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Yield Spread

A yield spread is the difference between the yields of two debt securities, often expressed in basis points, used to compare relative value, credit risk, or the shape of the yield curve.

What Is a Yield Spread?

A yield spread is the gap between the bond yield of one debt security and the yield of another. Analysts usually calculate it by subtracting the lower yield from the higher one and state the result in basis points, where one basis point equals one-hundredth of a percentage point. Yield spreads make it easier to compare debt instruments that pay different rates, because the spread isolates the difference between them rather than the overall level of interest rates.

How It Works

Yield spreads appear in several common forms:

  • Credit spread: the difference between a corporate bond's yield and the yield of a government bond with a similar maturity. A wider spread generally signals that investors want more compensation for credit risk.
  • Term spread: the difference between yields on longer-term and shorter-term bonds of the same issuer, such as the gap between a 10-year and a 2-year Treasury security. Changes in this spread are closely watched as part of the yield curve.
  • Quality or sector spread: the difference between bonds of different credit ratings or industries.

Spreads move as market conditions change. When investors grow worried about defaults, credit spreads often widen. When confidence improves, they often narrow.

Example

Suppose a hypothetical corporate bond yields 5.0 percent and a government bond with the same maturity yields 4.0 percent. The yield spread is 1.0 percentage point, or 100 basis points. The extra yield compensates investors for risks such as the chance that the corporate issuer cannot make its payments, along with factors like how easily the bond can be sold. These figures are illustrative only, since actual yields change constantly.

Why It Matters to Investors

Yield spreads help investors judge whether they are being paid enough for the risks they take. A very narrow spread may suggest that risky bonds are priced close to safe ones, which could leave less cushion if conditions worsen. A widening spread can signal rising caution in the market. Because spreads are relative measures, they are less affected by broad rate moves than raw yields are, but they reflect many factors at once. Spread analysis helps explain how the market is pricing risk. It does not predict future returns.

Updated October 15, 2026. For general education only; not financial, tax or legal advice.

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Related Terms

Bond Yield

A bond yield is the annual return an investor earns from holding a bond, expressed as a percentage of its price, reflecting coupon income and any gain or loss relative to the amount paid.

Basis Point (BPS)

A basis point (BPS) is one hundredth of one percentage point, or 0.01%, used to express small changes in interest rates, yields, and fees.

Credit Risk

Credit risk is the possibility that a borrower or counterparty will fail to repay a loan or meet its contractual obligations, causing a financial loss to the lender or investor.

Yield Curve

A yield curve is a graph that plots the interest rates, or yields, of bonds with the same credit quality but different maturities, showing how borrowing costs change with time.

Credit Spread

A credit spread is an options strategy that involves selling one option and buying a cheaper one on the same underlying, receiving a net credit upfront; the term also describes bond yield gaps.

Inverted Yield Curve

An inverted yield curve occurs when short-term interest rates on bonds are higher than long-term rates, reversing the usual pattern in which investors earn more for lending over longer periods.