A new report gives added ammunition to the champions of passive investing.

Active managers in almost all categories underperformed their respective benchmarks for the trailing 12 months, according to results from Standard & Poor's Indices Versus Active (SPIVA), which keeps score in the passive-versus-active debate.

Subscribe Now

Access to premium content including in-depth coverage of mutual funds, hedge funds, 401(K)s, 529 plans, and more.

3-Week Free Trial

Insight and analysis into the management, marketing, operations and technology of the asset management industry.