MSCI Inc., together with its wholly owned subsidiaries (the “Company” or “MSCI”), provides research-based data, analytics and indexes, supported by advanced technology, that set standards for global investors and help our clients understand risks and opportunities, make better investment decisions and unlock innovation. The Company’s products and services include indexes; portfolio construction and risk management tools; sustainability and climate solutions; and private asset data and analytics.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. If not materially different, certain note disclosures included therein have been omitted from these interim condensed consolidated financial statements.

In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim consolidated financial statements, have been included. The results of operations for interim periods are not necessarily indicative of results for the entire year.

The Company’s unaudited condensed consolidated financial statements are prepared in accordance with GAAP. The Company makes certain estimates and judgments that can affect the reported amounts of assets and liabilities as of the date of the unaudited condensed consolidated financial statements, as well as the reported amounts of operating revenues and expenses during the periods presented. Significant estimates and judgments made by management include such examples as assessment of impairment of goodwill and intangible assets and income taxes. The Company believes that estimates used in the preparation of these unaudited condensed consolidated financial statements are reasonable; however, actual results could differ materially from these estimates. Inter-company balances and transactions are eliminated in consolidation.

In the first quarter of 2026, the Company changed the presentation of its financial statements and accompanying footnote disclosure from thousands to millions, and as a result, any necessary rounding adjustments have been made to prior period disclosed amounts.

For the six months ended June 30, 2026 and 2025, BlackRock, Inc. (“BlackRock”) accounted for 11.8% and 10.3% of the Company’s consolidated operating revenues, respectively. For the six months ended June 30, 2026 and 2025, BlackRock accounted for 19.8% and 18.0% of the Index segment’s operating revenues, respectively. No single customer represented 10.0% or more of operating revenues within Analytics, Sustainability and Climate or All Other – Private Assets for the six months ended June 30, 2026 and 2025.