AVEO Pharmaceuticals, Inc. (NASDAQ:AVEO) is down 15.52% in early trading at $14.53. AVEO is down on heavy volume with 1.8 million shares traded. The stock trades 226 thousand shares a day on average. AVEO is down today after cancer data misses investors expectations. The company has a market cap of 620.78 million.

MGIC Investment Corp. (NYSE:MTG) is down 6.17% at $3.50. MTG has traded 4.3 million shares so far today and averages 7.2 million shares a day. MTG is down today after the company said it contributed $200 million to increase capital at its principal insurance operation. The company has a market cap of 714.16 million.

Universal Display Corp. (NASDAQ:PANL) is down 11.53% today at $32.46. PANL is down on large volume with 2.4 million shares traded, well above nearly double its daily average volume. Shares of PANL fell after a report that the company may get lower revenue than expected from its key client Samsung Electronics. The company has a market cap of 1.51 billion.

VelocityShares Daily 2x VIX Sho (NYSE:TVIX) is down 10.70% at $28.53 today. TVIX has traded 1.1 million shares so far today and trades 3.4 million shares a day on average. TVIX follows the VIX so it goes up when the market falls and down when the market rallies. Today the market is rallying big time, that is why we are seeing a big drop in TVIX.

On Track Innovations Ltd. (NASDAQ:OTIV) is down 7.69% today at $1.08. OTVI has traded 126 thousand shares so far today, already above its daily average of 105 thousand shares. OTIV has dropped $0.25 over the past five trading days. The company has a market cap of 33.60 million.

Groupon, Inc. (NASDAQ:GRPN) is down 7.71% in early trading at $19.04. GRPN has traded 1.4 million shares so far today and trades 3.8 million shares a day on average. Groupon shares are down today after a report from Reuters saying that merchants may not run more Groupon deals in the coming months. The company has a market cap of 12.16 billion.