MSCI to Change Ticker Symbol to ‘MSCI’ as of July 6, 2010

MSCI Inc. (NYSE: MXB), a leading global provider of investment decision support tools, including indices, portfolio risk and performance analytics and corporate governance services, today announced that it will change the ticker symbol for its common stock listed on the New York Stock Exchange to “MSCI” from “MXB,” effective at the start of trading on Tuesday, July 6, 2010.

“For over 40 years, MSCI has been at the forefront of measuring both risk and return within the global equity markets. Our product offering has expanded to include such powerful brands as Barra and FEA and, most recently, RiskMetrics, ISS and CFRA. The new ticker symbol honors our company’s heritage and internationally recognized brand, which is widely known and respected among financial market participants,” said Henry Fernandez, Chairman and Chief Executive Officer of MSCI.

About MSCI Inc.

MSCI Inc. is a leading provider of investment decision support tools to investors globally, including asset managers, banks, hedge funds and pension funds. MSCI Inc. products and services include indices, portfolio risk and performance analytics, and governance tools.

The company’s flagship product offerings are: the MSCI indices which include over 120,000 daily indices covering more than 70 countries; Barra portfolio risk and performance analytics covering global equity and fixed income markets; RiskMetrics market and credit risk analytics; ISS out-sourced proxy research, voting and vote reporting services; FEA valuation models and risk management software for the energy and commodities markets and CFRA forensic accounting risk research, legal/regulatory risk assessment, and due-diligence. MSCI Inc. is headquartered in New York, with research and commercial offices around the world. MXB#IR

For further information on MSCI Inc. or our products please visit www.msci.com.