没明白

问题如下：

Which of the following market anomalies is inconsistent with weak-form market efficiency?

选项：

A.

Earnings surprise

B.

Momentum pattern

C.

Closed-end fund discount

解释：

Trading based on historical momentum indicates that price patterns exist and can be exploited by using historical price information. A momentum trading strategy that produces abnormal returns contradicts the weak form of the efficient market hypothesis, which states that investors cannot earn abnormal returns on the basis of past trends in prices