China Ming Yang Wind Power Group Ltd (NYSE:MY) on June 12 announced that it has entered into a heads of agreement with Marin Energi Testcenter AS (“MetCentre”) to erect a 6.0MW Super Compact Drive  (“SCD”) wind turbine generator in the Karmoy wind turbine demonstration area off the coast of Karmoy Island in Norway. MetCentre is a Norwegian test centre for marine energy offering infrastructure and services to off-shore wind power. China Ming Yang Wind Power Group Ltd (NYSE:MY) stock performance was -7.23% in last session and finished the day at $2.95. Traded volume was 2.90million shares in the last session and the average volume of the stock remained 1.67million shares. The beta of the stock remained 2.84. China Ming Yang Wind Power Group Ltd (NYSE:MY) insider ownership is 2.02%.

This week, TASER International, Inc. (NASDAQ:TASR) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). Taser International develops, assembles, and markets less-lethal weapons for use in the law enforcement, private security, and personal defense markets. TASER International, Inc. (NASDAQ:TASR) dropped -6.90 percent to $12.00 Tuesday on volume of 2.10million shares. The intra-day range of the stock was $11.97 to $13.02. TASER International, Inc. (NASDAQ:TASR) has a market capitalization of $646.40million.

Beacon Roofing Supply (NASDAQ:BECN) was downgraded by William Blair from an “outperform” rating to a “market perform” rating in a research note issued on Tuesday. Beacon Roofing Supply, Inc. (NASDAQ:BECN)’s stock on July 08, 2014 reported a decrease of -5.88% to the closing price of $30.56. Its fifty two weeks range is $30.44 -$42.70. The total market capitalization recorded $1.51billion. The overall volume in the last trading session was 1.78million shares. In its share capital, BECN has 49.31million outstanding shares.

Arotech Corp (NASDAQ:ARTX) CFO Thomas J. Paup unloaded 15,000 shares of the company’s stock on the open market in a transaction that occurred on Tuesday, July 1st. The stock was sold at an average price of $4.46, for a total transaction of $66,900.00. Following the transaction, the chief financial officer now directly owns 235,596 shares of the company’s stock, valued at approximately $1,050,758.On Tuesday, shares of Arotech Corporation (NASDAQ:ARTX) dropped -7.04% to close the day at $3.96. Company return on investment (ROI) is 5.00% and its monthly performance is recorded as -4.81%.  Arotech Corporation (NASDAQ:ARTX) quarterly revenue growth is -16.46%.

Hydrogenics Corporation (NASDAQ:HYGS) (“Hydrogenics” or “the Company”), a leading developer and manufacturer of hydrogen generation and hydrogen-based power systems, on 23 June 2014 announced the signing of a definitive agreement to create a joint venture with Kolon Water & Energy, part of a leading conglomerate in South Korea. Kolon Group is one of the nation’s largest industrial companies, with a focus on chemicals and textiles, and its subsidiary, Kolon Water & Energy, has identified the potential for renewable power generation projects in South Korea and other Asian regions. Hydrogenics Corporation (USA) (NASDAQ:HYGS) stock performance was -6.10% in last session and finished the day at $17.09. Traded volume was 158,308.00million shares in the last session and the average volume of the stock remained 156.65K shares. The beta of the stock remained 0.23.