In-class Exercise Old Economy Traders opened an account to short sell 2,400 shares of Internet Dreams at $68 per share. The initial margin requirement was 50%. (The margin account pays no interest.) A year later, the price of Internet Dreams has risen from $68 to $80. What is the remaining margin in the account? - If the maintenance margin requirement is 30%, will Old Economy receive a margin call? What is the rate of return on the investment