Days of the Week Effect in Dhaka Stock Exchange: Evidence from Small Portfolios of Banking Sector

Seasonality study in return on shares prices is very much prominent in the field of finance. The scope of this study is to find of days-of-the-week-effect in small portfolios. Unlike traditional methodology, this study introduces a micro approach to study days-of-the-week effect. Four different types of trading strategies have been used in this study. The result shows that the strategy "buy on day 1 and sell on Monday" produces the highest mean daily return (MDR), 1.31%, which is around 132% higher than the next best MDR (0.564%) from the D1D6 strategy - buy on day one and sell on day six. The study finds that on average, above average return is not possible if portfolios are sold on Saturdays and Mondays. For Bangladesh, it can be termed as "Saturday Effect" as Saturday is the first trading day following the weekend. The findings of this study significantly identify two things - beginning of the week effect at the time of buying, and Monday effect and weekend effect at the time of selling.