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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The latest in products within the biophotonics industry. (4x per year)

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Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

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

Glenstar Minerals Inc (CSE:GSTR)

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Historical Prices

Date Open High Low Close Volume Change (%)
Sep 30, 2025 0.5900 0.5900 0.5200 0.5400 176,511 -0.07(-11.48%)
Sep 29, 2025 0.6100 0.6200 0.6000 0.6100 257,500 +0.00(+0.00%)
Sep 26, 2025 0.6100 0.6100 0.6000 0.6100 41,106 +0.00(+0.00%)
Sep 25, 2025 0.6200 0.6200 0.5900 0.6100 149,206 +0.00(+0.00%)
Sep 24, 2025 0.6200 0.6400 0.5900 0.6100 428,730 -0.01(-1.61%)
Sep 23, 2025 0.6100 0.6300 0.6100 0.6200 288,744 +0.01(+1.64%)
Sep 22, 2025 0.5800 0.6100 0.5800 0.6100 460,488 +0.03(+5.17%)
Sep 19, 2025 0.5800 0.5800 0.5500 0.5800 213,000 +0.02(+3.57%)
Sep 18, 2025 0.5400 0.5800 0.5200 0.5600 261,510 +0.04(+7.69%)
Sep 17, 2025 0.5500 0.5800 0.5200 0.5200 112,500 -0.03(-5.45%)
Sep 16, 2025 0.5800 0.5800 0.5400 0.5500 51,107 -0.01(-1.79%)
Sep 15, 2025 0.5900 0.6200 0.5300 0.5600 201,114 -0.10(-15.15%)
Sep 12, 2025 0.5400 0.6600 0.5400 0.6600 243,225 +0.14(+26.92%)
Sep 11, 2025 0.4600 0.5300 0.4100 0.5200 168,662 +0.06(+13.04%)
Sep 10, 2025 0.4600 0.5200 0.4500 0.4600 70,000 -0.02(-4.17%)
Sep 09, 2025 0.4750 0.4800 0.4500 0.4800 64,501 -0.02(-3.03%)
Sep 08, 2025 0.5200 0.5200 0.4850 0.4950 149,340 -0.03(-4.81%)
Sep 05, 2025 0.6200 0.6300 0.5100 0.5200 384,575 -0.11(-17.46%)
Sep 04, 2025 0.6400 0.6500 0.6300 0.6300 10,590 -0.02(-3.08%)
Sep 03, 2025 0.6600 0.6700 0.6400 0.6500 234,278 -0.02(-2.99%)
Sep 02, 2025 0.6400 0.6700 0.6200 0.6700 305,100 +0.05(+8.06%)
Aug 29, 2025 0.6200 0 +0.01(+1.64%)
Aug 28, 2025 0.5200 0.6100 0.4700 0.6100 246,628 +0.07(+12.96%)
Aug 27, 2025 0.6200 0.6200 0.4900 0.5400 459,961 -0.08(-12.90%)
Aug 26, 2025 0.6900 0.6900 0.6200 0.6200 298,956 -0.08(-11.43%)
Aug 25, 2025 0.7300 0.7400 0.6900 0.7000 394,523 -0.04(-5.41%)
Aug 22, 2025 0.6600 0.7400 0.6500 0.7400 448,785 +0.05(+7.25%)
Aug 21, 2025 0.7500 0.7800 0.6700 0.6900 418,647 -0.10(-12.66%)
Aug 20, 2025 0.7000 0.7900 0.7000 0.7900 511,651 +0.09(+12.86%)
Aug 19, 2025 0.8000 0.9000 0.6400 0.7000 880,353 -0.25(-26.32%)
Aug 18, 2025 1.000 1.010 0.8800 0.9500 1,534,953 +0.10(+11.76%)
Aug 15, 2025 0.7700 0.8500 0.7700 0.8500 1,328,205 +0.12(+16.44%)
Aug 14, 2025 0.6500 0.7300 0.6500 0.7300 639,190 +0.10(+15.87%)
Aug 13, 2025 0.6500 0.6600 0.6200 0.6300 677,598 -0.01(-1.56%)
Aug 12, 2025 0.6100 0.6400 0.6000 0.6400 562,291 +0.03(+4.92%)
Aug 11, 2025 0.5700 0.6400 0.5700 0.6100 904,500 +0.04(+7.02%)
Aug 08, 2025 0.5600 0.5700 0.5600 0.5700 261,750 +0.02(+3.64%)
Aug 07, 2025 0.5700 0.5700 0.5400 0.5500 192,365 -0.02(-3.51%)
Aug 06, 2025 0.5600 0.5700 0.5500 0.5700 315,178 +0.01(+1.79%)
Aug 05, 2025 0.5400 0.5700 0.5300 0.5600 979,049 +0.10(+20.43%)
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