KEY POINTS
  • The stock market won't keep returning the kinds of yearly gains investors have gotten used to, according to Vanguard's Greg Davis.
  • "Our expectations around U.S. equity markets is for about a 5 percent median, annualized return," says the fund group's CIO.

The stock market won't keep returning the kinds of yearly gains investors have gotten used to since the financial crisis bottom in 2009, Vanguard's chief investment officer, Greg Davis, said.

"If we look forward for the next 10 years, our expectations around U.S. equity markets is for about a 5 percent median annualized return," he told CNBC on Monday. "Five years ago, we'd have been somewhere in around 8 percent."