这里并没有说“market bid”的概念啊，好像总是有这些新的概念在题目里，协会出题也会这样吗？

问题如下：

Consider the following limit order book for a stock. The bid and ask sizes are number of shares in hundreds.

According to the information, which of the following statements is correct?

选项：

A.

The market bid and offered is 8.98 - 9.88.

B.

The market bid and offered is 8.64 - 9.88.

C.

The market bid and offered is 8.98 - 9.56.

解释：

C is correct.

The market is 8.98 bid, offered at 9.56. The best bid is at $8.98 and the best offer is $9.56.

考点：Instructions Of Transaction Processes

市场的bid是dealer报出来一串买价中最高的那个，而市场ask是dealer报出来一串卖价中最低的那个，此时买卖价差最小，这是一对最有可能成交的价格。因此根据列表：the market bid and offered is 8.98 - 9.56.