The latest SPIVA report shows, once again, that gurus who pick stocks and/or time markets are ripping off long-term investors. Only 8.5% of funds in the US large value fund category beat a relevant index. Only 6% of US small value funds met that objective.
This is consistent with Dimensional Fund Advisors' research, which uses CRSP data. Dimensional also reports that "Only 15% of US equity and fixed income funds that were around in 2000 beat an industry benchmark, 15 years later. Over the same time period, 82% of US equity and fixed income Dimensional funds outperformed their benchmarks."