Analysis of Price - Efficiency of Amman Stock Exchange At The Weak Level During 2014-2020

Abstract

This study aims to test the Hypothesis of the Efficiency of the ASE at a Weak level during the period from 05/01/2014 to 31/12/2020 We have used the descriptive analytical Approach to desplay concepts related to Efficiency Theory, and standard study to test the Random Walk Hypothesis of the Oman market index Series through Daily data using the naturel distribution testing and stability tests (Augmented Dickey- Fuller ADF, Philips Perron P.P and KPSS test), the self-correlation test, Autoregressive conditional Hoteroscedastic (ARCH ) and GARCH model. The study found that the time series of market index returns does not follow the naturel distribution in addition to not characterized by Random functioning and its share price is stable, also there is trace of the Autoregressive conditional Hoteroscedactic. from which the Oman Stock Exchange is inefficient at the Weak level.