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Glossary

Secondary market

Where investors buy and sell existing securities among themselves, such as on stock exchanges, with no money going to the issuer.

On this page
  1. How it works
  2. Why it matters
  3. Related terms

The secondary market is where previously issued securities change hands between investors. When you buy shares of a public company through your broker, you are almost always buying them from another investor, not from the company. The issuer received its money when the securities were first sold in the Primary market; secondary trades move ownership and set prices, but the company gets nothing from them.

How it works

Most secondary trading in stocks takes place on exchanges such as the NYSE and Nasdaq, on alternative trading systems including dark pools, and through wholesale market makers that fill retail orders. Bonds trade mostly Over the counter (OTC) between dealers. Each trade needs a buyer and a seller, and the price moves to wherever they meet.

Why it matters

The secondary market is what makes the primary market work. Investors are far more willing to buy newly issued stocks and bonds when they know they can sell later. Key benefits:

  • Liquidity. Holders can turn securities into cash quickly.
  • Price discovery. Continuous trading reveals what investors collectively think a company is worth, which feeds back into decisions on borrowing, acquisitions and new issues.
  • Lower cost of capital. Liquid shares command higher prices, so companies can raise money more cheaply.

Secondary trading also carries costs: spreads, fees and market impact. US secondary markets are regulated by the SEC, with FINRA overseeing broker-dealers.

Written and fact-checked by Finabase Research. Last reviewed . Spotted an error? Tell us.

Educational content, not investment advice. Finabase Learn explains how markets and tools work. It does not recommend any security or strategy, and examples are for illustration only. Investing involves risk, including the loss of principal. Rules and figures are for the United States unless stated and can change — check the cited source before you act.