“…However, a relatively small number of investigations have begun to study the existence of monthly calendar anomalies in the stock markets of Muslim countries such as Pakistan (Ali and Akbar, 2009;Zafar et al, 2010;Rafique and Shah, 2012). Calendar anomalies may be explained by the tax system of a country (Dyl, 1977;Roll, 1983;Dbouk et al, 2013), the institutional structures within a market (Hepsen, 2012), the trading mechanisms that may be in place (Fama and Blume, 1996) or cultural factors (Chan et al, 1996;Bley and Saad, 2010); hence differences would be expected in the monthly performance of equities from one country to another. Thus, an analysis for a country such as Pakistan may offer interesting insights because monthly anomalies may be different from those in developed nations.…”