Best and Worst Performing S&P 500 Stocks on Earnings Days

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Includes: AET, AGN, AKAM, AMP, AN, BHI, CBG, CHRW, CI, CTSH, CTXS, DVA, EA, ESRX, ETFC, ETN, EXPE, F, FITB, GCI, GNW, HAL, HOG, IGT, IPG, JNS, KEY, KODK, LNC, LSI-OLD, LXK, MAS, MFE, MS, NVLS-OLD, OI, PBI, PCLN, PCP, PFE, PLD, QCOM, QLGC, RHI, RL, SLM, STI, STT, SUNEQ, SYMC, TER, TMUS, TSS, TXT, UPS, VFC, WYN, XRX
by: Bespoke Investment Group

S&P 500 companies have been reporting strong numbers this earnings season, but which stocks have reacted the most positively? Below is a list of the 43 S&P 500 stocks that have gained more than 5% on the first trading day in reaction to their Q2 earnings reports. As shown, Priceline.com (NASDAQ:PCLN) took the #1 spot this week when it gained 21.95% on Wednesday (the company reported after the close on Tuesday). Citrix Systems (NASDAQ:CTXS) isn't too far behind with a one-day gain of 19.73% in response to its recent report. Harley Davidson (NYSE:HOG), Ameriprise Financial (NYSE:AMP), Janus Capital (NYSE:JNS), and Fifth Third (NASDAQ:FITB) are the only other S&P 500 stocks that have gained more than 10% on their report days this earnings season. Some other notable names on the list of earnings season winners include QUALCOMM (NASDAQ:QCOM), Polo Ralph Lauren (NYSE:RL), Electronic Arts (ERTS), Morgan Stanley (NYSE:MS), and Ford Motor (NYSE:F).

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Now on to the losers. Below is a list of the S&P 500 companies that have declined more than 10% on their report days this season. While just 6 S&P 500 stocks have gained more than 10% on their report days, 15 have declined more than 10%. Four companies have had one-day declines of more than 15% -- QLogic (NASDAQ:QLGC), Pitney Bowes (NYSE:PBI), Eastman Kodak (EK), and MEMC Electronics (WFR).