NOTICE: As of 2/2/2026, Morningstar has completed the acquisition of the Center for Research in Security Prices (CRSP). Learn more >>

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CRSP is recognized as the leading provider of research-quality historical market and returns data. CRSP Research Data Products is trusted by more than 600 institutions across 35 countries. Our subscribers include leading financial firms, government agencies, and respected research universities that rely on CRSP Research Data Products for serious analysis and strategic decision-making.

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CRSP pioneered research-quality stock market data more than 65 years ago. Today, that legacy continues in support of serious institutions that rely on accuracy, transparency, and long-term insight.

PERMNO® is CRSP’s proprietary, permanent identifier used to track U.S.-listed equities over time and across corporate restructurings. Unlike ticker symbols, which can change, each PERMNO remains fixed for the life of a security. It accounts for name changes, mergers, acquisitions, spin-offs, and other business events and allows researchers and analysts to follow securities with historical continuity and accuracy. Learn more>>

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CRSP/Ziman Real Estate Database

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CRSPRDP News & Updates

Vanguard to Update Names of U.S. Equity Index Funds Tracking Morningstar Indexes

VALLEY FORGE, PA (April 29, 2026)—Following Morningstar’s rebranding of the CRSP Market Indexes to Morningstar Indexes, Vanguard today announced upcoming changes to the names of multiple Vanguard U.S. equity index [...]

Morningstar Reaches New Milestone in the CRSP Acquisition, Rebranding CRSP Market Indexes to Morningstar Indexes

The rebrand of the CRSP indexes, with over $3 trillion in AUM benchmarked, solidifies Morningstar’s position as one of the top tier index providers and is an important new milestone [...]

CRSP Market Indexes Notification – Index Name Change Notice

Morningstar Indexes is changing the names of the CRSP Market Indexes. These changes will align the individual index names with the standard Morningstar naming convention. Morningstar will implement the name [...]
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