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.

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CRSP Market Indexes Breakpoints for Q1 2025
CRSP Market Indexes (CRSPMI) announces the market cap breakpoints and effective ranking dates for its March 2025 quarterly index rebalancing. To view the full chart, click here.