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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.

CRSP Data Supports:

  • Academic researchers who publish in peer-reviewed journals and require transparent, historically accurate data that meets the highest standards of scholarly scrutiny.
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  • Regulators and policymakers who use CRSP datasets as the foundation for financial and economic research that guides policy.
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>>

CRSP Research Data Products

CRSP US Stock Databases

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CRSP/Compustat Merged Database

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CRSP/Ziman Real Estate Database

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CRSPRDP News & Updates

April 2026 CRSP Market Indexes Methodology Guide Updates

The April 2026 CRSP Market Indexes Methodology Guide is now available at crsp.org/indexes/crsp-market-indexes-methodology. [...]

CRSP Market Indexes Notification – Changes to Index Governance

Beginning July 1, 2026, governance of the CRSP Market Indexes will transition to the standard Morningstar Indexes Governance framework, replacing the governance authorities and procedures currently outlined in the CRSP [...]

CRSP Market Indexes Notification – CRSP ISS ESG Indexes Termination

As of July 1, 2026, CRSP will terminate the calculation and publication of the CRSP ISS ESG Indexes. [...]
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