News Releases

NEW YORK, November 3, 2008 –-NYSE Euronext (NYX) announced that its fully-owned subsidiary NYSE Arca today began trading 74 PowerShares Exchange Traded Funds (ETFs) on a listed basis after the group transferred listing from NYSE Alternext US (formerly, the American Stock Exchange).

Each of the 74 PowerSharesETFs, mentioned below, began trading on NYSE Arca this morning as an exclusive primary listing.PowerShares is one of the leaders in the ETF marketplace. For more information, please visit: http://www.invescopowershares.com/

Name and ticker symbol of the 74 Rydex ETFs moving to NYSE Arca from NYSE Alternext US:

Background on NYSE Arca-Listed ETFs and ETNs

Exchange traded products listed on NYSE Arca represent 59% of ETF and ETN assets under management in the U.S., nearly $353 billion, the most of any exchange. As the first fully electronic platform to utilize designated liquidity providers, NYSE Arca sets the national best bid and offer nearly 83% of the time, leading all U.S. exchanges. NYSE Arca remains an established leader in the ETF and ETN marketplace offering investors some of the industry’s fastest and most innovative trading tools to access liquidity. Including today’s listings, NYSE Arca has 423primary ETF listings. Additionally, NYSE Arca lists 82 ETNs and 18 certificates and trades all other eligible ETFs on a UTP basis.

About NYSE Euronext

NYSE Euronext (NYX) is the world’s leading, most liquid and diverse exchange group. It offers a broad and growing array of financial products and services in cash equities, futures, options, exchange-traded products, bonds, market data, and commercial technology solutions, all designed to meet the evolving needs of issuers, investors and financial institutions. Spanning multiple asset classes and six countries, NYSE Euronext’s exchanges include the New York Stock Exchange, Liffe, Euronext and NYSE Arca. With more than 6,500 listed issues, more than any other exchange group, trading on NYSE Euronext’s equity markets represents more than one-third of the world's cash equities volume. NYSE Euronext also manages the leading European derivatives exchange by value of trading. NYSE Euronext is part of the S&P 500 index and the only exchange operator in the S&P 100 index. For more information, please visit www.nyx.com.

Cautionary Note Regarding Forward-Looking Statements

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 2007 ("document de référence") filed with the French Autorité des Marchés Financiers (Registered on May 15, 2008 under No. R. 08-054), 2007 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.