NO.PZ2015122802000034
问题如下：
Zhenhu Li has submitted an immediate-or-cancel buy order for 500 shares of a company at a limit price of CNY 74.25. There are two sell limit orders standing in that stock’s order book at that time. One is for 300 shares at a limit price of CNY 74.30 and the other is for 400 shares at a limit price of CNY 74.35. How many shares in Li’s order would get cancelled?
选项：
A. None (the order would remain open but unfilled).
B. 200 (300 shares would get filled).
C. 500 (there would be no fill).
解释：
C is correct.
The order for 500 shares would get cancelled; there would be no fill. Li is willing to buy at CNY 74.25 or less but the minimum offer price in the book is CNY 74.30; therefore, no part of the order would be filled. Because Li’s order is immediate-or cancel, it would be cancelled.
考点：Instructions Of Transaction Processes
市场上的两个卖价都比李同学报的买价要高，因此李同学一股也买不到，这个指令是不成交立马取消，所以500股全部撤销。
如果有合适卖价，但数量不够，那就是有多少数量成交多少，剩余的取消对吧？
