CRSPMI Transitional Reconstitution

September 16, 2026 - September 22, 2026

Begins after end of day Wednesday, September 16 and concludes after end of day Tuesday September 22.

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For more information, visit:
CRSP Market Indexes Methodology or Transitional Reconstitution Calendar.

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News & Updates

CRSP Market Indexes Breakpoints for Q1 2026

CRSP Market Indexes (CRSPMI) announces the market cap breakpoints and effective ranking dates for its March 2026 quarterly index rebalancing. [...]

CRSP Has Moved to Morningstar Headquarters Office

As of Monday, February 2, 2026, CRSP offices are now located at: 22 W. Washington St., Chicago, IL US Phone: +1 312-384-3735 Please update our contact information in your systems. [...]

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. [...]