You short sold 650 shares of stock at a price of $35 and an initial margin of 70 percent. If the maintenance margin is 40 percent, at what share price will you receive a margin call? What is your account equity at this stock price? Solution Price at which margin call will occur is determined as:- = Executed price * (1-Maintenance margin)/(1-Initial margin)=35*(1-0.4)/(1-0.7)=$70 per share. This, at a share price of $70 or above, a margin call will occur.At this price, account equity =70*650=$45,500.