A corporate bond is a debt security issued by a company to obtain financing from investors. The issuer receives money from investors and, under the bond's legal terms, promises to make specified payments, normally periodic interest and repayment of principal at maturity. The investor becomes a creditor of the company rather than an ordinary shareholder.
Corporate bonds are a major component of capital markets because they allow companies to obtain large amounts of funding from many investors instead of relying solely on bilateral bank lending. Bonds can be issued by companies in different industries, sizes and jurisdictions and can vary greatly in risk, maturity, interest rate, security and ranking. A conventional corporate bond might have a face value of £100, a fixed annual coupon of 5% and a maturity of ten years.
An investor holding £20,000 nominal value would ordinarily receive £1,000 of annual coupon payments and, assuming the issuer fulfils its obligations and no other contractual event intervenes, receive £20,000 principal at maturity. The actual return to the investor depends on the price paid, subsequent market price, coupons and the final repayment amount.
Corporate bonds provide a mechanism for transferring capital from investors to companies. An issuer may use the proceeds for capital expenditure, acquisitions, refinancing, expansion, general corporate purposes or other activities permitted by the offering documentation. The bond may be arranged and distributed by investment banks or other intermediaries, with investors purchasing the securities at issuance. After issuance, many corporate bonds can trade in secondary markets, allowing investors to sell before maturity.
This tradability differentiates many bonds from ordinary private loans, although actual liquidity varies substantially. A bond's original issue price can be at par, above par or below par depending on market conditions and the terms offered. The company receives proceeds based on the issue price rather than simply the face value in every case. Issuance involves legal documentation, underwriting or distribution arrangements, disclosure requirements and potentially listing and regulatory obligations. For the issuer, the bond creates a financing liability; for the investor, it creates a contractual claim whose value depends on interest rates, credit quality, liquidity and the bond's specific terms.
Several technical terms are essential to understanding corporate bonds. Face value or principal is the amount normally due at maturity. The coupon rate specifies the contractual interest payment relative to the relevant principal amount. The maturity date is the date on which principal is scheduled to be repaid. The issue price is the amount investors pay when the bond is initially sold, while the market price is the amount at which the bond subsequently trades.
A bond trading at £95 with a £100 face value is trading below par, while a bond trading at £105 is trading above par. Yield reflects the return implied by the bond's price and cash flows under a specified calculation. A fixed-rate bond can therefore have a 5% coupon but a market yield above or below 5% because its trading price changes. Yield to maturity incorporates the bond's price, coupon payments, remaining maturity and redemption amount under stated assumptions. Coupon and yield are consequently related but distinct concepts. Understanding this distinction is essential when comparing bonds in changing interest-rate environments.
Corporate bonds have different structural forms that affect risk and return. Secured bonds are supported by specified collateral, while unsecured bonds generally depend on the issuer's general creditworthiness and ranking. Senior debt ranks ahead of subordinated debt according to the relevant legal terms. Subordinated bonds may offer higher yields because their claims rank behind specified senior obligations. Fixed-rate bonds provide predetermined coupon payments, while floating-rate bonds have payments linked to a reference rate plus or minus a contractual spread.
Zero-coupon bonds do not make conventional periodic coupon payments and are typically issued below their redemption value, with the investor's return arising from the difference between acquisition cost and eventual repayment. Convertible bonds contain features that can allow conversion into shares under defined circumstances, combining debt characteristics with potential equity participation. Callable bonds allow the issuer to redeem the debt before maturity according to specified terms, which can enable refinancing when borrowing costs fall but can reduce the investor's expected future interest income.
Corporate bonds trade at changing market prices because investors continuously reassess interest rates, credit quality, liquidity and expected returns. The price of a conventional fixed-rate bond generally moves inversely to market yields. If market interest rates rise significantly, an existing bond paying a fixed coupon becomes less attractive relative to newly issued bonds, so its market price generally falls until its yield becomes competitive.
If market yields fall, an existing higher-coupon bond can become more valuable and its price can rise. The sensitivity of bond prices to yield movements is commonly measured through duration and convexity. Longer-duration bonds generally experience larger price changes for a given movement in yields than shorter-duration bonds, all else equal. Credit spreads provide another major price influence.
If investors become more concerned about an issuer's ability to repay, they may demand a higher yield, causing the bond's price to fall. A bond investor can therefore experience a capital loss by selling before maturity even when the issuer ultimately pays every contractual amount.
Investors face several forms of risk when buying corporate bonds. Default risk is the possibility that the issuer fails to make scheduled payments. Credit-spread risk concerns changes in the additional yield demanded for the issuer's credit quality, which can cause market prices to change even without an actual default. Interest-rate risk affects fixed-rate bonds when general market yields move. Liquidity risk arises if the bond is difficult to sell quickly at a reasonable price.
Reinvestment risk occurs when coupon income must be reinvested at lower rates than anticipated. Inflation reduces the real purchasing power of fixed cash flows. Currency risk affects investors when the bond is denominated in a currency different from their own economic base. Recovery risk becomes relevant in default because creditors may recover only part of principal depending on collateral, seniority and the value of the issuer's assets. A high coupon does not eliminate these risks; in many cases, a higher yield exists precisely because investors require compensation for higher credit, liquidity or structural risk.
From the company's perspective, bonds can provide long-term funding and diversify financing sources. A company with sufficient credit quality may access institutional investors directly through the bond market rather than relying entirely on bank lending. Bond financing can provide long maturities and predictable interest costs, particularly when fixed-rate debt is used. However, issuance involves transaction and compliance costs, and the company becomes responsible for contractual interest and principal payments.
Large bullet maturities can create refinancing risk if substantial principal becomes due at once. Companies therefore often manage debt maturity ladders to spread refinancing requirements across different years. Bond covenants can also restrict certain corporate actions or require financial conditions to be maintained. During periods of strong capital-market access, a company may issue bonds at attractive rates, whereas during financial stress investors can demand substantially higher yields or withdraw from the market. The cost and availability of corporate bond financing are consequently linked closely to credit quality and broader market conditions.
Corporate bonds differ from both shares and conventional bank loans. A share represents an ownership interest and generally participates in residual economic value, whereas a bond represents a creditor claim with contractual terms. An ordinary shareholder may benefit from rising profits without a predetermined maximum return, while a conventional bondholder generally receives defined contractual payments and does not ordinarily participate directly in residual profits.
A bond can resemble a loan economically but is generally structured as a security that can be held and, in many cases, traded by multiple investors. Government bonds differ because their issuer is a sovereign government rather than a corporation, creating a different set of credit, legal and fiscal considerations. Commercial paper is another corporate debt security but normally has a much shorter maturity and serves primarily short-term financing needs. Understanding these distinctions prevents the common mistake of treating all fixed-income instruments as interchangeable.
