Cell Therapeutics, Inc. (NASDAQ:CTIC) is down 23.04% in midday trading at $1.57. CTIC has traded 19.5 million shares so far today, well above its daily average of 1.3 million shares. CTIC shares are getting hit hard today after pricing public offering at $1.40 per share. CTIC shares have dropped more than $1 a share over the past four days. The company has a market cap of 67.20 million.
Zynga, Inc. (NASDAQ:ZNGA) is down 17.23% today at $2.3350. ZNGA has traded 91.8 million shares at midday, 5 times its normal trading volume. ZNGA shares are plummeting today after Zynga lowered its 2012 outlook. The company has a market cap of 1.76 billion.
Mercury Computer Systems, Inc. (NASDAQ:MRCY) is down 17.82% today at $7.92. MRCY has traded 1.04 million shares so far today, 10 times its daily average volume. MRCY shares were downgraded to neutral from buy at Sterne Agee after the company cut its outlook. The company has a market cap of 246.28 million.
Geron Corporation (NASDAQ:GERN) is down 8.87% today at $1.45. GERN has traded 976 thousand shares in midday trading and trades 1.5 million shares a day on average. GERN shares have fallen about $0.25 a share over the past week. The company has a market cap of 189.01 million.
First Solar, Inc. (NASDAQ:FSLR) is down 11.66% today at $19.33. FSLR has traded 9.3 million shares so far today, 2 million shares more than its daily average. FSLR shares are down today after Avian Securities downgraded the stock to negative from positive. The company has a market cap of 1.72 billion.
Aeterna Zentaris (NASDAQ:AEZS) is down 11.42% today at $3.08. AEZS has traded 1.7 million shares so far today, well above its daily average of 1.6 million shares. Aeterna conducted a six for one reverse stock split that took place today. The company has a market cap of 346.11 million.