MSCI Inc. Reports Record Revenues for Second Quarter 2008

Business Wire, July 2, 2008

Notes Regarding the Use of Non-GAAP Financial Measures

Adjusted EBITDA

Adjusted EBITDA is defined as income before interest income, interest expense, other income, provision for income taxes, depreciation, amortization and founders grant expense. Adjusted EBITDA is not presented as an alternative measure of operating results, as determined in accordance with accounting principles generally accepted in the U.S. Rather, we believe adjusted EBITDA is one additional measure that investors use to evaluate companies, like our company, that have substantial amortization of intangible assets included in their statement of income. This is particularly relevant to a company in our industry because we do not believe other companies in our industry have as significant a proportion of their operating expenses represented by amortization of intangible assets and one-time founders grant as we do. As stated above, adjusted EBITDA excludes expense for the one-time $68.0 million founders grant which is being amortized through 2011. Management believes that it is useful to exclude the founders grant expense in order to focus on what is deemed to be a more reliable indicator of ongoing operating performance. Amortization expense for the one-time $68.0 million founders grant, representing restricted stock units and options awarded to employees effective with the IPO, is expected to be amortized through 2011.

Additionally, our management uses adjusted EBITDA to compare MSCI to other companies in the same industry when evaluating relative performance and industry development. Adjusted EBITDA as presented herein, however, may not be comparable to similarly titled measures reported by other companies. Adjusted EBITDA is a non-GAAP measure that should not be considered as an alternative to net income, as an indication of financial performance or as an alternative to cash flow from operations as a measure of liquidity.

Operating Expenses excluding Founders Grant

Operating expenses excluding founders grant (described above), cost of services expenses excluding founders grant, and selling, general, and administrative expenses excluding founders grant are deemed to be a more reliable indicator of ongoing expense trends. Management believes that it is useful to exclude founders grant expenses from operating expenses because the founders grant was a one-time event, although the amortization expense of the award will be recognized over two to four years.