A margin account gives you the ability to borrow for the purchase of securities or to borrow cash against the equity of your account. For more information on margin, please refer to our Reference Guide under the margin section. Click here to view the most recent list. This list is subject to change.
All short sales are subject to our ability to borrow the stock.
Stocks which can no longer be borrowed must be bought-in immediately. If exercise of all sides results in a loss, the requirement is maximum potential loss. If exercise of all sides results in a profit, requirement is cost of spread. Uncovered Spreads Same as uncovered requirements above. Uncovered Straddles or Combinations Greater of the uncovered requirement of put or call plus the preminm of the other.