Commonfund Study of Independent School Endowments

If you or your school's investment committee are looking to assess your endowment's returns, spending policy or investment allocations, look no farther than the Commonfund Benchmarks Study of Independent Schools. The only report of its kind, this research from Commonfund Institute, conducted in partnership with NBOA, outlines the latest trends and analysis of: 

  • Total returns
  • Asset allocation
  • Spending-and-fund flow
  • Responsible investing
  • Investment management.

This year's report shows longer-term returns are "decisively positive," with 15-year returns near or above 8% across all endowment sizes. Read the report to understand how your school's endowment is performing in context of similar sized endowments and national practices. 

NBOA MEMBERS: BE SURE TO SIGN IN FOR THE NEWEST VERSION OF THIS REPORT. THE NONMEMBER REPORT IS FROM 2021.

Released: 2026

Cover the Commonfund Study of Independent School Endowments
Download Members log in here for member access.
Members report year: 2025  |  Nonmembers report year: 2021