Options Assignment Shortfall Calculator

Enter your account details and position parameters to calculate exact cash shortfall or surplus upon assignment.

How Assignment Shortfall Works

Selling a cash-secured put obligates you to buy 100 shares per contract at the strike price. If your $5,000 account sells a put at a $45 strike, assignment requires $4,500 cash.

Our calculator checks cash-secured puts, covered calls, and naked short calls to ensure your buying power is never blown out.