55 Semi Strong Form EMH

This video delves into the concept of semi-strong form market efficiency, explaining that it suggests consistent abnormal profits cannot be made from public information. Public information includes not only stock prices but also fundamental data like financial statements and company newsletters, rendering fundamental analysis ineffective for achieving alpha if prices instantly reflect this data. However, the video explores the post-earnings announcement drift as an anomaly that challenges this efficiency, demonstrating how surprising earnings results can lead to prolonged price movements beyond immediate market adjustments. We examine both positive and negative earnings surprises and their impact on stock returns. Visit AxiomTutoring.com and subscribe to @AxiomTutoringCourses.