The Quants Run Wall Street Now | WSJ

From Gregory Zuckerman and Bradley Hope:

For decades, investors imagined a time when data-driven traders would dominate financial markets. That day has arrived.

…. quantitative hedge funds are now responsible for 27% of all U.S. stock trades by investors, up from 14% in 2013, according to the Tabb Group, a research and consulting firm in New York.

Quants now dominate the short-term trading market but active managers (homo sapiens) are still very dominant in the much larger long-term investment market. And this is unlikely to change any time soon.

Source: The Quants Run Wall Street Now – WSJ