 30328, Attention: Investor Relations; or by emailing a request to ir@theice.com.

This communication shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended.

Participants in the Solicitation:

NASDAQ OMX, ICE, and their respective directors, executive officers and other employees may be deemed to be participants in the solicitation of proxies in respect of the proposed transaction.

You can find information about NASDAQ OMX and NASDAQ OMX’s directors and executive officers in NASDAQ OMX’s Annual Report on Form 10-K, filed with the SEC on February 24, 2011, and in NASDAQ OMX’s proxy statement for its 2011 annual meeting of stockholders, filed with the SEC on April 15, 2011.

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You can find information about ICE and ICE’s directors and executive officers in ICE’s Annual Report on Form 10-K, filed with the SEC on February 9, 2011, and in ICE’s proxy statement for its 2011 annual meeting of stockholders, filed with the SEC on April 1, 2011.

Additional information about the interests of potential participants will be included in the joint proxy statement/prospectuses, if and when it becomes available, and the other relevant documents filed with the SEC.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

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