as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
exercise a put option when shorting is not possible
user
you are the one lending yourself the shares to sell;you purchase the stock at market price and sell at the strike price of the option to the put seller when you exercise the option.
assistant