- A long term chart of portfolio turnover for US based mutual funds.
- 1975 saw a big rise as trading commissions were de-regulated and bid-ask spreads were moved from 1/8th basis.
- The next 30 years has seen a precipitous decline.
- NB. Turnover is defined as the lower of the total amount of securities purchased/sold divided by total net asset value of the fund.
- Source.
Portfolio Turnover
