A broker is a party that mediates between a buyer and a seller. A broker who also acts as a seller or as a buyer becomes a principal party to the deal.

A stock broker or stockbroker is a qualified and regulated professional who buys and sells shares and other securities through market makers or Agency Only Firms on behalf of ...

broker - definition of broker - An individual or firm which acts as an intermediary between a buyer and seller, usually charging a commission. For securities and most other...

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Open an online stock brokerage account and make online investing fast and easy. ... Broker Center Browse the offerings from different brokers, or choose a single broker to work ...