OSI Systems, Inc. (OSIS:NASDAQ) closed at $197.00 on November 10, 2026, down 2.17% on the day. The stock trades 36.8% below its 52-week high of $311.72 and 5.6% above its 52-week low of $186.50. Over the past year, it lost 29.5%. OSI Systems, Inc. is part of the Technology sector (Semiconductors).
In 252 trading sessions since November 10, 2025, OSIS closed higher on 118 days (47%). Its best day was November 21, 2025 (+7.32%) and its worst was May 5, 2026 (-17.01%). The stock moved 10% or more in a single session 1 time.
OSI Systems, Inc., together with its subsidiaries, designs, manufactures, and sells electronic systems and components worldwide. The company's Security segment provides baggage and parcel inspection, cargo and vehicle inspection, hold baggage and people screening, radiation detection, and explosive and narcotics trace detection systems under the Rapiscan Systems name. This segment also offers site design, installation, training, and technical support services; and turnkey security screening solutions under the S2 name. Its Healthcare segment provides patient monitoring, diagnostic cardiology, anesthesia delivery and ventilation systems, defibrillators, and related supplies and accessories under the Spacelabs, Primedic, and Statcorp Medical names for use in critical care, emergency, and perioperative areas within hospitals, as well as physicians' offices, medical clinics, ambulatory surgery centers, and public facilities. The company's Optoelectronics and Manufacturing segment offers optoelectronic devices for the aerospace and defense, avionics, medical imaging and diagnostics, biochemistry analysis, pharmaceutical, nanotechnology, telecommunications, construction, and homeland sec...
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