Glossary term
Fixed Income
Fixed income refers to investments, often bonds, that are designed to provide scheduled interest or income payments and return of principal under stated terms.
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What Is Fixed Income?
Fixed income refers to investments that are designed to provide scheduled income payments, often through interest, and return principal under stated terms. Bonds are the most common fixed income securities, but the category can also include bond funds, Treasury bills, notes, certificates of deposit, preferred securities, and other income-oriented instruments.
The phrase fixed income can be misleading because the price of a fixed income investment can move. The income schedule may be fixed or defined, but the market value can change with interest rates, credit risk, inflation, liquidity, and time to maturity.
Key Takeaways
- Fixed income usually refers to bonds and related income-producing investments.
- Many fixed income securities pay scheduled interest and return principal at maturity.
- Prices can rise or fall before maturity.
- Major risks include interest-rate risk, credit risk, inflation risk, call risk, and liquidity risk.
- Fixed income can provide income, diversification, and capital preservation, depending on the instrument.
How Fixed Income Works
When an investor buys a bond, the investor is generally lending money to an issuer such as a government, municipality, corporation, or agency. In return, the issuer promises to make interest payments and repay principal according to the bond's terms.
Bond prices and yields move in opposite directions. If market interest rates rise, existing fixed-rate bonds often fall in price because their coupons are less attractive. If rates fall, existing bonds with higher coupons may become more valuable.
Fixed income can be held directly or through mutual funds and ETFs. Funds can provide diversification and professional management, but they do not necessarily mature like an individual bond and their share prices can fluctuate.
Common Fixed Income Types
Type | Issuer or structure | Main risk to understand |
|---|---|---|
Treasury securities | U.S. government | Interest-rate and inflation risk |
Municipal bonds | State or local governments | Credit, tax, and liquidity risk |
Corporate bonds | Companies | Credit and downgrade risk |
Bond funds | Pooled portfolio | Price volatility and fund expenses |
Mortgage-backed securities | Mortgage pools | Prepayment and extension risk |
Limits and Misunderstandings
Fixed income is not risk-free. Even high-quality bonds can lose market value if rates rise. Lower-quality bonds may offer higher yields because investors demand compensation for default risk.
Yield also needs context. A high yield may reflect credit stress, call risk, long maturity, illiquidity, or complex structure. Comparing yield without understanding risk can lead to poor decisions.
Fixed income can play different roles in a portfolio: income generation, volatility reduction, liability matching, liquidity management, or capital preservation. The right mix depends on goals, taxes, risk tolerance, and time horizon.
The Bottom Line
Fixed income investments can provide scheduled income and portfolio stability, but they still carry risk. Understanding issuer quality, maturity, yield, interest-rate sensitivity, and liquidity is essential before relying on fixed income for safety or income.