Corporate Bond
A corporate bond is a debt security issued by a corporation to raise capital, offering investors regular coupon payments and the return of principal at maturity in exchange for lending money to the company.
Corporate bonds are the primary tool through which large U.S. companies access the debt capital markets. Rather than taking a bank loan for a large capital need — building a factory, funding an acquisition, or refinancing existing debt — companies issue bonds directly to investors. The U.S. investment-grade corporate bond market exceeds $10 trillion and includes issuers from virtually every sector of the economy, from Apple and ExxonMobil to hospitals and utilities.
Corporate bonds are riskier than U.S. Treasury bonds because they carry credit risk — the possibility that the issuer may default on its interest or principal payments. To compensate investors for this risk, corporate bonds offer a credit spread above comparable Treasury yields. A 10-year investment-grade corporate bond might yield 100–200 basis points more than the 10-year Treasury, while a high-yield corporate bond might carry a spread of 300–600 basis points or more, depending on the issuer's credit quality and market conditions.
The bond indenture is the legal contract between the issuer and bondholders, administered by a trustee (typically a large bank like U.S. Bank or Deutsche Bank). The indenture specifies the coupon rate, maturity date, call provisions, and covenants — protective restrictions placed on the issuer, such as limits on additional debt issuance, requirements to maintain certain financial ratios, or restrictions on dividend payments. Covenants protect bondholders by constraining management's ability to take actions that could impair the company's creditworthiness.
Corporate bonds are typically issued in the primary market through an underwriting process led by investment banks such as JPMorgan, Goldman Sachs, or Bank of America. After issuance, bonds trade in the over-the-counter (OTC) secondary market, where broker-dealers make markets by quoting bid and ask prices. Liquidity varies considerably: bonds from blue-chip issuers like Microsoft trade actively, while smaller or more obscure issues may have wide bid-ask spreads and infrequent trading.
For tax purposes, interest income from corporate bonds is taxable at the federal, state, and local level — unlike Treasury bonds (exempt from state and local tax) or municipal bonds (often exempt from federal tax). This full taxability makes the pre-tax yield comparison more straightforward for corporate bonds but also means after-tax returns are lower for investors in high tax brackets relative to equivalent-yielding munis. Understanding the tax treatment is essential to building an optimal fixed income allocation.