Bond Premium vs. Bond Discount: What's the Difference?
Two bonds from equally solid issuers can trade at noticeably different prices relative to their face value, and the reason usually has less to do with the issuer and more to do with timing.
The short answer
A bond trades at a premium when its market price is above its face value, and at a discount when its price is below face value. This typically happens because interest rates have moved since the bond was issued, changing how attractive its fixed coupon payments look compared to newer bonds.
The mechanism behind it
A bond’s coupon rate is fixed at issuance and doesn’t change. But interest rates in the broader market keep moving. If rates fall after a bond is issued, that bond’s fixed coupon payments look more attractive than what newer bonds are offering, so investors are willing to pay more than face value to own it — pushing it to a premium. If rates rise after issuance, the bond’s fixed coupon looks less attractive next to newer, higher-paying bonds, so its price falls below face value to compensate — a discount. This is the same underlying logic covered in why bond prices fall when interest rates rise.
How premium and discount affect return
Price and yield move in opposite directions for a fixed coupon. A bond bought at a premium has a yield lower than its coupon rate, because the investor paid more than face value for the same fixed payments. A bond bought at a discount has a yield higher than its coupon rate, because the investor paid less than face value for those same payments. This relationship is explored more directly in coupon rate versus yield, which walks through why the two figures diverge whenever price departs from face value.
What happens by maturity
Regardless of whether a bond was purchased at a premium or a discount, it typically returns to its face value, or par value, by the time it matures, assuming the issuer meets its obligations. A bond bought at a premium will see its price gradually decline toward par as maturity approaches; a bond bought at a discount will see its price gradually rise toward par. This gradual pull toward par value is a normal, expected part of how bonds behave over their lifespan, separate from any day-to-day market volatility.
Other factors that can create premiums or discounts
- Changes in the issuer’s credit standing. A downgrade in perceived creditworthiness can push a bond’s price down to a discount, independent of interest rate moves, reflecting a wider gap in perceived risk relative to safer borrowers.
- Time remaining until maturity. A bond closer to maturity generally has a smaller premium or discount than one with many years left, since there’s less time for the gap to unwind.
- General demand and liquidity. Bonds that are harder to buy or sell can trade at a discount simply to compensate investors for that inconvenience.
What to weigh
Premium and discount pricing isn’t a sign that something is wrong with a bond — it’s a normal reflection of how fixed payments compare to current market conditions. Investors evaluating a bond need to look past the sticker price alone and consider yield, time to maturity, and the reason behind the premium or discount before drawing conclusions about whether a given price represents good value.