Purpose – The purpose of the paper is to attempt to shed light on whether the use of general indexes may mask sectoral efficiencies by investigating the random walk (RW) and weak-form efficiency (WFE) hypotheses in the equity markets of Jordan, Qatar, Saudi Arabia, and the United Arab...

Purpose – The purpose of the paper is to attempt to shed light on whether the use of general indexes may mask sectoral efficiencies by investigating the random walk (RW) and weak‐form efficiency (WFE) hypotheses in the equity markets of Jordan, Qatar, Saudi Arabia, and the United Arab...