... show significant underreaction to positive shocks and overreaction to negative shocks, consistent with behavioural explanations and the UIH . These reactions suggest short-term return predictability, challenging weak-form efficiency in both Islamic and conventional markets. However, two-sample...

..., overreaction and underreaction and herd behavior) as mediator variables in the Egyptian stock market. Design/methodology/approach This paper collects data from a structured questionnaire survey carried out among 384 local Egyptian, foreign, institutional and individual investors. This paper used a partial...