CRSP US Stock Database

The database that started it all, a unique research source characterized by unmatched breadth and depth

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CRSP is renowned for its expertise in building and maintaining historical, academic, research-quality stock market databases.

Key Features

Documents & Resources

User Guide

A table by table listing of data items with short definitions

Data Descriptions

A detailed guide of definitions, calculations, methodologies, coding schemes, and database structures


Streamlines ingestion into proprietary systems and online tools

Cross Reference

A how-to guide for transitioning from old to new file formats

Executive Summary

An overview of known differences between old and new file formats; new data items; and new features

Flat File 1.0

Previous version of the user guide

Data Access

Information on data access for this product

Release Notes

Monthly/Quarterly/Annual release notes

CRSP databases are characterized by their comprehensive corporate action information and highly accurate total return calculations.