Mark Zuckerberg stands with his shirt off with UFC legends, Israel Adesanya, left, and Alex Volkanovski
Meta CEO Mark Zuckerberg with the UFC legends Israel Adesanya, left, and Alex Volkanovski.
  • Meta CEO Mark Zuckerberg loves extreme sports and other high-risk activities. 
  • Last year he got hurt while training in mixed martial arts.
  • Now Meta is warning investors that Zuckerberg's risk tolerance could be a problem for the company.

After a rough couple of years, Meta is flying: Revenue is growing again, profits are way up after some painful belt-tightening, and its stock is at a record high.