How AI Will Invade Every Corner of Wall Street

  • Machine learning may have hand in 99% of investing, CEO says
  • This story is part of a series on the future of investing
Illustration: Kevin Hong

It was AI versus Warren Buffett.

The artificial intelligence was unleashed by Winton, the London hedge fund, to test an old principle of the Berkshire Hathaway Inc. chairman with a view to trading on it: that major acquisitions usually hurt the buyers’ shareholders. Researchers collected and analyzed data on almost 9,000 U.S. deals back to the 1960s.