The Biggest Antitrust Story You’ve Never Heard Of.

"There’s no question that institutional investors are on a steady, inexorable rise: Since 1970, the share of the American stock market owned by large investment firms has grown from 7% to 70%. Collectively, the three biggest private funds — BlackRock, Vanguard, and State Street — own more than any other single shareholder in 40% of the public companies in the U.S."

https://www.gsb.stanford.edu/insights/biggest-antitrust-story-youve-never-heard