Shares of fuel cell maker Plug Power Inc (NASDAQ:PLUG) plunged 41.5% to $6.03 after short-seller Citron Research said the fair value of the stock was 50 cents. Shares of other fuel cell makers fell, with Fuel Cell Energy down 16.5% to $3.28, Ballard Power Systems off 25.9% to $5.10 and Hydrogenics Corp down 14.7%. Plug Power Inc (NASDAQ:PLUG) stock performance was -41.51% in last session and finished the day at $6.03. Traded volume was 242,181,968 million shares in the last session and the average volume of the stock remained 31.54 million shares. The beta of the stock remained 1.23. Plug Power Inc (NASDAQ:PLUG) insider ownership is 4.90%.

Shares of Corning (NYSE:GLW) were the recipient of some unusual options trading activity on Monday. Traders acquired 20,928 call options on the stock, ARN reports. This represents an increase of approximately 183% compared to the typical volume of 7,402 call options. Corning Incorporated (NYSE:GLW) dropped -0.67 percent to $19.26 yesterday on volume of 8.34 million shares. The intra-day range of the stock was $19.16 to $19.53. Corning Incorporated (NYSE:GLW) has a market capitalization of $26.81 million.

American Superconductor Corporation (NASDAQ:AMSC) sued Sinovel, and two of the four portions of the case are still awaiting final decisions in higher courts in China. This implosion in 2011 was so bad that it made AMSC among our worst performing stocks of 2011. American Superconductor Corporation (NASDAQ:AMSC)’s stock on Mar 11, 2014 reported an increase of 5.96% to the closing price of $ 2.31. Its fifty two weeks range is $1.37 -$3.06. The total market capitalization recorded $157.40 million. The overall volume in the last trading session was 6,348,143 million shares. In its share capital, American Superconductor Corporation (NASDAQ:AMSC) has 62.31 million outstanding shares.

China BAK Battery (NASDAQ:CBAK) surged 74% in just three days… but such advance is attributed to a very low base. The stock rose $.28 or 7.55% on Monday. On Tuesday, shares of China BAK Battery Inc. (NASDAQ:CBAK) dropped -0.27% to close the day at $3.65. Company return on investment (ROI) is -98.70% and its monthly performance is recorded as 131.01%. China BAK Battery Inc. (NASDAQ:CBAK) quarterly revenue growth is 70.56%.