MARKET PULSE-BlackBerry, Intermune, Tesla, Vivus, Riverbed, Tekmira

Tue Feb 25, 2014 1:41pm EST
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(For more market insights, including options activity, click on ; for the Day Ahead newsletter; for the Morning News Call newsletter, U.S. stocks rose on Tuesday, with the S&P 500 moving within points of record levels, as a pair of retail stocks rallied following strong results. The Dow Jones industrial average was up 0.07 percent at 16,218.83, the S&P 500 was down 0.01 percent at 1,847.44 and the Nasdaq Composite was up 0.06 percent at 4,295.421.

** LINKEDIN CORP, $210.39, +5.41 pct

The professional social networking website launched a Chinese language version of its website on Monday, a move that could jumpstart its expansion into the world's largest Internet market by users even as the company acknowledged it will have to police what some of them say on its website.

** BLACKBERRY LTD, $10.66, +8.44 pct

The handset maker unveiled a cheaper touchscreen smartphone and a "classic" model with a keyboard as it tries to stem losses and win back a once devoted following by security-conscious business and government users.

BlackBerry also plans to launch a new tool for business and government customers to manage mobile devices on their networks, part of a drive by the smartphone pioneer to focus on its profitable enterprise or services business.