> equity benchmarks are so reliant on gigantic gains in just a handful of stocks that missing them Perhaps we're witnessing a shift towards an industrial model

> equity benchmarks are so reliant on gigantic gains in just a handful of stocks that missing them Perhaps we're witnessing a shift towards an industrial model where a small number of players control disproportionate amounts of value added in their respective industries. I'd be interested to see historical data for Herfindahl indices for key verticals in the U.S., and globally.