NO.PZ2015122802000027
问题如下：
Currently, the market in a stock is "$54.62 bid, offered at $54.71". A new sell limit order is placed at $54.62. This limit order is said to:
选项：
A.
take the market.
B.
make the market.
C.
make a new market.
解释：
A is correct.
This order is said to take the market. The new sell order is at $54.62, which is at the current best bid. Therefore, the new sell order will immediately trade with the current best bid and is taking the market.
考点：Execution Instructions
目前市场dealer对某公司的报价为$54.62 bid, offered at $54.71。投资者希望以54.62的价格卖出股票。问下列哪个说法是最正确的。
A. 该报价可以成交。take the market就是以报出的指令价格成交。打比比方sell order价格正好等于best bid，立即成交了，这就是take the market。现在投资者报的卖价54.62正好等于dealer的最高买价54.62，因此该订单可以马上成交。
B.该报价可以看作是一次做市。make the market指如若买价报在best bid或卖价报在 best ask,就是一次做市。本题的best bid和 best ask分别为54.62和5.90，而新的卖价是54.62没有落在best ask，所以这不叫make the market。
C.该报价可以看作是做了一个新市。make a new market, 它是指报价报在最高的bid和最低ask之间就叫做make a new market。根据dealer的买卖报价，make a new market的范围是（54.62-5.90）也就是best bid-best ask，所以不是make a new market.
解析中的5. 9是怎么来的？spread不应该是54. 71-54. 62=0. 09嘛？
