NOTICE: As of 2/2/2026, Morningstar has completed the acquisition of the Center for Research in Security Prices (CRSP). Learn more >>

Uniting two trusted sources of market insight and reinforcing a shared commitment to transparency, quality, and investor-focused solutions.

Morningstar Completes Acquisition of CRSP

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CRSP's Research Data Products are Now Available on Snowflake Marketplace!

Instantly access decades of comprehensive financial data.

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Important Notice: CRSP US Stock & Indexes Databases

As previously communicated, CRSP introduced the Stock & Indexes Flat File Format 2.0 (CIZ) in summer 2022. 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.

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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.

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Better Data. Smarter Indexes.

CRSP sets the benchmark for accurate market data and precise market indexes. Over $3 trillion of assets are held in funds linked to CRSP Market Indexes, including the world’s largest mutual fund. CRSP Research Data Products, built on rigorous academic standards, powers market research, economic policy and modeling, and financial analysis and forecasting.

CRSP Market Indexes blend advancements in academic research with industry practice, reflecting the way money managers actually invest.

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CRSP offers research-quality financial and economic data to academic, commercial and government institutions whose research and publications must withstand rigorous analysis for accuracy.

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Overview

CRSP US Stock Databases

CRSP Historical Indexes

CRSP/Compustat Merged Database

CRSP Survivor-Bias-Free US Mutual Fund Database

CRSP US Treasury Database

CRSP/Ziman Real Estate Database

News & Updates

CRSP Count™ Quarterly Update – December 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. [...]

February 6, 2026

Market Indexes, Research Data Products, CRSP Count

CRSP Market Indexes US Market Update – Q4 2025

Notable items with this release include:
- December returns were fairly flat for Cap and Style Indexes
- Value outperformed Growth across the board in Q4, however, [...]