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CRSPMI Transitional Reconstitution

December 13, 2023 - December 19, 2023

CRSPMI Transitional Reconstitution begins after end of day Wednesday, December 13 and concludes after end of day Tuesday, December 19.

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News & Updates

CRSP Count™ Quarterly Update – March 2025

Using CRSP Market Indexes Methodology, CRSP Count™ tracks changes in the number of securities by market cap segments - Mega, Mid, Small and Micro - through time. [...]

WRDS Research Webinar Series – Flat File Format 2.0 (CIZ)

We are delighted to invite Ph.D. students, faculty members, and friends to a WRDS webinar on the newly released CRSP CIZ (Version 2) data format. [...]

Important Notice: CRSP US Stock & Indexes Databases Flat File Format 2.0 (CIZ)

As communicated previously, CRSP is migrating to a new back office. This requires that subscribers migrate to the Stock & Indexes Flat File Format 2.0 (CIZ), which was made available [...]

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