The 90/10 rule is an investment allocation strategy that allocates 90% of a portfolio to equities and 10% to short-term fixed-income instruments. The strategy was popularized by Warren Buffett in his 2013 letter to Berkshire Hathaway shareholders. There, he outlined instructions for the cash bequest left in a trust for his wife after his death: […] The post 90/10 Rule: Investor Uses and the Warren Buffett Example appeared first on SmartReads by SmartAsset .