Euronext N.V.

Earnings Release • Sep 4, 2009

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NYSE Euronext Announces Trading Volumes for August ounces August 2009

Unseasonally Strong August Trading Volumes Drive Year-over-Year Increases Across All Venues

September 4, 2009 – NYSE Euronext (NYX) today announced trading volumes for its global cash equities and derivatives exchanges for August 2009¹ . Trading volumes in August generally rebounded from July levels resulting in year-over-year increases across all trading venues with European cash and derivatives volume up 5.3% and 15.9%, respectively, and U.S. cash and derivatives volume up 6.4% and 66.9%, respectively.

Highlights Highlights

• NYSE, NYSE Arca and NYSE Amex ("NYSE Group") U.S. cash products handled ADV in August 2009 increased 6.4% and 3.9% compared to August 2008 and July 2009, respectively, and increased 11.3% year-to-date. NYSE Group matched share of all U.S. equity trading volume in August 2009 was 27.3%, compared to matched market share of 21.1% for our next largest competitor.
• NYSE Euronext is the largest exchange operator in the two fastest growing tapes in the U.S. equity markets. Year-to-date, total Tape A and Tape B consolidated ADV increased a combined 43.2%, compared to the prior year period, while Tape C consolidated ADV has increased only 2.3% during the same period.
• NYSE Euronext European cash products ADV of 1.3 million transactions in August 2009 increased 5.3% and 10.1% compared to August 2008 and July 2009, respectively. Year-to-date transactions of 1.4 million were 7.8% below the same period last year.
• NYSE Euronext European derivatives products ADV in August 2009 was 3.5 million contracts, up 15.9% from August 2008, and down 1.7% from July 2009. Total interest rate products ADV was 1.9 million contracts, up 12.0% compared to August 2008 and total equity products ADV of 1.6 million contracts increased 21.8% from 1.3 million contracts.
• NYSE Euronext U.S. equity options ADV of 2.3 million contracts in August 2009 increased 66.9% compared to August 2008 levels, but decreased 5.5% from July 2009. The increase in ADV year-over-year was driven mostly by the addition of the former Amex options business.

1 Euronext equities transactions count each buy and sell order as separate transactions, NYSE Group equities transactions count buy and sell orders together as a single transaction. All NYSE Euronext derivatives transactions count buy and sell orders together as a single transaction. Prior year period does not include the former Amex equities and options businesses.

Cash Trading

U.S. Cash

NYSE Group U.S. cash products handled ADV in August 2009 increased 6.4% to 2.9 billion shares, compared to August 2008 and increased 3.9% from July 2009. Year-todate, NYSE Group handled ADV of 3.6 billion shares was 11.3% above the same period last year. NYSE Group matched share of all U.S. equity volume in August 2009 was 27.3%, compared to matched market share of 21.1% for our next largest competitor. Consolidated Tape A and Tape B trading volume in August accounted for approximately 77% of all Consolidated Tape trading in the U.S. market which includes trade reporting facility ("TRF") volumes.

NYSE-listed (Tape A)

• Total Tape A consolidated ADV in August 2009 increased 35.7% to 5.9 billion shares compared to 4.3 billion shares in August 2008 and increased 15.9% compared to July 2009. Year-to-date, total Tape A consolidated ADV of 6.0 billion shares was 32.9% above the prior year period.
• Tape A matched ADV of NYSE Group in August 2009 increased 9.3% to 2.0 billion shares compared to August 2008 and 6.8% compared to July 2009. Yearto-date, NYSE Group matched ADV in Tape A increased 9.5% compared to the prior year period.
• NYSE Group's Tape A matched market share in August 2009 was 33.8%, down from 36.6% in July 2009, and compared to matched market share of 16.5% for our next largest competitor. The decline in market share in August 2009 was driven in part by a significant increase in TRF executed volume in the top-10 most actively traded stocks which represented approximately 39% of Tape A consolidated activity, up from approximately 26% in July 2009. Excluding the impact of the volume of the top-10 most actively traded stocks, Tape A matched market share would have been 39.4% in July and 39.1% in August. Largely as a result of the activity in these top-10 stocks, TRF market share across Tape A increased 370 basis points in August 2009 to 37.6% and up from 25.0% in December 2008.
• Designated Market Maker ("DMM") participation in August 2009 was 8.8%, compared to 8.7% in July 2009. Supplemental Liquidity Provider ("SLP") participation in August 2009 was 7.6%, compared to 7.7% in July 2009. DMM and SLP participation pertain only to trading on NYSE.

NYSE Arca and NYSE Amex-listed (Tape B)

• Total Tape B consolidated ADV in August 2009 increased 25.1% to 1.5 billion shares compared to August 2008 and decreased 3.8% compared to July 2009. Year-to-date, total Tape B consolidated ADV of 2.1 billion shares was 81.5% above the prior year period.
• NYSE Group's matched ADV of Tape B in August 2009 increased 11.5% to 349 million shares compared to August 2008 and declined 2.8% compared to July 2009. Year-to-date, NYSE Group Tape B matched ADV was 55.3% above the prior year period.
• Tape B matched market share of NYSE Group in July 2009 was 23.3%, up from 23.1% in July 2009, compared to matched market share of 24.2% for our next largest competitor. TRF market share across Tape B increased in August 2009 to 34.8% from 21.5% in December 2008.

Nasdaq-listed (Tape C)

• Total Tape C consolidated ADV in August 2009 increased 13.5% to 2.2 billion shares, compared to 1.9 billion shares in August 2008. Tape C consolidated volumes represented approximately 23% of all Consolidated Tape trading in the U.S. in August 2009. Year-to-date, total Tape C consolidated ADV was 2.3% above the prior year period.
• NYSE Group's matched ADV of Tape C decreased 14.7% to 271 million shares in August 2009 compared to 318 million shares in August 2008 and decreased 4.9% compared to July 2009. Year-to-date, NYSE Group's Tape C matched ADV decreased 13.6% to 321 million shares.
• NYSE Group's Tape C matched market share decreased to 12.6% from 12.9% in August 2009, compared to matched market share of 31.8% for our nearest competitor, down from 33.1% in July. TRF market share across Tape C increased in August 2009 to 40.2% from 29.9% in December 2008.

Exchange Traded Products

• NYSE Group matched exchange-traded products ADV (included in volumes from Tape B and Tape C noted above) was flat in August 2009 compared to the prior year period at 332 million shares. Year-to-date, matched exchange-traded products ADV was 44.1% above the prior year period.

European Cash

NYSE Euronext European cash products ADV of 1.3 million transactions in August 2009 increased 5.3%, compared to August 2008 and increased 10.1% compared to July 2009. Year-to-date, European cash products ADV of 1.4 million transactions was 7.8% below the same period last year.

Derivatives Trading Derivatives Tradingatives Trading

European Derivatives

NYSE Euronext European derivatives products ADV in August 2009 was 3.5 million futures and options contracts, an increase of 15.9% from August 2008, but down 1.7% from the 3.6 million contracts recorded in July 2009. The 3.5 million in futures and options contracts ADV in August 2009 consisted of 2.8 million contracts executed through our full-service LIFFE CONNECT trading platform and a total of 0.6 million, or 18.4%, of the contracts executed through Bclear, NYSE Liffe's trade administration and clearing service for OTC products. Year-to-date European derivatives products ADV of 4.1 million contracts was 1.1% below prior year levels.

• Total interest rate products ADV increased 12.0% to 1.9 million contracts from 1.7 million contracts in August 2008 and increased 17.9% from July 2009. Yearto-date, total interest rate products ADV decreased 14.4% compared to the prior year period.
• Total equity products (including Bclear) ADV increased 21.8% to 1.6 million contracts from August 2008 and decreased 17.7% compared to July 2009. Total equity products ADV in August executed through our full-service LIFFE CONNECT trading platform was 0.9 million contracts, in-line with the prior year period. Year-to-date total equity products ADV increased 16.6% above the prior year period.

U.S. Derivatives

NYSE Euronext's U.S. equity options (NYSE Arca and NYSE Amex) ADV in August 2009 increased 66.9% to 2.3 million contracts compared to August 2008, but decreased 5.8% compared to July 2009. Total U.S. consolidated options ADV increased 10.5% to 12.7 million contracts in August 2009, and decreased 2.1% from July 2009. Year-to-date, U.S. equity options volume of 2.4 million contracts was 42.2% above the prior year period. NYSE Euronext's U.S. options exchanges accounted for 18.2% of the total consolidated equity options trading in August 2009, up from 12.0% in August 2008, but down from the 18.8% in July 2009.

Please click here for the Monthly Transaction Activity Data Table.

About NYSE Euronext

NYSE Euronext (NYX) is a leading global operator of financial markets and provider of innovative trading technologies. The company's exchanges in Europe and the United States trade equities, futures, options, fixed-income and exchange-traded products. With more than 8,000 listed issues, NYSE Euronext's equities markets -- the New York Stock Exchange, Euronext, NYSE Arca and NYSE Amex -- represent nearly 40 percent of the world's equities trading, the most liquidity of any global exchange group. NYSE Euronext also operates NYSE Liffe, the leading European derivatives business and the world's second-largest derivatives business by value of trading. The company offers comprehensive commercial technology, connectivity and market data products and services through NYSE Technologies. NYSE Euronext is in the S&P 500 index, and is the only exchange operator in the S&P 100 index and Fortune 500. For more information, please visit: www.nyx.com

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This press release may contain forward-looking statements, including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements include, but are not limited to, statements concerning NYSE Euronext's plans, objectives, expectations and intentions and other statements that are not historical or current facts. Forward-looking statements are based on NYSE Euronext's current expectations and involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied in such forward-looking statements. Factors that could cause NYSE Euronext's results to differ materially from current expectations include, but are not limited to: NYSE Euronext's ability to implement its strategic initiatives, economic, political and market conditions and fluctuations, government and industry regulation, interest rate risk and U.S. and global competition, and other factors detailed in NYSE Euronext's reference document for 2008 ("document de référence") filed with the French Autorité des Marchés Financiers (Registered on April 28, 2009 under No. R. 09-031), 2008 Annual Report on Form 10-K and other periodic reports filed with the U.S. Securities and Exchange Commission or the French Autorité des Marchés Financiers. In addition, these statements are based on a number of assumptions that are subject to change. Accordingly, actual results may be materially higher or lower than those projected. The inclusion of such projections herein should not be regarded as a representation by NYSE Euronext that the projections will prove to be correct. This press release speaks only as of this date. NYSE Euronext disclaims any duty to update the information herein.