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.
M
A call from a broker or firm to a customer, to bring margin deposits up to a required minimum level. Exchange rules state that margin calls must be satisfied by bringing your account equity back to the Initial Margin level. Failure to meet a margin call immediately may result in some or all of the trader’s positions being liquidated by the firm without prior notification.