Indexes Win Again

One method that has been used to examine if the stock market is semistrong form efficient is the performance of actively managed mutual funds. A recent study by S&P indicates that most actively managed mutual funds still lag the appropriate market index. From 2011 to 2015, over 88 percent of mutual funds failed to beat the S&P Composite 1500. And 84 percent of large cap funds failed to outperform the S&P 500. In fact, over the past five years, the fund category with the best performance for retail investors relative to its index was the mid-cap value category, with only about 30 percent of mutual funds in that category outperforming the S&P Midcap Value 400. Small cap growth funds were the worst, with only about 8 percent of funds beating the S&P SmallCap 600 Growth index. So, even if you don't believe the stock market is efficient, as this shows, it is very difficult to outperform the stock market.