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CRSP Research Data Products are relied on by more than 600 subscribers, including major financial firms, government entities and leading research universities across 35 countries. CRSP data supports:
Academics whose research and publications must withstand rigorous analysis for accuracy
Quantitative analysts in the commercial market who perform backtesting and modeling calculations.
Regulators and policy makers, requiring complete data sets as the basis for financial and economic research.
As communicated previously, CRSP has migrated to a new back office and introduced the Stock & Indexes Flat File Format 2.0 (CIZ) in the summer of 2022. Subscribers are required to migrate to CIZ, as the December 2024 data which was released in January 2025, was the last release of datasets produced in the Legacy (FIZ) and Flat File Format 1.0 (SIZ) formats.
Additional reference materials and resources can be found in the Documents & Resources section of the CRSP US Stock Databases landing page.
The difference is clear.
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