Bond funds — mutual funds and ETFs composed mostly of bonds and other debt instruments — are subject to the same inflation, interest rate, and credit risks associated with their underlying bonds. Thus, falling bond prices due to rising rates can adversely affect a bond fund’s performance. Because longer-term bonds are generally more sensitive to rising rates, funds that hold short- or medium-term bonds may be more stable as rates increase.

Bond funds do not have set maturity dates (with the exception of the target maturity ETFs discussed above), because they typically hold bonds with varying maturities, and they can buy and sell bonds before they mature. So you might consider the fund’s duration, which takes into account the durations of the underlying bonds. The longer the duration, the more sensitive a fund is to changes in interest rates. You can usually find duration with other information about a bond fund. Although helpful as a general guideline, duration is best used when comparing funds with similar types of underlying bonds.

A fund’s sensitivity to interest rates is only one aspect of its value — fund performance can be driven by a variety of dynamics in the market and the broader economy. Moreover, as underlying bonds mature and are replaced by higher-yielding bonds in a rising interest rate environment, the fund’s yield and/or share value could potentially increase over the long term. Even in the short term, interest paid by the fund could help moderate any losses in share value.

It’s also important to remember that fund managers might respond differently if falling bond prices adversely affect a fund’s performance. Some might try to preserve the fund’s asset value at the expense of its yield by reducing interest payments. Others might emphasize preserving a fund’s yield at the expense of its asset value by investing in bonds of longer duration or lower credit quality that pay higher interest but carry greater risk. Information on a fund’s management, objectives, and flexibility in meeting those objectives is spelled out in the prospectus and also may be available with other fund information online.

The return and principal value of individual bonds, UIT units, and mutual fund and ETF shares fluctuate with changes in market conditions. Fund shares and UIT units, when sold, and bonds redeemed prior to maturity may be worth more or less than their original cost. ETFs typically have lower expense ratios than mutual funds, but you may pay a brokerage commission whenever you buy or sell ETFs, so your overall costs could be higher, especially if you trade frequently. Supply and demand for ETF shares may cause them to trade at a premium or a discount relative to the value of the underlying shares. UITs may carry additional risks, including the potential for a downturn in the financial condition of the issuers of the underlying securities. There may be tax consequences associated with the termination of the UIT and rolling over an investment into a successive UIT. There is no assurance that working with a financial professional will improve investment results.