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Annual Changes to the NASDAQ OMX US Water Index


NEW YORK, June 11, 2012 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ) announced today the results of the annual evaluation of the NASDAQ OMX US Water IndexSM (Nasdaq:GRNWATUSL), which will become effective prior to market open on Monday, June 18, 2012.

The following security will be added to the Index: Xylem Inc. (XYL UN).

The Index is designed to track the performance of the companies creating products that conserve and purify water for homes, businesses, and industries which are listed on a US Exchange. The Index is weighted in such a matter as to enhance the underlying liquidity and increase the tradability of the Index Securities. The NASDAQ OMX US Water Index is evaluated annually in June. For more information about the NASDAQ OMX US Water Index, including detailed eligibility criteria, visit

The NASDAQ OMX US Water Index is the basis for the PowerShares Water Resources Portfolio (NYSE:PHO), an exchange-traded fund which seeks investment results that correspond generally to the price and yield of the NASDAQ OMX US Water Index before fees and expenses.

As a result of the evaluation, the following two securities will be removed from the Index: ITT Corp. (ITT UN) and Tri-Tech Holding Inc. (TRIT UN).

About NASDAQ OMX Global Indexes

NASDAQ OMX Global Indexes is engaged in the design, development, calculation, licensing, and marketing of NASDAQ OMX Indexes. NASDAQ OMX Global Indexes specializes in the development of indexes focusing on NASDAQ OMX's brand themes of innovation, technology, growth, and globalization. NASDAQ OMX Global Indexes also provides custom index services and design solutions as a third-party provider to selected financial organizations. For more information about NASDAQ OMX indexes, visit

About NASDAQ OMX Group

The inventor and transformer of the electronic exchange, The NASDAQ OMX Group, Inc., fuels economies with revolutionary technologies for the entire lifecycle of a trade - from risk management to trade to surveillance to clearing. In the US and Europe, we own and operate 24 markets, 3 clearinghouses and 6 central securities depositories supporting equities, options, fixed income, derivatives, commodities, futures and structured products. Able to traffic more than 1 million messages per second at sub-80 microsecond speeds with 99.999% uptime, our technology drives more than 70 exchanges in 50 developed and emerging countries into the future, powering 1 in 10 of the world's securities transactions. Our award-winning data products and worldwide indexes are the benchmarks in the financial industry. Home to 3,400 listed companies worth $5.1 trillion in market cap whose innovations shape our world, we give the ideas of tomorrow access to capital today. Welcome to where the world takes a big leap forward, daily. Welcome to the NASDAQ OMX Century. To learn more, visit Follow us on Facebook ( and Twitter ( (Symbol: NDAQ and member of S&P 500)

Neither The NASDAQ OMX Group, Inc. nor any of its affiliates (collectively "NASDAQ OMX") makes any recommendation to buy or sell any security or any representation about the financial condition of any company. Investors should undertake their own due diligence and carefully evaluate companies before investing.


CONTACT: NASDAQ Media Contact: Wayne Lee +1.301.978.4875 Wayne.D.Lee@NASDAQOMX.Com NASDAQ Issuer and Investor Contact: Lisa Chaney +1.301.978.8281 Lisa.Chaney@NASDAQOMX.Com

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