Which of the following contradicts weak form efficiency? Group of answer choices 1- Stock prices do not reflect information that is only available to insiders. 2- Good or bad recent stock return performance continues over the next three months.  3- The cumulative abnormal returns continue to increase until six months after a firm announces a good unexpected earnings. 4- Technical analysis could not provide abnormal returns. Fundamental analysis could not provide abnormal returns.

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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Which of the following contradicts weak form efficiency?

Group of answer choices

1- Stock prices do not reflect information that is only available to insiders.

2- Good or bad recent stock return performance continues over the next three months. 

3- The cumulative abnormal returns continue to increase until six months after a firm announces a good unexpected earnings.

4- Technical analysis could not provide abnormal returns. Fundamental analysis could not provide abnormal returns.

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