OSI Systems (OSIS) Stock Chart & Stock Price History $230.05 +0.93 (+0.41%) Closing price 08/29/2025 04:00 PM EasternExtended Trading$229.60 -0.45 (-0.20%) As of 08/29/2025 04:20 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock OSI Systems Stock Price Performance The OSI Systems (OSIS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 53.50%, with a year-to-date return of 37.40%. In the past month, the stock has increased 4.77%, reflecting recent market activity. As of the latest close, OSI Systems traded at $230.05 with a market cap of $3.87 billion and volume of 122,191 shares. Five years ago, the stock traded at $78.60, representing a 192.68% increase over that period. At the time, it had a market cap of $1.42 billion and a volume of 185,528 shares. Receive OSIS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for OSI Systems and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance-0.14%1 Month Performance+4.77%3 Month Performance+5.53%Year-To-Date Performance+37.40%1 Year Performance+53.50%5 Year Performance+192.68% OSIS Stock Chart for Monday, September, 1, 2025 OSIS Chart by TradingView OSI Systems Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/29/2025$229.12$230.05+0.41%$231.44$226.93122,191 shs$3.87 billion08/28/2025$230.38$229.12-0.55%$232.38$225.54187,717 shs$3.86 billion08/27/2025$230.78$230.38-0.17%$234.28$230.00198,875 shs$3.87 billion08/26/2025$225.19$230.78+2.48%$232.15$225.27219,682 shs$3.87 billion08/25/2025$228.70$225.19-1.53%$228.99$224.16170,074 shs$3.78 billion08/22/2025$217.89$228.70+4.96%$230.37$218.77324,970 shs$3.84 billion08/21/2025$223.39$217.89-2.46%$228.65$204.00770,549 shs$3.66 billion08/20/2025$226.91$223.39-1.55%$229.00$219.83530,107 shs$3.75 billion08/19/2025$231.22$226.91-1.86%$232.94$226.21134,992 shs$3.81 billion08/18/2025$234.27$231.22-1.30%$236.58$230.99220,048 shs$3.88 billion Get the Latest News and Ratings for OSIS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for OSI Systems and its competitors with MarketBeat's FREE daily newsletter. 08/15/2025$233.49$234.27+0.33%$234.69$232.61135,965 shs$3.93 billion08/14/2025$236.05$233.49-1.08%$236.27$231.11133,695 shs$3.92 billion08/13/2025$233.18$236.05+1.23%$239.13$232.68141,007 shs$3.96 billion08/12/2025$224.22$233.18+4.00%$233.65$224.60133,121 shs$3.92 billion08/11/2025$225.94$224.22-0.76%$227.69$223.75283,443 shs$3.76 billion08/08/2025$223.93$225.94+0.90%$228.95$222.33141,174 shs$3.79 billion08/07/2025$221.05$223.93+1.30%$223.93$219.79113,418 shs$3.76 billion08/06/2025$219.64$221.05+0.64%$222.72$218.7999,429 shs$3.71 billion08/05/2025$221.69$219.64-0.92%$221.70$217.99162,685 shs$3.69 billion08/04/2025$219.57$221.69+0.97%$224.12$217.56155,993 shs$3.72 billion08/01/2025$221.01$219.57-0.65%$220.46$215.03158,793 shs$3.69 billion07/31/2025$223.54$221.01-1.13%$224.13$220.05118,271 shs$3.71 billion Related Companies Coherent Stock Chart Cognex Stock Chart Itron Stock Chart Badger Meter Stock Chart Daktronics Stock Chart Mesa Laboratories Stock Chart Vishay Precision Group Stock Chart nVent Electric Stock Chart Fabrinet Stock Chart Universal Display Stock Chart Receive OSIS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for OSI Systems and its competitors with MarketBeat's FREE daily newsletter. 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