Investor’s Alert: Plug Power Inc (NASDAQ:PLUG), Facebook Inc (NASDAQ:FB), Microsoft Corporation (NASDAQ:MSFT), Yahoo! Inc. (NASDAQ:YHOO)

Plug Power Inc (NASDAQ:PLUG) said in February it would supply 1,738 hydrogen fuel cells, used to power forklifts and other material-handling equipment, to Wal-Mart. Plug Power Inc (NASDAQ:PLUG) stock performance was -13.22% in last session and finished the day at $4.66. Traded volume was 42.91million shares in the last session and the average volume of the stock remained 45.25million shares. The beta of the stock remained 1.22. Plug Power Inc (NASDAQ:PLUG) insider ownership is 0.90%.

Facebook Inc. (NASDAQ:FB) CEO Mark Zuckerberg total compensation last year was $653,165, including a $1 base salary and including the passenger fees, fuel, crew and catering costs for his use of private planes for personal reasons, as part of his security programme. Facebook Inc (NASDAQ:FB) dropped -2.72 percent to $56.14 Monday on volume of 107.76million shares. The intra-day range of the stock was $54.66 to $58.31. Facebook Inc (NASDAQ:FB) has a market capitalization of $142.99billion.

Microsoft Corporation (NASDAQ:MSFT) says a security gap in Internet Explorer could allow an attacker to take complete control of a computer if the user clicks on a malicious link. Microsoft Corporation (NASDAQ:MSFT) said Saturday that it was aware of “limited, targeted attacks” that tried to exploit the security gap. The company is working on a fix which it plans to provide in a software update on May 13. Microsoft Corporation (NASDAQ:MSFT)’s stock on Apr 28, 2014 reported a increase of 2.41% to the closing price of $40.87. Its fifty two weeks range is $30.84 -$41.66. The total market capitalization recorded $337.60billion. The overall volume in the last trading session was 50.61million shares. In its share capital, MSFT has 8.26billion outstanding shares.

Yahoo! Inc. (NASDAQ:YHOO) Chief Executive Marissa Mayer announced on Monday evening that Yahoo! Inc. (NASDAQ:YHOO) is commissioning two original TV-length comedy series that will be shown exclusively on its websites and mobile apps. On Monday, shares of Yahoo! Inc. (NASDAQ:YHOO) dropped -1.42% to close the day at $33.99. Company return on investment (ROI) is 3.10% and its monthly performance is recorded as -4.50%. Yahoo! Inc. (NASDAQ:YHOO) quarterly revenue growth is -7.26%.