William Blair upgraded shares of STAAR Surgical Company (NASDAQ:STAA) from a market perform rating to an outperform rating in a research report released on Monday morning, TheFlyOnTheWall.com reports. STAAR Surgical Company (NASDAQ:STAA) stock performance was 5.97% in last session and finished the day at $18.64. Traded volume was 834.5K shares in the last session and the average volume of the stock remained 260.89K shares. The … Continue reading Small Cap Gainers: STAAR Surgical Company (NASDAQ:STAA), Retrophin (NASDAQ:RTRX), TASER International (NASDAQ:TASR)