Investor News

New York – November 14, 2007 - MSCI Inc. announced today that its initial public offering of 14,000,000 shares of its class A common stock has been priced at $18.00 per share. The shares are expected to begin trading tomorrow, November 15, 2007, on the New York Stock Exchange under the symbol "MXB." The underwriters have been granted a 30-day option to purchase up to 2,100,000 additional shares of class A common stock at the public offering price less the underwriting discount from MSCI if the underwriters sell more than 14,000,000 shares in the offering. Morgan Stanley is the sole book-runner for the offering. Banc of America Securities LLC, Credit Suisse, Merrill Lynch & Co. and UBS Investment Bank are acting as co-managers.

A copy of the prospectus relating to these securities may be obtained when available from:

Morgan Stanley & Co. Incorporated
180 Varick Street
New York, New York 10014
Attention: Prospectus Department
E-mail: prospectus@morganstanley.com

The final prospectus, when it is available, also may be obtained on the Securities and Exchange Commission's Web site at http://www.sec.gov.

About MSCI Inc.

MSCI Inc. is a leading provider of investment decision support tools to investment institutions worldwide. MSCI Inc. products include indices and portfolio analytics for use in managing equity, fixed income and multi-asset class portfolios.

The company's flagship products are the MSCI International Equity Indices, which are estimated to have over USD 3 trillion benchmarked to them, and the Barra risk models and portfolio analytics, which cover 56 equity and 46 fixed income markets. MSCI Inc. is headquartered in New York, with research and commercial offices around the world. Morgan Stanley, a global financial services firm, is the majority shareholder of MSCI Inc.
MXB#IR

MSCI Contact:
Ken O'Keeffe, MSCI, New York + 1.212.804.1583
For media enquiries please contact:
Steve Bruce | Pen Pendleton | Ann Taylor Reed, Abernathy MacGregor, New York + 1.212.371.5999
Sally Todd | Clare Milton, Penrose Financial, London + 44.20.7786.4888