关于market impact可以这么回答吗:market impact is associate with liquidity. Greater liquidity reduces market impact of a particular trade. Liquidity can be measured by ADV and ABC has the highest ADV of 23%, representing low liquidity in the market. Therefore, ABC has the largest market impact.
对于这里的知识点需要老师讲解一下,我的理解是market impact depends on liquidity,而liquidity可以被AVD和bid ask spread确定,但是这里的ABC的bid ask spread没有XYZ大,为什么XYZ的market impact不是最大的?
还是说应该把liquidity和market impact分开理解,market impact就是用ADV measure的,和bid ask spread无关