Michael Burry big short
Michael Burry attends the "The Big Short" New York premiere at Ziegfeld Theater on November 23, 2015 in New York City.
  • Investors would have made more money buying the S&P 500 than following Michael Burry's stock-market warnings, said Charlie Bilello, chief market strategist at Creative Planning.
  • The index had an "average 6-month annualized gain of 34%" in the periods following a selection of 2019-2023 Burry tweets, he said.
  • "Don't make changes in your portfolio based on a tweet," he said in a post on X. 

Investors would have been better off buying the S&P 500 instead of adjusting their portfolios in response to "Big Short" investor Michael Burry's stock-market warning tweets in recent years, according to one markets expert.