Corporate Bond

Quick Definition

A corporate bond is a debt security issued by a corporation to raise capital from investors. The company borrows money by selling bonds, promising to pay periodic interest (coupon payments) and return the principal (face value) at maturity. Corporate bonds carry higher yields than equivalent-maturity government bonds to compensate investors for the additional risk of corporate default — a spread known as the credit spread.

What It Means

When a company needs to raise large amounts of capital — for expansion, acquisitions, refinancing existing debt, or working capital — it has two main choices: issue stock (equity) or issue bonds (debt). Bonds are often preferred when interest rates are manageable, because debt financing does not dilute existing shareholders and interest payments are tax-deductible.

The US corporate bond market is the largest in the world, with approximately $10 trillion in outstanding corporate bonds as of 2024. Large, well-known companies — Apple, Microsoft, Johnson & Johnson, ExxonMobil — are regular issuers. Corporate bonds are purchased by pension funds, insurance companies, mutual funds, and individual investors seeking income above what government bonds provide.

How Corporate Bonds Work

Core Mechanics

1. Issuance: Company files a prospectus with the SEC and works with investment banks (underwriters) to sell bonds to institutional investors
2. Coupon payments: Company pays interest (typically semi-annually) at the stated coupon rate
3. Maturity: At the bond's maturity date, the company repays the full face value ($1,000 per bond standard)
4. Secondary market: Bonds trade on OTC (over-the-counter) markets between investors after issuance

Bond Certificate Terms

Corporate Bond Categories by Credit Quality

The defining characteristic of corporate bonds is credit risk — the risk the issuer defaults. Credit rating agencies (Moody's, S&P, Fitch) assess this risk and assign ratings:

Investment grade bonds are purchased by virtually all institutional investors. High yield bonds (also called junk bonds) are restricted from many pension and insurance portfolios by mandate, but are actively sought by high-yield bond funds and credit hedge funds.

Credit Rating Scale

Corporate Bond Yields: The Credit Spread

Corporate bonds always yield more than equivalent-maturity US Treasuries — the difference is the credit spread:

Corporate Bond Yield = Treasury Yield + Credit Spread

Credit spreads widen during economic stress (as default fears rise) and compress during expansions (as confidence grows). The ICE BofA US Corporate Bond Index and Bloomberg US Corporate Bond Index track corporate bond market performance.

Types of Corporate Bonds

Priority in Bankruptcy: The Capital Stack

If a company enters bankruptcy, corporate bondholders are paid before equity holders but after secured lenders:

Secured debt (mortgages, equipment loans) — paid first
Senior unsecured bonds — paid next
Subordinated bonds — paid after senior
Preferred stockholders — paid after bonds
Common stockholders — paid last (often nothing)

This hierarchy is why bonds are considered safer than stocks — bondholders have a legal claim on assets. However, recovery rates in bankruptcy average only 40-50 cents on the dollar for senior unsecured bonds, and far less for subordinated debt.

Real-World Example: Apple's Bond Issuance

Apple (AAPL) regularly issues corporate bonds despite holding $150+ billion in cash — because issuing bonds at low interest rates is cheaper than repatriating overseas cash and paying taxes.

Apple 10-year bond (hypothetical 2024 issuance):

• Face value: $1,000
• Coupon: 4.90% (vs. 4.3% Treasury + 0.60% credit spread)
• Maturity: 10 years
• Rating: AAA (Moody's), AA+ (S&P)
• Annual interest per bond: $49
• Total return at maturity (no price change): $490 in interest + $1,000 principal

Why buy an Apple bond vs. an Apple stock?

• Bond provides predictable income and return of principal
• Bond has priority over stock in bankruptcy
• Bond will underperform if Apple stock triples
• Bond will outperform if Apple stock collapses or pays no dividend

Investing in Corporate Bonds

Direct Purchase vs. Funds

Popular corporate bond ETFs:

• LQD (iShares iBoxx Investment Grade): Tracks investment grade corporate bonds
• HYG (iShares High Yield): Tracks high-yield corporate bonds
• VCIT (Vanguard Intermediate Corporate): Low-cost investment grade exposure

Historical Default Rates by Rating

Source: Based on Moody's historical data

Key Points to Remember

• Corporate bonds are loans to companies that pay interest (coupon) and return principal at maturity
• The credit spread above Treasury yields compensates for the risk of corporate default
• Investment grade (BBB-/Baa3 and above) bonds have low default risk; high yield bonds have higher risk and higher yield
• Bondholders have priority over stockholders in bankruptcy but often still recover less than full value
• Credit spreads widen in recessions (fear increases) and compress in expansions (confidence returns)
• For most investors, corporate bond ETFs offer the best combination of diversification and low cost

Common Mistakes to Avoid

• Reaching for yield: Buying high-yield bonds without understanding the credit risk can lead to significant losses if issuers default
• Ignoring duration risk: Long-maturity corporate bonds lose significant value when interest rates rise — a 10-year bond loses roughly 8-9% for every 1% rate increase
• Holding bonds to avoid volatility: Bonds fluctuate in price — you only receive face value at maturity
• Concentrating in single issuers: Corporate bond defaults (Lehman, Enron, WorldCom) can devastate concentrated positions

Frequently Asked Questions

Q: Are corporate bonds safe? A: Investment grade corporate bonds (rated BBB-/Baa3 or higher) have historically low default rates and are generally considered relatively safe — far safer than stocks in terms of capital loss potential. High-yield bonds carry significantly more risk. All corporate bonds carry interest rate risk (price falls when rates rise) regardless of credit quality.

Q: What is the difference between a corporate bond and a Treasury bond? A: Treasury bonds are issued by the US government and carry effectively zero default risk (backed by the full faith and credit of the United States). Corporate bonds are issued by companies and carry credit risk — the possibility the company cannot pay. Corporate bonds therefore yield more than Treasuries to compensate investors for this additional risk.

Q: How do I buy corporate bonds? A: Most retail investors are best served by corporate bond ETFs (like LQD for investment grade or HYG for high yield) through a standard brokerage account. If you want individual bonds, brokerage platforms like Fidelity, Schwab, and TD Ameritrade offer bond desks with access to new issues and secondary market trading, though minimum purchases and bid-ask spreads make individual bond investing more efficient at larger portfolio sizes.