Active Share data on individual U.S. equity mutual funds is available here:


Data for academic purposes is provided below.


Active Share

Both of the following files contain end-of-quarter data on Active Share for U.S. equity mutual funds, measured following Cremers and Petajisto (2009) and Cremers (2017) for all funds in the database, regardless of style.

The Stata code that generated these active share files—written by Tim Riley at University of Arkansas—is available for download (Thomson Reuters and CRSP). We are unable to respond to requests for technical support related to the code, but if you identify any major errors, please inform us.


Benchmark Mismatch

This file contains end-of-quarter data on Benchmark Mismatch measured following Cremers, Fulkerson, and Riley (2022). The set of benchmarks includes the S&P 500, 400, and 600; the Russell 1000, 2000, 3000, and Midcap; and the value and growth components of those benchmarks. The time period is March 1979 through September 2021, but not all benchmarks are available over the full period. When a benchmark is not available, the observation is set to missing.