Turnover

Before you rely on it

What to check

Read it alongside the account type.

The common error

Where people go wrong with turnover

Ignoring turnover in a brokerage account. The same fund costs meaningfully more there than inside a shelter, with an identical published expense ratio.

Worked through

Turnover in plain numbers

A fund with $100 million in average assets sells and buys $30 million of holdings in a year. Turnover is $30 million ÷ $100 million, or 30%, which implies an average holding period of roughly three and a third years. A fund that turns over 150% replaces its portfolio one and a half times a year; each trade carries commissions, the gap between buying and selling prices and, in a taxable account, possible capital gains distributions. An index fund often runs at 5% or 10%, and an active fund at a much higher figure. High turnover is not automatically bad. It is a cost you should expect the results to cover.

Easily confused

Turnover and its neighbours

Portfolio turnover is not the same as inventory turnover or employee turnover, the other common uses of the word. In funds it measures how much of the portfolio is traded; it is not part of the expense ratio, since trading costs are paid inside the fund and are not listed as a line item; it is also different from turnover in accounting, which sometimes means revenue. Turnover is measured as the lesser of purchases or sales divided by average assets, over a year.

In real decisions

Where turnover turns up

Investors check turnover in a fund's prospectus or annual report. Low turnover often signals a buy-and-hold or index approach with lower hidden costs and better tax efficiency. High turnover shows an active strategy; comparing turnover with returns after costs helps judge whether the trading adds value. Tax-aware investors prefer lower turnover in taxable accounts.

Know the edges

Where turnover stops being reliable

The number does not say how costly the trades were or whether they were wise. Funds can turn over for reasons unrelated to skill, such as inflows and outflows. Some strategies naturally trade often. Compare funds of the same type. Consider total costs and net returns, not turnover alone.

Quick answers

What people ask about turnover

Where do I find a fund's turnover? In the prospectus and annual report, usually as a percentage. Fund websites and data providers list it as well.

What is a high turnover? Above about one hundred percent is high, meaning the fund replaced its portfolio in a year. Index funds are often below ten percent.

Does turnover affect taxes? Yes, in taxable accounts. Frequent selling can create capital gains distributions that you pay tax on, even if you did not sell shares.

Does low turnover guarantee better returns? No. It lowers costs and taxes, but skill and strategy still matter. Compare after-cost returns.

Is turnover the same as trading volume? No. Turnover measures how much of a fund's own portfolio is traded in a year. Trading volume is how many shares change hands in a market.