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What is Bond Duration?

What is Bond Duration?

Sep 26, 2018 | Blog

What is Duration? It is important to understand that duration is a way of measuring how much bond prices are likely to change if and when interest rates move. In more technical terms, duration is measurement of interest rate risk. 

The key point to remember is that rates and prices move in opposite directions. 

When interest rates rise, the prices of bonds fall, and vice versa. The higher the bond’s duration, the more its price will fall as interest rates rise. If interest rates are expected to fall during the time the bond is held, a longer duration bond would be appealing because its price would increase more than comparable bonds with shorter durations. As a general rule (with equal credit quality) the shorter the bond’s duration, the less volatile it will be. 

For example, a bond with a one-year duration, would only lose 1% in value if rates were to rise by 1%. In contrast, a bond with a duration of 10 years would lose 10% if rates were to rise by 1%. Conversely, if rates fell by 1%, bonds with longer duration would gain more while those with shorter durations would gain less. 

Why is Measuring Duration Helpful?

Because every bond and bond fund has a duration, those numbers can be a useful tool that you and a financial professional can use to compare bonds and bond funds as you construct and adjust your investment portfolio. 

This is particularly important when interest rates are expected to rise or fall, as it may provide opportunities to invest or reasons to be concerned. 

Interest Rates Are Rising. What Does That Mean For Me?

As we indicated before, rising rates mean that long duration bonds are set up to take higher losses than short duration bonds. For your own portfolio, you should also examine what type of bonds in each of your funds. 

Duration is one piece of the puzzle, but credit quality also is a factor in bond performance. 

Lower quality bonds generally pay higher interest rates but are also more susceptible to default or can recognize higher volatility. As an investor, you can rely on active managers to manage duration and/or credit quality, or you may choose to use index funds to get exposure to bonds. Should you choose to utilize index funds you should perform a deep dive into the portfolio statistics of the bonds including a view of the duration, credit quality, and type of the bonds. 

Why Should I Care?

For most investors, bonds are a safe haven investment. Interest rates have been falling for a long time and only recently have been on the rise. Losing money in bonds is a foreign concept to many investors, which has caused many to take a closer look at what they own inside their funds. Ask yourself why you hold bonds and how you prefer to manage the risk in a rising rate environment. Work with a trusted professional to make sure you have the right amount of exposure for your financial situation.

-Clint Walkner

Walkner Condon Financial Advisors is a registered investment advisor with the SEC and the opinions expressed by Walkner Condon Financial Advisors and its advisors in this piece are their own. Registration with the SEC does not imply a certain level of skill or training. All statements and opinions expressed are based upon information considered reliable although it should not be relied upon as such. Any statements or opinions are subject to change without notice.

Information presented in this piece is for educational purposes only and does not intend to make an offer or solicitation for the sale or purchase of any specific securities, investments, or investment strategies. Investments involve risk and unless otherwise stated, are not guaranteed.

Information in this piece does not take into account your specific situation or objectives and is not intended as recommendations appropriate for any individual. Readers are encouraged to seek advice from a qualified tax, legal, or investment adviser to determine whether any information presented may be suitable for their specific situation. Past performance is not indicative of future performance.