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Beginning July 28, 2026, all CRSP.org content will be migrated to the Morningstar Indexes website.
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Important Notice: CRSP US Stock & Indexes Databases Flat File Format 2.0 (CIZ)

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.

CRSP Access

The December 2024 data cut that was released in January 2025 was the last release of files for CRSPAccess.

Questions?

Please contact your support representative at support@crsp.org with questions.

News & Updates

CRSP Market Indexes Notification – Reminder: Index Name Change Notice

Morningstar Indexes is changing the names of the CRSP Market Indexes. These changes will align the individual index names with the standard Morningstar naming convention. Morningstar will implement the name [...]

CRSP Market Indexes Notification – CRSPMI Secure Website User Experience & URL Update

Morningstar Indexes is changing the names of the CRSP Market Indexes. These changes will align the individual index names with the standard Morningstar naming convention. Morningstar will implement the name [...]

CRSP Market Indexes Notification – Reminder: Index Name Change Notice

Morningstar Indexes is changing the names of the CRSP Market Indexes. These changes will align the individual index names with the standard Morningstar naming convention. Morningstar will implement the name [...]

CRSP Market Indexes Notification – Consultation Results: Eligible US Exchanges

Following a consultation on exchange eligibility, CRSP Market Indexes will be adding the Texas Stock Exchange (TXSE) as an approved US listing venue across all indexes. TXSE will be eligible [...]

July 2026 CRSP Market Indexes Methodology Guide Updates

The July 2026 CRSP Market Indexes Methodology Guide is now available at crsp.org/indexes/crsp-market-indexes-methodology. [...]

Introducing the New Home for CRSP Research Data Products

As of June 30, 2026, all CRSP Research Data Products content previously available on crsp.org has been migrated to the new Data section on the Morningstar website. This transition reflects [...]

CRSP Market Indexes Notification – Reminder: Index Name Change Notice

Morningstar Indexes is changing the names of the CRSP Market Indexes. These changes will align the individual index names with the standard Morningstar naming convention. Morningstar will implement the name [...]

Big IPO Energy: Making Room for Mega IPOs

From Eligibility to Inclusion: Bringing Clarity to the Mega IPO Debate The debate around mega IPO entry into broad market index families has highlighted how easily key distinctions between index [...]

CME Group and Morningstar Announce Exclusive Index Derivatives Licensing Agreement

Morningstar, a leading provider of independent investment insights, along with CME Group, the world's leading derivatives marketplace, today announced that they have entered into a multi-year licensing agreement for CME [...]
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