A bit old news, but here are 2017 risk/return metrics for the top 10 US funds by assets under management (AUM), sorted by AUM. Eight index funds. Two ETFs SPY and IVV. Six Vanguard funds. The two actively managed funds, both American Funds, generate the about same fee annually $2.5B as the six Vanguard funds combined (click on image to enlarge).
Similarly, here they are for the top fund by AUM in each of Lipper’s 155 categories, sorted by category.