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CRSPMI Transitional Reconstitution September 2025

September 17, 2025 - September 23, 2025

CRSPMI Transitional Reconstitution begins after end of day Wednesday, September 17 and concludes after end of day Tuesday, September 23.

For more information, visit CRSP Market Indexes Methodology.

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. [...]
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, [...]
The 2026 CRSP Market Indexes Methodology Guide is now available. [...]