OSI Systems (NASDAQ:OSIS – Get Free Report) announced its quarterly earnings results on Thursday. OSI Systems Trading Down 0.6%NASDAQ:OSIS traded down $1.65 during mid-day trading on Thursday, hitting $269.74. OSI Systems has a fifty-two week low of $153.40 and a fifty-two week high of $294.93. Weiss Ratings reaffirmed a “buy (b)” rating on shares of OSI Systems in a research report on Thursday, January 22nd. Featured StoriesReceive News & Ratings for OSI Systems Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for OSI Systems and related companies with MarketBeat.com's FREE daily email newsletter.