Welcome to the RJO Futures trading terms glossary. Within this glossary, you will find an expansive list of trading terms covering commodity, option, and futures trading terminology. Bookmark this section as a quick reference for definitions of trading terms as you browse the Internet and our site for more information on futures and options trading within the financial and commodities markets.


Security Deposit

The amount of funds that must be deposited by a customer with his broker for each futures contract as a guarantee of fulfillment of the contract. It is not considered part payment of purchase. Used interchangeably with margin.