Most fund managers trail S&P 500 as simple strategy outperforms

A report by S&P Dow Jones Indices reveals that 90% of active fund managers have underperformed the S&P 500 over the past 15 years. Advocates like Brian Preston and Warren Buffett recommend dollar-cost averaging into low-cost S&P 500 index funds as an effective long-term strategy. Additionally, some analysts suggest that diversifying assets may help reduce volatility and concentration risk for investors nearing retirement.