Vertex Pharmaceuticals Incorporated (NASDAQ:VRTX) is down 14.49% this morning at $55.44. VRTX has traded 12.2 million shares so far today, 4 times its daily average. VRTX shares are dropping after previous results of a study treating cystic fibrosis patients overstated the benefits of a drug combination. The company has a market cap of 11.55 billion.
KIT digital, Inc. (NASDAQ:KITD) is down 7.89% today at $3.27. KITD has traded 742 thousand shares so far today and trades 1.6 million shares a day on average. KITD shares are down more than 12% over the past five days. The company has a market cap of 156.77 million.
Tractor Supply Company (NASDAQ:TSCO) is down 7.17% today at $92.48. TSCO has traded 1.7 million shares so far today, well above its daily average of 833 thousand shares. TSCO rallied from $92 to nearly $100 a share last week, and is now seeing a bit of a sell off today. The company has a market cap of 6.64 billion.
Zynga, Inc. (NASDAQ:ZNGA) is down 6.81% this morning at $6.15. ZNGA has traded 26.8 million shares so far today, above tis daily average of 16.1 million shares. ZNGA’s sell off is accelerating this morning as Facebook trades below $30 a share. The company has a market cap of 4.45 billion.
Pacific Biosciences of California, Inc. (NASDAQ:PACB) is down 7.31% today at $2.41. PACB has traded 454 thousand shares so far today, 150 thousand shares more than its daily average. PACB shares are down about $0.40 a share over the past two trading days after the stock rose from $2.20 to $2.80 last week. The company has a market cap of 134.51 million.
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