Monday effect in Brazilian hedge funds with immediate redemption

• The weekday effect is well documented in stocks of financial markets.
• There is still opportunity for research about the Monday effect in investment funds.
• Our paper explores the Monday effect in a sample of Brazilian hedge funds with immediate redemption.
• Investment funds tend to present lower returns in Mondays, in comparison with other days of the week.
• The Monday effect in investment funds seems to be more prominent during periods with high inflation rates.

The weekday effect is characterized by a behaviour pattern in stock returns connected with certain days of the week. Several studies on this subject have been published in conferences and journals. However, the analysis of this anomaly with returns of investment funds still represents an opportunity for new studies. Thus, the aim of this research is to analyse the Monday Effect in Brazilian hedge funds that do not have redemption restrictions. We collected daily returns from 2162 hedge funds, comprising a total of 2,689,791 observations from January/2005 to March/2014. To test the hypotheses, we used panel data, and we also employed a quantitative test to evaluate the presence/absence of unit root. The main results showed that, on average, Mondays showed lower returns than the other days of the week. Furthermore, inflation rate seems to be a relevant variable to better understand this result with data from emerging economies.

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