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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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

Defiance Daily Target 2x Short IONQ ETF (NQ:IONZ)

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Historical Prices

Date Open High Low Close Volume Change (%)
Oct 15, 2025 2.420 3.019 2.400 2.880 70,645,224 +0.31(+12.06%)
Oct 14, 2025 2.460 2.660 2.370 2.570 73,341,792 +0.27(+11.74%)
Oct 13, 2025 3.080 3.220 2.080 2.300 138,135,872 -1.11(-32.55%)
Oct 10, 2025 2.960 3.420 2.930 3.410 128,781,752 +0.50(+17.18%)
Oct 09, 2025 3.150 3.260 2.880 2.910 78,615,000 -0.29(-9.06%)
Oct 08, 2025 2.880 3.330 2.670 3.200 104,889,512 +0.35(+12.28%)
Oct 07, 2025 2.750 3.130 2.600 2.850 133,782,736 -0.04(-1.38%)
Oct 06, 2025 3.535 3.550 2.850 2.890 92,753,536 -0.51(-15.00%)
Oct 03, 2025 3.720 3.950 3.380 3.400 77,817,056 -0.46(-11.92%)
Oct 02, 2025 4.590 4.629 3.850 3.860 60,222,472 -0.98(-20.25%)
Oct 01, 2025 5.130 5.330 4.555 4.840 47,974,460 -0.28(-5.47%)
Sep 30, 2025 4.830 5.255 4.610 5.120 43,010,004 +0.39(+8.25%)
Sep 29, 2025 4.170 4.860 4.140 4.730 40,739,720 +0.38(+8.74%)
Sep 26, 2025 4.200 4.580 3.990 4.350 71,433,488 +0.24(+5.84%)
Sep 25, 2025 3.940 4.360 3.830 4.110 87,320,904 +0.44(+11.99%)
Sep 24, 2025 3.560 3.950 3.490 3.670 62,956,600 +0.10(+2.80%)
Sep 23, 2025 3.690 3.960 3.471 3.570 62,196,228 -0.34(-8.70%)
Sep 22, 2025 4.380 4.580 3.780 3.910 48,951,072 -0.18(-4.40%)
Sep 19, 2025 4.730 4.730 3.980 4.090 48,125,300 -0.50(-10.89%)
Sep 18, 2025 4.340 4.800 4.080 4.590 33,394,848 -0.21(-4.37%)
Sep 17, 2025 5.190 5.550 4.640 4.800 28,026,800 -0.55(-10.28%)
Sep 16, 2025 6.050 6.390 5.241 5.350 10,805,526 -0.65(-10.83%)
Sep 15, 2025 6.520 6.760 5.810 6.000 13,178,678 -0.92(-13.29%)
Sep 12, 2025 10.67 10.68 6.680 6.920 22,691,652 -3.92(-36.16%)
Sep 11, 2025 12.43 12.87 10.72 10.84 2,015,297 -1.80(-14.24%)
Sep 10, 2025 12.38 12.79 11.87 12.64 919,312 +0.03(+0.24%)
Sep 09, 2025 14.37 14.68 12.38 12.61 1,012,181 -2.10(-14.28%)
Sep 08, 2025 14.00 15.10 13.68 14.71 421,780 +0.53(+3.74%)
Sep 05, 2025 13.70 15.01 13.57 14.18 951,275 +0.22(+1.58%)
Sep 04, 2025 14.65 14.92 13.32 13.96 1,231,121 -0.81(-5.48%)
Sep 03, 2025 13.71 15.02 13.44 14.77 765,061 +1.23(+9.08%)
Sep 02, 2025 14.80 15.28 13.50 13.54 1,130,401 -0.11(-0.81%)
Aug 29, 2025 13.82 14.23 13.40 13.65 879,388 +0.24(+1.79%)
Aug 28, 2025 14.50 14.51 13.11 13.41 1,124,037 -1.27(-8.65%)
Aug 27, 2025 15.06 15.16 13.79 14.68 663,333 -0.49(-3.21%)
Aug 26, 2025 16.88 17.02 15.10 15.17 594,891 -1.85(-10.89%)
Aug 25, 2025 16.28 17.15 16.14 17.02 284,364 +0.91(+5.65%)
Aug 22, 2025 18.95 19.23 16.02 16.11 518,334 -2.70(-14.37%)
Aug 21, 2025 18.76 19.50 18.58 18.81 382,937 -0.37(-1.91%)
Aug 20, 2025 18.41 21.25 18.41 19.18 1,040,732 +0.04(+0.21%)
Aug 19, 2025 16.84 19.34 16.63 19.14 626,586 +2.84(+17.44%)
Aug 18, 2025 16.57 17.33 16.20 16.30 424,492 -0.06(-0.38%)
Aug 15, 2025 15.91 17.00 15.91 16.36 472,718 +0.61(+3.86%)
Aug 14, 2025 16.26 17.12 15.72 15.75 509,500 +0.10(+0.63%)
Aug 13, 2025 14.39 15.97 14.11 15.65 487,285 +1.20(+8.32%)
Aug 12, 2025 13.31 14.67 13.30 14.45 512,813 +1.09(+8.16%)
Aug 11, 2025 15.78 15.88 11.95 13.36 2,218,019 -2.26(-14.47%)
Aug 08, 2025 16.41 16.84 15.21 15.62 1,361,093 -1.13(-6.77%)
Aug 07, 2025 17.93 18.15 15.91 16.75 928,411 +0.58(+3.62%)
Aug 06, 2025 14.65 16.50 14.65 16.17 809,095 +0.60(+3.86%)
Aug 05, 2025 16.90 17.20 15.27 15.57 923,041 -1.89(-10.83%)
Aug 04, 2025 18.26 18.93 16.68 17.46 297,232 -1.77(-9.20%)
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