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如此_AnnieCcc · 2021年01月29日

其实这道题我看完了答案还是不懂

NO.PZ2015122801000006

问题如下:

Queeney is trading by buying for or selling from her own inventory to provide liquidity in the market. Which of the following limit order she placed would most likely to make a new market?

选项:

A.

a limit buy order below the best bid

B.

a buy order with a limit price between the best bid and the best ask

C.

a limit sell order at the best bid

解释:

B is correct.

Making a new market can be described that the limit price of a order is between the best bid and the best ask.

A is behind the market

C is take the market

takethemarket就是马上成交,拿走,spread上升,makethemarket就是报完了不成觉,spread不变,流动性上升,需求上升,makethenewmarket不在对手方范围内,所以spread下降,这道题怎么评判,知识点我倒是记住了

1 个答案

Debrah_品职答疑助手 · 2021年01月30日

同学你好,这个题目问的是哪个选项属于make a new market?

那解答这个题目的关键在于理解make a new market的定义。它指的是报价报在最高的bid(买入价)和最低ask(卖出价)之间,譬如说,现在市场的最高的买入价是10块钱,最低的卖出价是10.5元,买卖报价差0.5。这样的价格是没有办法成交的。

那为了给市场提供流动性,这道题目的Q同学放了一个介于10和10.5之间的价格,譬如卖出价在10.4,买卖报价差缩小到0.4,更容易成交,这样为市场提供了流动性。

C选项相当于是直接在10块钱卖出,直接成交。这不属于make a new market

A选项相当于Q同学在9.9块钱放了个单子,那买卖价差不因为这个单子减少,属于behind the market。

🍥 雯雯酱🍩 · 2022年07月03日

疑惑C选项,直接成交不是也改变市场了吗?并且spread变成了0对吗?

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