So far this earnings season, the average stock that has reported has gained 0.27% on its earnings reaction day. (For companies that report before the open, its earnings reaction day is that day. For companies that report after the close, its earnings reaction day is the next trading day.)
Below is a list of the stocks that have gained more than 5% on their earnings reaction days this season. As shown, Boston Beer (SAM) is at the top of the list with a one-day gain of more than 18%. Allied World Assurance (AWH) ranks second with a gain of 15.8%, followed by Medidata Solutions (MDSO) at 14.66%. IMAX and Marvell (MRVL) round out the top five with one-day gains of just over 14%. Southwestern Energy (SWN) has been the top performing S&P 500 stock with a gain of 10.98%, followed closely by EBAY at +10.89%. Other notables on the list of earnings season winners include Biogen (BIIB), Qualcomm (QCOM), Alcoa (AA), and Microsoft (MSFT).
Essendant (ESND) has been the biggest loser on earnings so far this season with a one-day drop of 36.57%! Skechers (SKX) has been second worst at -22%, followed by Abaxis (ABAX) at -13.13%. Netflix (NFLX) has the unfortunate title of being the biggest loser in the S&P 500 so far this season with a decline of 13.13%. Other notables on the list of losers include Southwest Air (LUV), Skyworks (SWKS), Hasbro (HAS), and Kinder Morgan (KMI).