Revisiting fast profit investor sentiment and stock returns during Ramadan

Using stochastic dominance (SD) approach, this paper revisits the Ramadan effect in the stock returns of 15 Muslim countries and altogether as a portfolio. Our study is motivated by the preferred statistical attributes of SD analysis. Specifically, SD requires no normal distribution of returns assumption and it imposes few restrictions on investors' risk-return tradeoff preference. Our results indicate that the Ramadan effect exists in most of Muslim countries used in the study during the sub-periods 1996–2000 and 2001–2006 and in the portfolio during the sub-period 1995–2007. However, its magnitude diminishes during the global financial crisis period (2007–2012). The findings of this paper indicate that previous results are not an artifact deriving from violations of distributional assumptions. We conclude that risk-averse investors would benefit from increased utility by switching from non-Ramadan to Ramadan.