• The 90/10 retirement investment strategy involves investing 90% of investment capital in low-cost S&P 500 index funds, and the remaining 10% in short-term government bonds.

  • In a letter to Berkshire Hathaway shareholders, Warren Buffett lays out his plans to follow the 90/10 rule for his wife’s inheritance, which will be invested 90% in an S&P 500 index fund and 10% in government bonds.
  • The 90/10 investment rule is a recommended benchmark that investors can easily change to reflect their investment risk tolerance.