Changes to CRSP Data

New CRSP US Stock & Indexes Database Format

CRSP has enhanced its system with a new Stock & Indexes Flat File Format 2.0 (CIZ). Version 1 (SIZ) is being discontinued and users will need to utilize the new format to continue receiving updated data.

Data Release

December 2024 data will go live in February 2025. This is the last release of datasets produced in the legacy flat file format 1.0 (SIZ).

Document Guides available for Flat File Format 2.0 (CIZ)

  1. Overview of Stock – Documentation to begin updating your code for new table and variable names.
  2. Transition FAQ – Details on the SIZ to CIZ Transition.
  3. Sample Code – Sample programs for common tasks.
  4. Overview of Index – SIZ to CIZ transition for the Index Databases.
  5. Executive Summary of Differences – Details of Flat File Format 1.0 SIZ and Flat File Format 2.0 (CIZ). Source: CRSP
  6. Cross Reference Guide – Assistance with the transition from Flat File Format 1.0 (SIZ) to new format. Source: CRSP
  7. Recreate Legacy MSE Style Tables – Recreate the legacy MSE style tables using the CIZ data format.
  8. CRSP Metadata Guide – Highlights the 10 metadata files included in Flat File Format 2.0 (CIZ). Source: CRSP
  9. User Guide – A table-by-table listing of data items. Source: CRSP

Coming Soon: On-Demand Webinar and Videos for new CIZ.

Please contact CRSP with any questions | support@crsp.org

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