margin call



  • noun a request for a purchaser of a futures contract or an option to pay more margin, since the fall in the price of the securities or commodity has removed the value of the original margin deposited


  • An action taken by a broker in the event of the balance of a customer account falling below a certain level of equity. The broker may demand additional funds to meet minimum maintenance requirements or otherwise liquidate the customer's account if the funds are not forthcoming. also called maintenance call.