Secondary marketThe secondary market, also called the aftermarket and follow on public offering, is the financial market in which previously issued financial instruments such as stock, bonds, options, and futures are bought and sold. The initial sale of the security by the issuer to a purchaser, who pays proceeds to the issuer, is the primary market. All sales after the initial sale of the security are sales in the secondary market.
Exchange (organized market)An exchange, bourse (bʊərs), trading exchange or trading venue is an organized market where (especially) tradable securities, commodities, foreign exchange, futures, and options contracts are bought and sold. In the twelfth century, foreign exchange dealers in France were responsible for controlling and regulating the debts of agricultural communities on behalf of banks. These were actually the first brokers. They met on the Grand Bridge in Paris, the current Pont au Change. It takes its name from the forex brokers.
ContractA contract is an agreement that specifies certain legally enforceable rights and obligations pertaining to two or more mutually agreeing parties. A contract typically involves the transfer of goods, services, money, or a promise to transfer any of those at a future date. In the event of a breach of contract, the injured party may seek judicial remedies such as damages or rescission. A binding agreement between actors in international law is known as a treaty.
Margin (finance)In finance, margin is the collateral that a holder of a financial instrument has to deposit with a counterparty (most often their broker or an exchange) to cover some or all of the credit risk the holder poses for the counterparty. This risk can arise if the holder has done any of the following: Borrowed cash from the counterparty to buy financial instruments, Borrowed financial instruments to sell them short, Entered into a derivative contract.