Monday's NASDAQ Winners: SIGA, ARNA, VRNM, GRVY

New York, NY - March 27, 2012 - www.InvestorIdeas.com, a global investor research portal for independent investors, reports on top percentage gainers on the NASDAQ for Monday March 26th. The Nasdaq Composite surged 54.65 (1.78%) to end at 3,122.57.

SIGA Technologies, Inc. (NASDAQ: SIGA) shares soared 29.26% to close at $3.49 without any official news. The stock has been showing strong support at $2 and has jumped over 38% so far this year. Yesterday's volume was impressive with more than 2.95 million shares traded, compared to its average volume of 355K shares.

Arena Pharmaceuticals, Inc. (NASDAQ: ARNA) announced that the European Medicines Agency (EMA) has accepted the filing of a Marketing Authorization Application (MAA) for lorcaserin, used for weight control, in patients who are obese or overweight and have at least one weight-related co-morbid condition. Shares of the company gained 24.90% to $3.01 in the last trading session.

Also, the U.S. Food and Drug Administration advisory committee will meet May 10 to discuss the company's resubmitted application for lorcaserin.

Verenium Corporation (NASDAQ: VRNM) moved 19.81% to close at $3.69 after it closed a transaction with DSM Food Specialties B.V., in which Verenium has sold to DSM its Oilseed Processing business, licensed certain enzymes for use in the food and beverage markets, and will provide access to new gene libraries to be developed by Verenium. Verenium will receive $37 million in total consideration, including transaction and related expenses, on March 26, 2012.

Gravity Co., LTD. (NASDAQ: GRVY) rose 15.99% and closed at $3.41after the company announced that Ragnarok Online II was commercially launched in Korea on March 26, 2012. After launching Ragnarok Online II in Korea, the company intends to release the game in a couple of overseas markets in 2012 as well.

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