A type of securities market in which dealers transact with other dealers. In a dealer market, transactions are concluded between dealers for their own accounts rather than between brokers (acting as intermediaries for clients). Dealers are market makers who provide liquidity by standing ready to make a market in a security, whether as buyers or sellers. In a dealer market, all orders must be posted to dealers for execution. In this sense, a dealer quotes bid and ask prices at which he is willing to trade.

Examples of securities traded in dealer markets include municipal and government securities.