Plug Power Inc (NASDAQ:PLUG) climbed 5.5% after the fuel-cell specialist got an analyst upgrade. Yet, as has happened with increasing frequency in this volatile market, the upgrade came with a catch: the analyst also reduced the price target on the company, in part to reflect the plunge in Plug Power’s share price over the past few months. Plug Power Inc (NASDAQ:PLUG) stock performance was 6.45% in last session and finished the day at $4.29. Traded volume was 29.88million shares in the last session and the average volume of the stock remained 47.65million shares. The beta of the stock remained 1.26. Plug Power Inc (NASDAQ:PLUG) insider ownership is 0.90%.

The sentiment was overall bearish in this space with two other fuel cell makers, FuelCell Energy Inc. (NASDAQ:FCEL) and Ballard Power Systems Inc. (BLDP – Snapshot Report) losing a respective 5.09% and 5.33% yesterday. It seems that the investors are not too pleased with these companies at the moment. FuelCell Energy Inc (NASDAQ:FCEL) rose 4.59 percent to $2.16 Friday on volume of 5.32million shares. The intra-day range of the stock was $2.03 to $2.18. FuelCell Energy Inc (NASDAQ:FCEL) has a market capitalization of $511.93million.

Eddie Schwartz, the head of Verizon Communications Inc (NYSE:VZ)’s security and cyber intelligence practice, said the upside of Snowden’s revelations were starting “good, interesting dialogue” on the topic of privacy. Verizon Communications Inc. (NYSE:VZ)’s stock on May 16, 2014 reported a increase of 2.31% to the closing price of $49.07. Its fifty two weeks range is $45.08 -$53.56. The total market capitalization recorded $203.21billion. The overall volume in the last trading session was 29.39million shares. In its share capital, VZ has 4.14billion outstanding shares.

Oi SA (ADR) (NYSE:OIBR) slumped -3.15% currently trading at $0.857 after the company posted better-than-expected revenue for the first quarter. However, it faced a second consecutive quarter of revenue decline, highlighting its merger with Portugal Telecom SGPS SA to fend over more nimble competitors. Sales for the quarter dropped 2.3 percent to 6.88 billion reais ($3.1 billion), topping analysts’ average estimate of 6.8 billion reais. On Friday, shares of Oi SA (ADR) (NYSE:OIBR) advanced 4.77% to close the day at $0.835. Company monthly performance is recorded as -27.39%. Oi SA (ADR) (NYSE:OIBR) quarterly revenue growth is -53.61%.

Applied Materials Inc. (NASDAQ:AMAT) Thursday reported a swing to profit in the second quarter, driven largely by a 19 percent growth in revenues and the absence of an impairment charge recorded last year. The semiconductor equipment maker’s earnings and revenues for the quarter were in line with Wall Street estimates. Adjusted earnings for the second quarter were $348 million or $0.28 per share, up from $199 million or $0.16 per share last year. On average, 19 analysts polled by Thomson Reuters expected earnings of $0.28 per share for the second quarter. Analysts’ estimates typically exclude special items. Applied Materials Inc (NASDAQ:AMAT)’ second-quarter revenues rose 19 percent to $2.35 billion from $1.97 billion a year earlier. Analysts had a consensus revenues estimate of $2.35 billion for the quarter. Applied Materials, Inc. (NASDAQ:AMAT) stock performance was 8.13% in last session and finished the day at $20.21. Traded volume was 38.23million shares in the last session and the average volume of the stock remained 14.25million shares. The beta of the stock remained 1.60. Applied Materials, Inc. (NASDAQ:AMAT) insider ownership is 0.60%.