you make the call

Profit for the uncovered put write is limited to the premiums received for the options sold and unlike the covered put write, since the uncovered put writer is not short on the underlying stock, he does not have to bear any loss should the price of the security go up at expiration. The naked put writer sells slightly out-of-the-money puts month after month, collecting premiums as long as the stock price of the underlying remains above the put strike price at expiration.