Corporate Bond

Quick Definition

When you buy a corporate bond, you are lending money to a company. A corporate bond is a debt security issued by a corporation to raise capital from investors. The company promises 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 risk of corporate default. That yield difference is called 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 $11 trillion in outstanding corporate bonds as of 2026. Large companies like Apple, Microsoft, Johnson & Johnson, and 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.

As of July 2026, investment grade corporate bonds yield approximately 5.43%, with a credit spread of 0.79 percentage points over the 10-year Treasury yield of 4.69%. High yield (junk) corporate bonds yield approximately 7.19%, with a spread of 2.77 percentage points. Spreads remain historically tight, sitting in the 13th percentile over a 20-year lookback, though they widened modestly in the first quarter of 2026 from their January tightest level in two decades.

How It Works

Core Mechanics

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

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

Yields as of July 23, 2026. IG index yield: 5.43%, HY index yield: 7.19%. Source: StreetStats, FRED (BAA10Y), ICE BofA indices.

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. In the first quarter of 2026, investment grade option-adjusted spreads widened by 11 basis points to +89 bps, driven by geopolitical tensions, record IG bond issuance ($721 billion in 1Q26, up 12% year-over-year), and AI-related capex driving heavy technology sector borrowing.

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 to 50 cents on the dollar for senior unsecured bonds, and far less for subordinated debt.

Real-World Examples

Example 1: Apple's Bond Strategy

Apple (AAPL) regularly issues corporate bonds despite holding over $150 billion in cash. Issuing bonds at favorable rates is cheaper than repatriating overseas cash and paying taxes. Apple's bonds are rated Aa1 (Moody's) and AA+ (S&P), placing them among the highest-quality corporate issuers.

A hypothetical Apple 10-year bond issued in 2026 at current spreads:

• Face value: $1,000
• Coupon: approximately 5.49% (4.69% Treasury + ~0.80% credit spread)
• Annual interest per bond: ~$55
• Total return at maturity (no price change): ~$549 in interest + $1,000 principal

Why buy an Apple bond instead of Apple stock? The bond provides predictable income and return of principal. The bond has priority over stock in bankruptcy. The bond will underperform if Apple stock triples. The bond will outperform if Apple stock collapses or pays no dividend.

Example 2: The 2026 IG Issuance Wave

In the first quarter of 2026, gross investment grade bond supply reached $721 billion, up 12% year-over-year. This was driven by high refinancing needs, rising capex related to AI investments, and debt-funded M&A activity. Technology was the third largest borrowing sector, issuing $64 billion in new bonds. Hyperscalers brought large multi-tranche deals priced to move given the size of the borrowings. This heavy supply contributed to the 11 basis point spread widening seen in 1Q26.

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: Moody's historical default 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)
• As of July 2026, IG corporate yields are ~5.43% and HY yields are ~7.19%, with spreads historically tight but widening modestly
• For most investors, corporate bond ETFs offer the best combination of diversification and low cost

Related Concepts

• Bond: The foundational debt instrument; corporate bonds are one category
• Sovereign Bond: Government-issued debt; the risk-free benchmark for corporate spreads
• Municipal Bond: Debt issued by state and local governments, often tax-exempt
• Yield Curve: Plots Treasury yields across maturities; corporate bonds price off this curve
• Stock: Equity ownership; bonds sit above stock in the bankruptcy capital stack
• ETF: The most common vehicle for individual investors to access corporate bonds
• Interest Rate: Determines the Treasury baseline that corporate yields are priced against

Common Mistakes to Avoid

• Reaching for yield: Buying high-yield bonds without understanding the credit risk can lead to significant losses if issuers default. A BB-rated bond yielding 7.46% looks attractive until the issuer misses a payment.
• Ignoring duration risk: Long-maturity corporate bonds lose significant value when interest rates rise. A 10-year bond loses roughly 8 to 9% for every 1% rate increase. With the 10-year Treasury at 4.69% in July 2026, further rate increases would hit long-duration bonds hard.
• Assuming bonds are risk-free: Bonds fluctuate in price. You only receive face value at maturity. If you need to sell before maturity, you may get less than you paid.
• Concentrating in single issuers: Corporate bond defaults (Lehman, Enron, WorldCom) can devastate concentrated positions. Diversification across issuers and sectors reduces idiosyncratic risk.
• Ignoring spread tightness: With IG spreads in the 13th percentile of their 20-year range as of mid-2026, the risk/reward of further spread compression is asymmetric. Most of the return is carry, not spread tightening.

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. See this FRED series for the live Baa-Treasury spread.

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 and Schwab 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.