Reading a bond comes down to six pieces of information: the issuer and its CUSIP, the par value, the coupon rate, the maturity date, the price and yield, and the credit rating. Find those on your trade confirmation, brokerage statement, or prospectus and you know who owes you money, how much, when they’ll pay, and how likely they are to follow through. Everything else on the page is detail hanging off those six anchors.
Who Owes You: Issuer and CUSIP
Start with the issuer’s name. This is the corporation, municipality, or government agency legally on the hook for the debt. A U.S. Treasury bond and a corporate bond from the same industry can look similar on a screen, but the party standing behind the promise is completely different, and so is the risk.
Then find the CUSIP. It’s a nine-character code of letters and numbers that identifies the exact bond issue.1U.S. Securities and Exchange Commission. CUSIP Number A single company can have dozens of bonds outstanding, each with its own coupon, maturity, and terms. The CUSIP acts as a fingerprint so nothing gets mixed up when you buy, sell, or settle. You’ll typically see it at the top of a trade confirmation or in the bond detail view on your brokerage account.
Par Value, Coupon, and Maturity
Three numbers form the backbone of every bond and tell you exactly how much cash it should generate and when.
Par value, also called face value, is the principal amount the issuer promises to repay at the end. For most corporate and municipal bonds, par value is $1,000 per bond.2FINRA. Bonds
Coupon rate is the annual interest the issuer pays you, expressed as a percentage of par. A 4.5% coupon on a $1,000 bond pays $45 a year. Most bonds split that into two semiannual payments, so you’d receive $22.50 every six months.3Municipal Securities Rulemaking Board. Interest Payments
Maturity date is the specific calendar date the issuer must return your principal. It could be months away or decades out.
These three appear prominently on the front page of a bond certificate, in the summary section of a prospectus, and on your brokerage’s bond detail page. If the coupon on your confirmation doesn’t match the schedule in the offering document, something is wrong. Check before you accept.
Reading the Price
Bonds rarely trade at exactly par in the secondary market. Prices shift as interest rates, credit conditions, and demand change. The convention that trips up new investors is that bond prices are quoted as a percentage of par, not in dollars.
A quote of 98 means 98% of $1,000, or $980. A quote of 102 means $1,020.4U.S. Securities and Exchange Commission. What Are Corporate Bonds Above par is a premium bond. Below par is a discount bond. Exactly 100 is par.
Clean Price Versus Dirty Price
The price shown on trading screens is the “clean” price, which excludes interest that has built up since the last coupon payment. When you actually buy a bond between coupon dates, you pay the “dirty” price: clean price plus accrued interest. That accrued interest compensates the seller for the portion of the next coupon they earned before selling. Your trade confirmation should break out the clean price, the accrued interest, and the total settlement amount separately.
Bid, Ask, and Spread
Live quotes show two prices. The bid is what a buyer will pay; the ask is what a seller demands. The gap between them is the bid-ask spread, and it tells you how actively the bond trades. A narrow spread suggests strong liquidity. A wide spread means selling in a hurry could cost you. Your broker may also add a markup when selling to you or a markdown when buying from you. FINRA requires those to be disclosed on confirmations for corporate and agency bonds sold to retail customers.5FINRA. Regulatory Notice 17-08
Reading the Yield
Price tells you what a bond costs. Yield tells you what return to expect. Several yield figures show up on bond documents, and each answers a different question.
Coupon Rate Versus Current Yield
The coupon rate is fixed at issuance and never changes. Current yield adjusts for what you actually paid: it’s the annual coupon divided by the current price. A bond with a $45 annual coupon trading at $980 has a current yield of about 4.59%. Useful as a snapshot, but it ignores what happens at maturity.
Yield to Maturity
Yield to maturity, or YTM, is the standard comprehensive figure. It calculates your total expected annual return if you hold the bond until it matures, factoring in coupon payments, the difference between your purchase price and par value, and the time remaining.4U.S. Securities and Exchange Commission. What Are Corporate Bonds A bond bought at a discount has a YTM higher than its coupon rate because you’ll eventually collect more than you paid. A premium bond works the other way.
Yield to Call and Yield to Worst
If the bond can be called (see below), you’ll see a yield to call figure. It calculates your return assuming the issuer redeems the bond on the earliest call date rather than at maturity. Yield to worst is the lowest of all possible yield calculations, whether that’s yield to maturity, yield to first call, or yield to any other call date. When a confirmation is priced based on yield rather than dollar price, it must show which yield is being used and the corresponding dollar price.6eCFR. 17 CFR 240.10b-10 – Confirmation of Transactions
Credit Rating
A bond’s credit rating is a letter-grade assessment of how likely the issuer is to pay on time. The three major agencies are Moody’s, S&P Global Ratings, and Fitch. Ratings appear in the bond’s descriptive data on brokerage platforms and in the offering documents.
The scales differ slightly between agencies but follow the same tiers:
- Highest quality: Aaa (Moody’s) or AAA (S&P and Fitch).
- Investment grade: Aaa/AAA down through Baa3/BBB-. Relatively low default risk.
- High yield, sometimes called junk: Ba1/BB+ and below. Higher coupons compensate for higher default risk.
Ratings change over the life of a bond. An upgrade tends to push the price up; a downgrade pushes it down. When you’re reviewing holdings, check the current rating, not the rating at issuance.
Call and Put Provisions
Many bonds include clauses that can end the debt before the stated maturity. These appear in the “Description of the Notes” section of a prospectus and are usually summarized on the brokerage bond detail page.
Call Provisions
A call provision gives the issuer the right to buy the bond back at a set call price on or after specific call dates. Issuers use it when interest rates have fallen, so they can retire expensive debt and reissue at a lower rate. For you, an unexpected call means your income stops early and you may have to reinvest at a lower yield. Bond summaries usually list call dates and call prices in a separate table.
Some corporate bonds carry a make-whole call instead of, or alongside, a traditional call. Under a make-whole call, the issuer pays a price based on current market conditions, typically the present value of the remaining payments discounted at a Treasury rate plus a small premium. That price is almost always above par, so make-whole calls are rarely exercised just to save on interest and are more common with acquisitions or restructuring. Bonds with only a make-whole call generally behave like noncallable bonds.
Put Provisions
A put provision is the reverse: it gives you the right to demand early repayment at a specified price on specified dates. Puts protect you if rates rise sharply, since you can force repayment and reinvest at higher rates. Bonds with put features are less common than callable bonds, but when they exist, the put dates and prices sit alongside the call schedule in the documentation.
Duration and Interest Rate Sensitivity
Bond prices and market interest rates move in opposite directions. When rates rise, prices of existing fixed-rate bonds fall. When rates drop, prices rise.7U.S. Securities and Exchange Commission. Interest Rate Risk – When Interest Rates Go Up, Prices of Fixed-Rate Bonds Fall This is the single most important dynamic to understand when holding bonds.
The logic is straightforward. If new bonds are being issued at 5% and yours pays 3%, yours is less attractive. Its price drops until its effective yield lines up with the newer bonds. When new bonds offer lower rates, your higher-coupon bond becomes more valuable.
Duration, expressed in years, estimates how sensitive a bond’s price is to interest rate changes. As a general rule, for every 1% move in rates, a bond’s price moves about 1% in the opposite direction for each year of duration. A bond with a duration of 7 years would lose roughly 7% of its value if rates rose one percentage point, and gain about 7% if rates fell by the same amount. Longer maturities and lower coupons produce higher durations and bigger price swings. Duration appears on most brokerage bond detail pages and on fund fact sheets.
Tax Treatment by Issuer Type
Bond interest is included in gross income under federal tax law, but treatment varies with who issued the bond.8Office of the Law Revision Counsel. 26 U.S. Code 61 – Gross Income Defined
- Corporate bonds: interest is fully taxable at the federal and state level, treated the same as other interest income.9Internal Revenue Service. Publication 550 – Investment Income and Expenses
- U.S. Treasury bonds: interest is subject to federal tax but exempt from state and local income tax.10TreasuryDirect. Tax Information for EE and I Bonds
- Municipal bonds: interest is generally exempt from federal income tax, and often from state income tax if the bond was issued in your state of residence, though this varies by state.11Office of the Law Revision Counsel. 26 U.S. Code 103 – Interest on State and Local Bonds
These differences change what a yield really means to you. A municipal bond yielding 3.5% may deliver more after-tax income than a corporate bond yielding 4.5%, depending on your tax bracket. Compare after-tax yields when evaluating bonds side by side, not headline coupon rates.
Where to Verify the Numbers
You don’t need to own a bond to research it. Two free public tools give access to pricing data and official documents.
FINRA TRACE (the Trade Reporting and Compliance Engine) publishes real-time transaction data, including price, yield, and volume, for corporate bonds, agency bonds, and U.S. Treasury securities. Non-professional users can access it at no charge through FINRA’s website.12FINRA. TRACE Overview
MSRB EMMA (Electronic Municipal Market Access) is the central source for municipal bond data. It provides official statements (the municipal equivalent of a prospectus), trade prices, ongoing financial disclosures, and event notices for specific bonds.13Municipal Securities Rulemaking Board. Electronic Municipal Market Access (EMMA) Website
Your trade confirmation is also a document worth reading in full. For corporate and agency bond trades, it must include the execution time down to the second, the price or yield, and a link to FINRA’s TRACE data for that bond.5FINRA. Regulatory Notice 17-08 For bonds that can be redeemed early, it must note that possibility and the effect on the yield shown.6eCFR. 17 CFR 240.10b-10 – Confirmation of Transactions Reading the confirmation line by line, rather than glancing at the bottom, catches unexpected costs and terms before they become surprises.