NEW YORK, June 14, 2013 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ), parent of the world's first electronic stock market and a leading index provider, today announced the results of the annual evaluation of the NASDAQ OMX US Water Index (Nasdaq:GRNWATUSL), which will become effective prior to market open on Monday, June 24, 2013. The following two securities will be added to the Index: Connecticut Water Service, Inc. (Nasdaq:CTWS) and Roper Industries, Inc. (NYSE:ROP). The NASDAQ OMX US Water 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 an US Exchange. The Index is weighted in such a matter as to enhance the underlying liquidity and increase the tradability of the Index Securities. As a result of the evaluation, the following security will be removed from the Index: Cadiz Inc. (Nasdaq:CDZI). About NASDAQ OMX Global Indexes NASDAQ OMX Global Indexes has been creating innovative, market-leading, transparent indexes since 1971. Today, our index offering spans geographies and asset classes and includes diverse families such as the Dividend Achievers, Global, Nordic, Green Economy, Sharia and Commodity Indexes. We continuously offer new opportunities for financial product sponsors across a wide-spectrum of investable products and for asset managers to measure risk and performance. NASDAQ OMX Global Indexes also provides custom index services and design solutions to selected financial organizations. For more information about NASDAQ OMX Global Indexes, visit indexes.nasdaqomx.com. Daily index values, weightings and historical data for NASDAQ OMX indexes are available via NASDAQ OMX Global Index Watch and NASDAQ OMX Global Index Data Service. About NASDAQ OMX Group The inventor of the electronic exchange, The NASDAQ OMX Group, Inc., fuels economies and provides transformative technologies for the entire lifecycle of a trade - from risk management to trade to surveillance to clearing. In the U.S. and Europe, we own and operate 23 markets, 3 clearinghouses and 5 central securities depositories supporting equities, options, fixed income, derivatives, commodities, futures and structured products. Able to process more than 1 million messages per second at sub-40 microsecond speeds with 99.99+% uptime, our technology drives more than 70 marketplaces 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 over 3,300 listed companies worth more than $6 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 www.nasdaqomx.com. Follow us on Facebook ( www.facebook.com/NASDAQ) and Twitter ( www.twitter.com/nasdaqomx). (Symbol: NDAQ and member of S&P 500) The information contained above is provided for informational and educational purposes only, and nothing contained herein should be construed as investment advice, either on behalf of a particular financial product or an overall investment strategy. Neither The NASDAQ OMX Group, Inc. nor any of its affiliates makes any recommendation to buy or sell any financial product or any representation about the financial condition of any company or fund. Statements regarding NASDAQ's proprietary indexes are not guarantees of future performance. Actual results may differ materially from those expressed or implied. Past performance is not indicative of future results. Investors should undertake their own due diligence and carefully evaluate companies before investing. ADVICE FROM A SECURITIES PROFESSIONAL IS STRONGLY ADVISED.