That allows them to keep costs low, and passive funds kept $15 in fees on every $10,000 invested last year. Among all the other funds, investors yanked out a total of $478 billion. The average actively managed fund still charges about 1.8 times as much as the average index fund. Some "low volatility" funds track indexes that include only stocks with smaller swings in price than the broad market, for example. That's in between the $8 for traditional stock index funds and the $70 for actively managed stock funds.
Source: Fox News April 30, 2019 11:42 UTC