This study addresses a number of important market microstructure issues associated with exchange‐traded equity options having significant research implications for studies investigating clustering on option strike prices. Price threshold levels associated with exchange listing and the...

Examining the years 1970 to 1998, Bouman and Jacobsen (2002) document unusually high monthly returns during the November-April periods for both United States (U.S.) and foreign stock markets and label this phenomenon the Halloween effect. Their research suggests that the Halloween effect...

Bouman and Jacobsen (American Economic Review 92(5), 1618–1635, 2002) examine monthly stock returns for major world stock markets and conclude that returns are significantly lower during the May–October periods versus the November–April periods in 36 of 37 markets examined. They argue...

In this paper, the authors document regularities in trading patterns of individual and institutional investors related to the day of the week. They find a relative increase in trading activity by individuals on Mondays. In addition, there is a tendency for individuals to increase the number of...

This paper examines a unique data set consisting of Japanese equity returns for the Friday, Monday, and Tuesday surrounding U.S. Monday holiday closures. The objective is to neutralize the impact of spillover effects from New York to Tokyo. Prior studies find that Japanese returns are negative...