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What a bond ETF is
A bond is essentially a loan to a government or company that pays interest over time. A bond ETF is an exchange-traded fund that holds hundreds or thousands of these bonds in one basket and trades on a stock exchange, so you can buy bond exposure as easily as buying a share.
The fund collects the interest from all those bonds and passes it to you as regular distributions. Instead of researching and buying individual bonds, you get a diversified slice of the bond market in a single product.
How it differs from owning one bond
A single bond has a maturity date, when you get your original loan back. A bond ETF does not work that way. It continuously holds a rolling mix of bonds, buying new ones as old ones mature, so it has no single maturity date and its price moves up and down with the bond market.
This makes a bond ETF more convenient and easier to trade than individual bonds, but it also means the value of your holding fluctuates rather than returning a fixed amount on a set date.
💡 No maturity date, so the price moves:Because a bond ETF never matures, you cannot simply hold it to get a fixed sum back. Its price rises and falls with interest rates, which is the key difference from holding one bond to maturity.
The main types of bond ETF
Bond ETFs are grouped by what they hold. Government bond ETFs hold debt issued by a government and are generally seen as lower risk. Corporate bond ETFs hold company debt and pay more interest in exchange for more risk. Aggregate bond ETFs hold a broad mix of both.
They also differ by duration, a measure of how sensitive the fund is to interest rates. Short-duration funds move less when rates change, while long-duration funds move more.
- Government bond ETFs: lower risk, lower yield
- Corporate bond ETFs: higher yield, more credit risk
- Aggregate ETFs: a broad mix of the whole bond market
- Short vs long duration: how much the price reacts to rate changes
Why investors use them
Bonds usually move differently from stocks, so adding a bond ETF can steady a portfolio and provide income. In many market downturns, high-quality government bonds have held up better than stocks, which is why they are often used as ballast.
They also make a famously complicated asset class simple. Buying one diversified fund is far easier than building a ladder of individual bonds, especially for a beginner.
What to keep in mind
Bond ETFs are not risk-free. When interest rates rise, the price of existing bonds falls, so bond ETFs can lose value, and longer-duration funds fall more. Corporate and lower-quality bond funds also carry credit risk, the chance that a borrower fails to pay.
Understanding a fund's duration and credit quality tells you most of what you need to know about how it will behave. Our guides on bonds and interest rates go deeper on why prices move.
Frequently asked questions
What is the difference between a bond and a bond ETF?
A single bond has a maturity date when you get your principal back. A bond ETF holds a rolling basket of many bonds with no single maturity date, so its price fluctuates with the market. The ETF is more diversified and easier to trade, but it does not return a fixed sum on a set date.
Can you lose money in a bond ETF?
Yes. When interest rates rise, the prices of the bonds inside the fund fall, so the ETF can lose value, and longer-duration funds fall more. Funds holding lower-quality corporate bonds also carry the risk that a borrower defaults.
Why hold a bond ETF instead of stocks?
Bonds usually behave differently from stocks and tend to be less volatile, so a bond ETF can steady a portfolio and provide income. Many investors hold both, using bonds as ballast against stock market swings. This is not advice.
What does duration mean for a bond ETF?
Duration measures how sensitive a bond fund is to interest-rate changes. A higher duration means the price moves more when rates change. Short-duration funds are steadier, while long-duration funds swing more in both directions.
Related tools and pages
These are for learning. Any calculator here shows example scenarios, not predictions of future prices.
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