“…We offer one possible reason that IPO firms with abnormal net sales by top executives may exhibit high idiosyncratic risk and, as such, high limits to arbitrage, which prevent arbitrageurs from correcting the stock prices leading to underperformance in the long run. IPO firms are usually young and relatively unknown to the public, which tend to be accompanied by an elevated level of idiosyncratic risk contained in their stocks (Fink et al, 2010; Boehme and Colak, 2012). Alternatively, idiosyncratic risk is a deterrent to arbitrage (Brav, Heaton, and Li, 2010).…”