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CRSP Count™ Quarterly Update – March 2023

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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    News & Updates

    What “Owning the Market” Really Means

    While the debate surrounding the merits of passive investing has long been settled—as more money continues to reside in index funds than actively managed ones—the argument over what it means [...]

    ETFGI TV Interview: Paul Lohrey on Index Representation

    As markets evolve, so too must the tools we use to measure them. In this exclusive segment with ETFGI TV, Paul Lohrey, Managing Director of Strategy and Analytics at CRSP, [...]

    CRSP Market Indexes – Micro Cap Securities to be Removed from Sector Indexes

    Beginning with the December 2025 ranking, the CRSP US Core Cap Index will replace the CRSP US Total Market Index as the parent index for all CRSP US Sector Indexes. [...]

    CRSP Market Indexes Breakpoints for Q3 2025

    CRSP Market Indexes (CRSPMI) announces the market cap breakpoints and effective ranking dates for its September 2025 quarterly index rebalancing. [...]

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

    CRSP US Mid Cap Index Outperforms Peers

    Why do some mid- and small-cap ETFs outperform others? A recent article from ETF.com highlights how benchmark index construction and methodology—especially market cap definitions—can significantly impact ETF performance. [...]

    CRSP Market Indexes – PFICs to be Removed from Index Eligibility

    Passive Foreign Investment Companies (PFICs), as defined by the IRS, will no longer be eligible for inclusion in the CRSP US Market Indexes. [...]

    CRSP Market Indexes US Market Update – Q2 2025

    Notable items with this release include: - Markets broadly rallied throughout Q2, with every Cap and Style Index posting gains over the previous 3 months. - Growth largely outperformed Value [...]

    Comment on CRSP CIZ Monthly Return

    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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