“…While the SEO event period research (Asquith and Mullins, 1986;Masulis and Korwar, 1986;Hull, 1999;Errunza and Miller, 2003;Hull et al, 2012) is abundant, research using the proportion of hedge funds applying a strategy to explain SEO firm price behavior is a more recent phenomenon (Hull et al, 2014(Hull et al, , 2017(Hull et al, , 2018. The SEO firm research has documented distinct patterns of stock price behavior around SEO announcements characterized by positive performance before the announcement month and poorer performance after the announcement.…”