NEW YORK, May 20, 2013 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ) and CRD Analytics announced today the results of the semi-annual re-ranking of the NASDAQ OMX CRD Global Sustainability Index (Nasdaq:QCRD), which will become effective prior to market open on Monday, May 20, 2013. The following six securities will be added to the Index: Albemarle Corporation (NYSE:ALB), Air Products and Chemicals, Inc. (NYSE:APD), CRH public limited company (NYSE:CRH), Potash Corporation of Saskatchewan Inc. (NYSE:POT), Praxair, Inc. (NYSE:PX) and Vale S.A. (NYSE:VALE). The NASDAQ OMX CRD Global Sustainability Index (Nasdaq:QCRD) is an equally weighted equity index that serves as a benchmark for stocks of companies that are taking a leadership role in Sustainable Development and are traded on a major US stock exchange. The Index is made up of companies that have taken a leadership role in both the strategic design and the operational performance of key indicators such as carbon footprint, energy usage, water consumption, waste recycling, risk mitigation, employee safety, workforce diversity, employee training, board composition & structure, pay for performance and community investing. These are companies that are voluntarily disclosing their current environmental, social and governance risks as well as their revenue opportunities and how it will affect future performance. The securities must also meet other eligibility criteria which include minimum requirements for market value, average daily share volume, and price. The Index is evaluated on a semi-annual basis in May and November. For more information about the NASDAQ OMX CRD Global Sustainability Index, including detailed eligibility criteria, visit https://indexes.nasdaqomx.com/ . As a result of the re-ranking, the following six securities will be removed from the Index: Dell Inc. (Nasdaq:DELL), EMC Corporation (NYSE:EMC), Motorola Solutions, Inc. (NYSE:MSI), Reed Elsevier PLC (NYSE:RUK), STMicroelectronics N.V. (NYSE:STM) and Wipro Limited (NYSE:WIT).