Investor News

NEW YORK – June 1, 2010 – MSCI Inc. (NYSE: MXB), a leading global provider of investment decision support tools, including indices and portfolio risk and performance analytics, today announced that it has completed its acquisition of RiskMetrics Group, Inc. Under the terms of the transaction, each outstanding share of RiskMetrics common stock not held by MSCI, RiskMetrics or any of their subsidiaries has been converted into the right to receive a combination of 0.1802 of a share of MSCI's Class A common stock and $16.35 in cash, without interest.

"Today, we take another significant step forward in our ambition to become the leading provider of mission-critical investment decision support tools to investors globally," said Henry Fernandez, Chairman and CEO of MSCI. "The addition of RiskMetrics greatly expands our capabilities in the high growth, high margin business of multi-asset class risk management analytics. Recent events continue to demonstrate the importance of managing risk in today's financial markets and our clients will benefit from our company's expanded product range and enhanced risk management offerings."

"MSCI now has annualized revenues of more than $750 million and more than 2,000 employees worldwide. Our increased scale and scope will enable us to invest more in developing new products and capabilities for our clients which should, in turn, lead to additional growth for our shareholders," added Mr. Fernandez.

In conjunction with the acquisition of RiskMetrics Group, Inc., MSCI also announced that it has raised $1.375 billion of debt financing, including a $1.275 billion term loan and a $100 million undrawn revolving credit facility. The additional capital was used to fund the acquisition of RiskMetrics as well as to repay all prior outstanding terms loans of both MSCI and RiskMetrics.

For RiskMetrics Shareholders

MSCI has appointed Mellon Shareowner Services as exchange agent in connection with the merger. RiskMetrics registered stockholders with questions regarding the exchange of their RiskMetrics common stock for the merger consideration should contact Mellon Shareowner Services at 1-800-777-3674 (toll free) or 1-201-680-6579 (outside of the U.S.). Additional information will also be mailed to RiskMetrics registered stockholders. RiskMetrics stockholders who hold stock through a broker or bank should receive information regarding the exchange or conversion of their shares from the party holding their shares.

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; CFRA forensic accounting risk research, legal/regulatory risk assessment, and due-diligence; and FEA valuation models and risk management software for the energy and commodities markets. MSCI Inc. is headquartered in New York, with research and commercial offices around the world.

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

Forward-Looking Statements

This document contains forward-looking statements. These statements relate to future events or to future financial performance and involve known and unknown risks, uncertainties and other factors that may cause MSCI's, RiskMetrics and the combined company's actual results, levels of activity, performance, or achievements to be materially different from any future results, levels of activity, performance, or achievements expressed or implied by these forward-looking statements. In some cases, you can identify forward-looking statements by the use of words such as "may," "could," "expect," "intend," "plan," "seek," "anticipate," "believe," "estimate," "predict," "potential," or "continue" or the negative of these terms or other comparable terminology. You should not place undue reliance on forward-looking statements because they involve known and unknown risks, uncertainties and other factors that are, in some cases, beyond MSCI's, RiskMetrics and the combined company's control and that could materially affect actual results, levels of activity, performance, or achievements. Such risks, uncertainties and factors include, but are not limited to: the risk that a condition to closing of the proposed merger may not be satisfied; the risk that a regulatory approval that may be required for the proposed merger is not obtained or is obtained subject to conditions that are not anticipated; the failure to consummate or delay in consummating the proposed merger for other reasons; the combined company's ability to achieve the synergies and value creation contemplated by the proposed merger; the combined company's ability to promptly and effectively integrate the businesses of RiskMetrics and MSCI; and the diversion of management time on merger-related issues.

Other factors that could materially affect MSCI's, RiskMetrics' and the combined company's actual results, levels of activity, performance or achievements can be found in MSCI's Annual Report on Form 10-K for the fiscal year ended November 30, 2009 and filed with the SEC on January 29, 2010, in RiskMetrics' December 31, 2009 Annual Form 10- K and Form 10-K/A which were filed with the SEC on February 24, 2010 and April 30, 2010, respectively, and in their respective quarterly reports on Form 10-Q and current reports on Form 8-K. If any of these risks or uncertainties materialize, or if MSCI's or RiskMetrics' underlying assumptions prove to be incorrect, actual results may vary significantly from what MSCI or RiskMetrics projected. Any forward-looking statement in this release reflects MSCI's or RiskMetrics' current views with respect to future events and is subject to these and other risks, uncertainties and assumptions relating to MSCI's or RiskMetrics' operations, results of operations, growth strategy and liquidity. MSCI and RiskMetrics assume no obligation to publicly update or revise these forward-looking statements for any reason, whether as a result of new information, future events, or otherwise.

MSCI Inc. contact:
Edings Thibault
MSCI
New York +1.866.447.7874
www.mscibarra.com

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