Stock Pickers Never Had a Chance Against Hard Math of the Market

In years like this one, when just a few big companies outperform, it’s hard to assemble a winning portfolio.

Illustration: Hunter French by Bloomberg Businessweek

Consider two assertions about the much-maligned stockpicking industry.

First: Only 1 in 3 active managers can beat a nearly free fund tracking the S&P 500. Second: Active managers taken together possess discernible investing skill.