NO.PZ2023040301000040
问题如下：
Jim White has sold short 100 shares of Super Stores at a price of $42 per share. He has also simultaneously placed a "good-till-cancelled, stop 50, limit 55 buy" order. Assume that if the stop condition specified by White is satisfied and the order becomes valid, it will get executed. Excluding transaction costs, what is the maximum possible loss that White can have?
选项：
A.$800
$1,300
Unlimited
解释：
If the stock price crosses $50, the stop buy order will be triggered and will get executed at a maximum limit price of $55. The maximum loss per share is $13 = $55 -$42, or $1,300 for 100 shares.
sold short 100 shares 如何理解。
