4. Rosetta Genomics ( ROSG) Company Profile: Israel-based Rosetta Genomics is a microRNA genomics company, focused on developing bioinformatics tools for miRNA gene detection. Shares of Rosetta Genomics held around 25 cents for most of January before jumping close to 70 cents on Jan. 26, a day before the company announced debt financing of $1.75 million. Share Price: 44 cents (Jan. 27) 2012 Total Return: 144% Analyst Ratings: The last (and only) rating still on Rosetta Genomics came in November when Rodman & Renshaw maintained its "market perform" ranking. The firm, however, does not have a price target on the stock. TheStreet Ratings has a "sell" rating on Rosetta.