Twitter Inc (NYSE:TWTR) could not cope with Ellen DeGeneres’s A-lister packed selfie that broke retweeting records and disrupted the social media. On last trading day Twitter Inc (NYSE:TWTR) ended up -1.54% lower to close at $54.91 while trading in the range of $54.13 – $56.00. Its return on assets (ROA) is -41.20% while return on investment (ROI) is -20.10%. Twitter Inc (NYSE:TWTR) monthly performance is -7.64%.

Clearsign Combustion Corporation (NASDAQ:CLIR) designs and develops technologies that aim to improve key performance characteristics of combustion systems including energy efficiency, emissions control, fuel flexibility and overall cost effectiveness. CLEARSIGN COMBUSTION CORP (NASDAQ:CLIR) in last trading activity ended up at $9.35 with day range of $8.75 – $9.78. Company weekly performance is 3.66% while its quarterly performance stands at 44.07%. CLEARSIGN COMBUSTION CORP (NASDAQ:CLIR) is -32.59% away from its 52 week high.

Compugen Ltd. (NASDAQ:CGEN) announced that it has priced an underwritten public offering of 6,000,000 ordinary shares at a price to the public of $10.50 per share. Gross proceeds to Compugen are expected to be $63 million, before deducting the underwriting discounts and commissions and estimated offering expenses payable by Compugen. Compugen Ltd. (USA) (NASDAQ:CGEN) belongs to Healthcare sector with market capitalization of 451.59 M and has 10.04% insider ownership. In last trading activity company’s stock closed at $11.34 while opening price was $11.40.

Equities researchers at Mizuho lifted their target price on shares of McKesson Corp. (NYSE:MCK) from $194.00 to $199.00 in a research report issued on Monday, ARN reports. The firm currently has a “buy” rating on the stock. On Friday shares of McKesson Corporation (NYSE:MCK) opened at $174.75 and closed at $177.05. This year Company’s Earnings per Share (EPS) growth is 0.20% and next year’s estimated EPS growth is 30.46%. Analysts mean target price for McKesson Corporation (NYSE:MCK) is $199.50.