Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

OSI Systems, Inc. - Common Stock (NQ:OSIS)

229.49 +0.38 (+0.17%)
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Historical Prices

Date Open High Low Close Volume Change (%)
Sep 08, 2025 233.75 235.49 226.00 229.11 155,106 -4.44(-1.90%)
Sep 05, 2025 235.71 238.16 231.40 233.55 106,835 -2.16(-0.92%)
Sep 04, 2025 233.58 236.93 232.08 235.71 113,747 +2.83(+1.22%)
Sep 03, 2025 231.51 235.00 228.91 232.88 176,266 +0.22(+0.09%)
Sep 02, 2025 226.14 233.24 226.08 232.66 118,974 +2.61(+1.13%)
Aug 29, 2025 228.80 231.44 226.93 230.05 122,191 +0.93(+0.41%)
Aug 28, 2025 230.98 232.38 225.53 229.12 187,717 -1.26(-0.55%)
Aug 27, 2025 230.81 234.28 230.00 230.38 198,875 -0.40(-0.17%)
Aug 26, 2025 225.27 232.15 225.27 230.78 219,882 +5.59(+2.48%)
Aug 25, 2025 228.99 228.99 224.16 225.19 170,076 -3.51(-1.53%)
Aug 22, 2025 221.26 230.37 218.77 228.70 324,970 +10.81(+4.96%)
Aug 21, 2025 220.18 228.65 204.00 217.89 779,549 -5.50(-2.46%)
Aug 20, 2025 226.79 229.00 219.83 223.39 530,160 -3.52(-1.55%)
Aug 19, 2025 231.61 232.94 226.21 226.91 134,992 -4.31(-1.86%)
Aug 18, 2025 234.07 236.58 230.99 231.22 220,048 -3.05(-1.30%)
Aug 15, 2025 234.32 234.69 232.61 234.27 135,965 +0.78(+0.33%)
Aug 14, 2025 232.61 236.27 231.11 233.49 133,701 -2.56(-1.08%)
Aug 13, 2025 235.30 239.13 232.68 236.05 141,007 +2.87(+1.23%)
Aug 12, 2025 225.73 233.65 224.60 233.18 133,121 +8.96(+4.00%)
Aug 11, 2025 226.09 227.69 223.75 224.22 283,443 -1.72(-0.76%)
Aug 08, 2025 225.79 228.95 222.33 225.94 141,174 +2.01(+0.90%)
Aug 07, 2025 222.79 223.93 219.79 223.93 113,418 +2.88(+1.30%)
Aug 06, 2025 220.56 222.72 218.78 221.05 99,429 +1.41(+0.64%)
Aug 05, 2025 221.15 221.69 217.99 219.64 162,685 -2.05(-0.92%)
Aug 04, 2025 221.12 224.12 217.56 221.69 155,993 +2.12(+0.97%)
Aug 01, 2025 216.64 220.46 215.03 219.57 158,793 -1.44(-0.65%)
Jul 31, 2025 222.15 224.13 220.05 221.01 118,271 -2.53(-1.13%)
Jul 30, 2025 226.09 230.48 222.00 223.54 139,567 -1.68(-0.75%)
Jul 29, 2025 226.12 227.87 223.74 225.22 78,029 +1.15(+0.51%)
Jul 28, 2025 225.17 226.25 220.37 224.07 126,325 -2.01(-0.89%)
Jul 25, 2025 225.30 229.70 224.91 226.08 101,423 +2.05(+0.92%)
Jul 24, 2025 224.44 226.91 223.62 224.03 110,532 -2.63(-1.16%)
Jul 23, 2025 218.90 227.53 217.50 226.66 147,055 +9.59(+4.42%)
Jul 22, 2025 215.10 217.71 210.02 217.07 145,620 +1.18(+0.55%)
Jul 21, 2025 212.66 221.01 211.54 215.89 143,570 +4.51(+2.14%)
Jul 18, 2025 216.25 216.25 209.30 211.38 129,566 -2.44(-1.14%)
Jul 17, 2025 212.00 216.02 205.87 213.82 148,656 +1.71(+0.81%)
Jul 16, 2025 209.98 214.16 207.05 212.11 144,825 +3.99(+1.92%)
Jul 15, 2025 213.63 214.25 206.93 208.12 159,295 -4.18(-1.97%)
Jul 14, 2025 211.29 214.81 209.54 212.30 286,679 -0.45(-0.21%)
Jul 11, 2025 228.86 228.86 212.39 212.75 289,692 -17.23(-7.49%)
Jul 10, 2025 236.92 240.44 229.93 229.98 360,601 -5.66(-2.40%)
Jul 09, 2025 234.56 236.76 226.62 235.64 222,839 +1.81(+0.77%)
Jul 08, 2025 231.41 235.00 231.41 233.83 202,827 +3.02(+1.31%)
Jul 07, 2025 231.38 233.58 229.10 230.81 168,151 -1.70(-0.73%)
Jul 03, 2025 229.75 233.94 224.50 232.51 70,187 +3.87(+1.69%)
Jul 02, 2025 226.49 230.30 225.53 228.64 208,391 +1.90(+0.84%)
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