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.

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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

Integral Ad Science Holding Corp. - Common Stock (NQ:IAS)

10.21 +0.04 (+0.34%)
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Historical Prices

Date Open High Low Close Volume Change (%)
Sep 25, 2025 10.19 10.19 10.16 10.17 16,138,391 -0.02(-0.20%)
Sep 24, 2025 10.18 10.20 10.17 10.19 56,994,416 +1.73(+20.45%)
Sep 23, 2025 8.490 8.557 8.390 8.460 1,112,185 +0.01(+0.12%)
Sep 22, 2025 8.530 8.595 8.385 8.450 982,209 -0.08(-0.94%)
Sep 19, 2025 8.630 8.645 8.520 8.530 1,697,145 -0.11(-1.27%)
Sep 18, 2025 8.440 8.665 8.390 8.640 1,056,890 +0.25(+2.92%)
Sep 17, 2025 8.340 8.540 8.335 8.395 1,264,664 +0.04(+0.42%)
Sep 16, 2025 8.340 8.415 8.200 8.360 1,257,642 +0.02(+0.24%)
Sep 15, 2025 8.420 8.465 8.300 8.340 1,237,309 -0.06(-0.71%)
Sep 12, 2025 8.660 8.690 8.360 8.400 836,310 -0.29(-3.34%)
Sep 11, 2025 8.500 8.730 8.460 8.690 1,164,200 +0.23(+2.72%)
Sep 10, 2025 8.550 8.800 8.375 8.460 1,313,903 -0.09(-1.05%)
Sep 09, 2025 8.800 8.800 8.461 8.550 765,964 -0.26(-2.95%)
Sep 08, 2025 8.750 8.855 8.655 8.810 904,757 +0.09(+1.03%)
Sep 05, 2025 8.780 8.935 8.680 8.720 916,405 -0.02(-0.23%)
Sep 04, 2025 8.870 8.880 8.615 8.740 1,088,308 -0.16(-1.80%)
Sep 03, 2025 8.950 9.090 8.880 8.900 1,018,594 -0.06(-0.67%)
Sep 02, 2025 8.800 9.030 8.800 8.960 1,289,540 -0.03(-0.33%)
Aug 29, 2025 9.110 9.140 8.905 8.990 765,350 -0.15(-1.64%)
Aug 28, 2025 9.040 9.191 9.035 9.140 785,138 +0.10(+1.11%)
Aug 27, 2025 8.810 9.060 8.810 9.040 621,405 +0.21(+2.38%)
Aug 26, 2025 8.990 9.030 8.815 8.830 570,026 -0.16(-1.78%)
Aug 25, 2025 9.190 9.220 8.980 8.990 696,887 -0.26(-2.81%)
Aug 22, 2025 8.960 9.300 8.865 9.250 909,707 +0.34(+3.82%)
Aug 21, 2025 8.660 8.935 8.585 8.910 508,054 +0.20(+2.30%)
Aug 20, 2025 8.940 9.000 8.610 8.710 595,434 -0.26(-2.90%)
Aug 19, 2025 9.260 9.275 8.930 8.970 659,434 -0.33(-3.55%)
Aug 18, 2025 9.050 9.370 9.050 9.300 604,459 +0.25(+2.76%)
Aug 15, 2025 9.040 9.300 9.030 9.050 719,987 +0.02(+0.22%)
Aug 14, 2025 8.950 9.070 8.900 9.030 764,859 +0.01(+0.11%)
Aug 13, 2025 8.910 9.025 8.780 9.020 1,003,675 +0.13(+1.46%)
Aug 12, 2025 8.940 8.960 8.610 8.890 1,330,343 -0.03(-0.34%)
Aug 11, 2025 9.000 9.125 8.794 8.920 1,213,583 -0.06(-0.67%)
Aug 08, 2025 8.250 9.030 8.225 8.980 2,434,953 +1.02(+12.81%)
Aug 07, 2025 8.130 8.170 7.745 7.960 1,136,188 -0.11(-1.36%)
Aug 06, 2025 8.110 8.217 8.045 8.070 560,328 +0.02(+0.25%)
Aug 05, 2025 8.110 8.110 7.865 8.050 787,286 -0.06(-0.74%)
Aug 04, 2025 7.920 8.120 7.920 8.110 636,752 +0.25(+3.18%)
Aug 01, 2025 8.140 8.140 7.765 7.860 1,098,298 -0.34(-4.15%)
Jul 31, 2025 8.130 8.225 8.060 8.200 815,663 +0.07(+0.86%)
Jul 30, 2025 8.170 8.260 8.070 8.130 1,007,446 +0.03(+0.37%)
Jul 29, 2025 8.520 8.540 8.100 8.100 757,780 -0.42(-4.87%)
Jul 28, 2025 8.480 8.670 8.475 8.515 627,872 +0.04(+0.53%)
Jul 25, 2025 8.350 8.485 8.245 8.470 622,966 +0.16(+1.93%)
Jul 24, 2025 8.410 8.430 8.300 8.310 560,371 -0.07(-0.84%)
Jul 23, 2025 8.470 8.470 8.295 8.380 773,186 -0.05(-0.59%)
Jul 22, 2025 8.550 8.585 8.410 8.430 766,240 -0.08(-0.94%)
Jul 21, 2025 8.560 8.680 8.460 8.510 935,553 +0.24(+2.90%)
Jul 18, 2025 8.390 8.430 8.240 8.270 700,216 +0.00(+0.00%)
Jul 17, 2025 8.070 8.345 8.070 8.270 858,507 +0.23(+2.86%)
Jul 16, 2025 7.920 8.060 7.905 8.040 541,717 +0.14(+1.77%)
Jul 15, 2025 8.030 8.105 7.890 7.900 733,730 -0.09(-1.13%)
Jul 14, 2025 7.860 8.020 7.840 7.990 794,788 +0.15(+1.91%)
Jul 11, 2025 8.170 8.185 7.830 7.840 693,724 -0.39(-4.74%)
Jul 10, 2025 8.300 8.355 8.200 8.230 525,285 -0.07(-0.84%)
Jul 09, 2025 8.280 8.485 8.255 8.300 771,519 +0.03(+0.36%)
Jul 08, 2025 8.440 8.460 8.200 8.270 903,390 -0.11(-1.31%)
Jul 07, 2025 8.440 8.490 8.330 8.380 789,438 -0.15(-1.76%)
Jul 03, 2025 8.480 8.580 8.410 8.530 303,281 +0.12(+1.43%)
Jul 02, 2025 8.400 8.480 8.320 8.410 552,383 +0.01(+0.12%)
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