A Study of Day of the Week Effect in Karachi Stock Exchange During Different Political Regimes in Pakistan

Abstract

In this study we attempt to examine the existence of day of the week effect in Kara-chi Stock Exchange during the three prominent political regimes of PML-N, PPP, and PML-Q, in context of Pakistan using six sub-samples (three on basis of changing trading days, and three on basis of changing political regimes) extracted from the KSE-100 index which is the benchmark of Pakistan's equity market and is the biggest and most dynamic operational stock exchange of Pakistan having a share of about 70 percent of total stock transition. Dummy variable approach is utilized in this study to uncover the day of the week effect in trading days during the sub-samples. The study finds evidence of existence of significant day of the week effect during the PPP regime with pronounced negative first trading day returns, while no significant negative returns are discovered during the PML-N and PML-Q regimes.