In plain language — In the primary market, money goes to issuers in exchange for new securities. In the secondary market, investors trade existing securities with each other. Prices, yields and liquidity connect the two.
A bond starts with documents defining issuer, face value, coupons, maturity, seniority, security and embedded options. It can be allocated through an auction, syndication, placement or another process. After settlement, it may trade in the secondary market, where purchase cash goes to the selling counterparty rather than the issuer.
Primary market: forming the issue
The issuer or auction agent defines quantity, calendar and participation rules. A competitive bid may specify yield or price; a noncompetitive bid may accept the auction result within stated limits. U.S. Treasury auctions provide a documented single-price example, but their rules should not be assumed for corporate bonds or other sovereign markets.
Auction results connect price and yield. If the awarded yield exceeds the coupon, price may be below par; if it is lower, price may be above par. For reopened securities, TreasuryDirect explains that accrued interest can be added to the purchase amount, so required cash need not equal the quoted price alone.
Before participating, read offering documents, timetable, settlement, allocation rules, limits, charges and order treatment. “Awarded” does not mean cash and security have already settled.
Secondary market: price, dealers and liquidity
Existing bonds may trade electronically, through dealers or by request for quote, depending on market and access. Bid is where a counterparty is prepared to buy; ask is where it sells. Their distance is only part of execution cost. Depth, size, market impact, timing and the ability to locate a security also matter.
Price and yield respond to the risk-free curve, credit, liquidity, options and supply-demand conditions. A new issue can trade differently from an older security with similar maturity. In government markets, on-the-run and off-the-run securities may have different liquidity, without that becoming a permanent rule.
Trade confirmation should separate clean price, accrued interest, dirty price, face amount, currency and costs. An indicative quote is not necessarily executable for the desired quantity.
The bridge between both markets
Secondary levels provide references for new issues: government or swap curves, comparable bonds and spreads help form a pricing range. A large, liquid new issue can then become a reference for later trades. This feedback does not guarantee that primary pricing is “better” or that secondary liquidity will always be available.
A professional review also considers when-issued trading, settlement fails, repo specialness, dealer inventory and new-issue concession. These are observable mechanisms, not shortcuts for predicting price.
At minimum, analysis separates contractual terms and capital structure; price, yield and reference curve; allocation and settlement process; post-issue liquidity; and rate, credit, call and currency risk.
Common error — Treating auction purchase as a guaranteed price or absence of risk. Market value can change after allocation, and the issuer keeps its contractual credit risks.
Questions this page answers
Who receives the cash? How are price and yield determined? Is an order competitive or noncompetitive? When does settlement occur? Is a secondary quote executable, and for what size? Which contractual terms remain fixed as price changes?