Despite the popularity of one-stop target date funds, about 63% of retirement plan participants still choose their own investments. But the average investor earned significantly less than the stock or bond market averages.
According to a 2016 Dalbar research study, the average equity investor received a 4.23% average annual return over the past 10 years ending December 31, 2015. That compares to a 7.31% average annual return over the same time period for the S&P 500, an index that is seen by many as reflective of the overall stock market.
It's even worse over 30 years, with an average investment return gap of 6.69% per year.
And it's not limited to the more volatile stock market. Over the same 10 years, the average fixed income investor received 0.39% per year vs 4.51% for the comparable Bloomberg Barclay's Aggregate Bond Index.