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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.

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

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News & Updates

Lessons from the Markets

Mark Carhart, PhD ’95, reflects on his Booth experience, his research that led to the CRSP Mutual Fund Database, and why index investing remains the best long-term strategy. [...]

Seeing Through the Fog of Market History

“The farther backward you can look,” Winston Churchill once famously said, “the farther forward you can see.” It’s a sentiment that’s as true for investors and market researchers as it [...]

Morningstar Plans to Acquire CRSP

We are pleased to share some exciting news about the Center for Research in Security Prices (CRSP): The University of Chicago, home to CRSP, and Morningstar, Inc. today signed an [...]
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