The average stock this earnings season has fallen 0.36% on its earnings reaction day, but the 40 stocks below are the ones that have seen the biggest one-day gains in reaction to their earnings reports. As shown, Encore Capital (ECPG) ranks at the top of the list with a gain of 34.63%, followed closely by Metaldyne Performance (MPG) with a gain of 34.27%. Blue Nile (NILE), ConforMIS (CFMS), and Sucampo Pharma (SCMP) round out the top five — all with gains of more than 33%. Other notables on the list of big earnings season winners include NVIDIA (NVDA), which is up 23.45% today in reaction to earnings, Netflix (NFLX), Logitech (LOGI), Bankrate (RATE), BE Aerospace (BEAV), and SodaStream (SODA).
Below is a list of the 40 worst performing stocks on their earnings reaction days this earnings season. All but one of the stocks listed had one-day drops of more than 20%. Ouch.