Mutual fund turnover is calculated as the value of all transactions (buying, selling) divided by two, then divided by a fund's total holdings. Essentially, mutual fund turnover typically measures the replacement of holdings in a mutual fund and is commonly presented to investors as a percentage over a one year period. If a fund has 100% turnover, the fund replaces all of its holdings over a 12-month period.

You may discover that your mutual fund turnover rate is much higher than you expected. According to William Harding, an analyst with Morningstar, the average turnover ratio for managed domestic stock funds is 130%. Keep in mind that analysts typically disagree on most issues. Nonetheless, it is important to consider the turnover ratio before making any new investment decisions or maintaining your current investments. (Learn which fund manager investment style fits your portfolio, read "Mutual Fund Management: Team Players Or All-Stars?")

As is the case with most technical indicators, the value of turnover in your mutual fund is neither a litmus test for making an investment decision nor an indication of future results. As an investor, you should consider other factors in the context of your mutual fund's turnover rate before making any binding or irreversible decision. (If you want to learn more about how mutual funds work, read our Mutual Funds tutorial.)

Value Funds

In general, value funds tend to have lower turnover rates, simply by dint of their investment philosophy: find securities that are undervalued relative to the market, hold them until they appreciate to a targeted value, then sell for a respectable gain. Fundamentally, this is a prudent approach and helps minimize your fund's taxable events and expense ratios. Fewer transactions imply lower trading costs and a smaller short-term capital gain. However, simply investing in funds with low turnover rates is not actually an investment strategy, and it's no excuse for poor performance.

Many investors and money managers who espoused this buy-and-hold, low-turnover approach have seen disappointing results. This is particularly true for those who recently saw "value" in financial stocks. Buying them on the cheap and holding them for a long period may have seemed prudent at the time, but, as the chart below illustrates, some mutual funds (notice the high proportion of specialty-financial funds) with low turnovers rates have underperformed the S&P 500 Index over a five-year period.

Symbol Fund Name Category Turnover (%) Annualized 5 Yr Return (%)
IFSAX AIM Financial Services A Specialty-Financial 15 -5.7
IFSBX AIM Financial Services B Specialty-Financial 15 -6.36
IFSCX AIM Financial Services C Specialty-Financial 15 -6.4
FSFSX AIM Financial Services Inv Specialty-Financial 15 -5.68
LCBBX AIM Large Cap Basic Value B Large Blend 29 -0.18
LCBCX AIM Large Cap Basic Value C Large Blend 29 -0.18
EUEYX Alpine U.S. Real Estate Equity Specialty-Real Estate 49 -0.21
CFIMX Clipper Large Blend 25 -1.73
FSVLX Fidelity Select Home Finance Specialty-Financial 36 -15.55
FEFPX Frontier MicroCap Small Blend 18 -22.48
Source: Yahoo! Finance

Growth Funds

Growth funds, on the other hand, tend to have a higher turnover rate, as their money managers are constantly on the lookout for sectors and securities that are the next leaders in their respective industries. The type of management strategy these funds employ is based on finding undervalued stocks, selling high, and making the most of opportunities, which means there can be a lot of buying and selling during any given year. As implied above, a higher turnover rate means the fund will incur more taxable events, and that is likely to eat into its total return. A high turnover ratio may also indicate that the fund's costs are relatively high even for its category. In any case, high-turnover funds really must outperform value funds if all else is equal.

Similarly to the case with value funds, the turnover rate (high, in this case) is only justified when there is a high investment return. Unfortunately, many fund managers appear to be day-trading in disguise. The chart below shows some high-turnover funds with lackluster five-year returns, all of which lag the S&P 500 Index benchmark.

Symbol Mutual Fund Name Turnover (%) Annualized 5 Yr Return (%)
RYWCX Rydex Small Cap Growth C 834 -8.75
RYGRX Rydex Large Cap Growth C 450 -10.59
AFUAX AFBA 5Star Cap Growth Adv 254 -7.27
AFGLX AFBA 5Star Large Cap Growth I 254 -7.05
VCGAX AIG Retirement I Growth & Income 238 -6.97
GSXAX Aberdeen Small Cap A 215 -4.42
Source: Yahoo! Finance

Indexed Funds

If you are investing in an indexed mutual fund, the passive nature of the security naturally means its turnover ratio should be very low. As their name implies, indexed funds are built to track given indexes, and require almost no hands-on management. Stocks are only added or removed when the underlying index posts a change. An indexed fund with a high turnover rate is not being properly managed. Anything over 20 to 30% should be viewed with skepticism or concern.

The Bottom Line

Another consideration for investors when evaluating mutual fund turnover is the type of investment accounts in which the funds are located. Non-retirement accounts are more likely to incur taxable events, and therefore funds with low turnover rates may be more appropriate. Retirement accounts with tax-deferred (401k) or tax-free status (Roth IRA) may be more appropriate for mutual funds with high turnover rates. In any case, investors should do their homework to determine the right mix for them.

There are many online sources for finding the turnover rates of a particular fund. Yahoo! Finance, Morningstar,, and many others provide mutual fund turnover data on almost all mutual funds. Some websites also list the average turnover rate for the category (type of fund).

The turnover rate of your mutual fund is really a measure of the frequency of transactions. In general, when determining whether to purchase a particular mutual fund, investors should analyze the turnover rate in conjunction with several other considerations. No particular fund turnover rate is perfect for your investment portfolio; instead, it should be used as a complimentary decision-making tool. Other indicators, such as expense ratios, load/no-load, management tenure, investment philosophy, and performance are (at least) as important as the turnover rate in helping you make the right investment decisions. (For more information on choosing the right mutual fund for your portfolio, read "Picking the Right Mutual Fund.")