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

QuantumScape Corporation Class A Common Stock (NY:QS)

14.99 -0.34 (-2.22%)
Official Closing Price Updated: 7:00 PM EDT, Oct 9, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Oct 09, 2025 15.40 16.33 14.98 14.99 68,549,200 -0.34(-2.22%)
Oct 08, 2025 16.24 14.82 15.33 84,429,792 +0.00(+0.00%)
Oct 07, 2025 16.00 16.31 14.97 15.33 57,942,152 -0.39(-2.48%)
Oct 06, 2025 16.03 16.68 15.64 15.72 50,369,424 -0.20(-1.26%)
Oct 03, 2025 14.64 16.49 14.24 15.92 76,384,472 +1.62(+11.33%)
Oct 02, 2025 14.54 15.24 14.08 14.30 58,166,236 -0.29(-1.99%)
Oct 01, 2025 12.30 14.85 12.08 14.59 87,657,952 +2.27(+18.43%)
Sep 30, 2025 13.00 13.62 12.05 12.32 50,793,924 -0.06(-0.48%)
Sep 29, 2025 13.13 13.41 12.13 12.38 37,072,296 -0.28(-2.21%)
Sep 26, 2025 12.59 12.93 12.09 12.66 29,252,312 +0.16(+1.28%)
Sep 25, 2025 11.97 12.85 11.49 12.50 39,902,192 +0.01(+0.08%)
Sep 24, 2025 13.79 14.02 12.34 12.49 43,696,912 -1.04(-7.69%)
Sep 23, 2025 13.43 14.17 13.05 13.53 43,502,488 +0.09(+0.67%)
Sep 22, 2025 13.07 14.10 12.63 13.44 52,209,828 +0.02(+0.15%)
Sep 19, 2025 12.18 13.44 11.94 13.42 74,329,816 +1.29(+10.63%)
Sep 18, 2025 10.38 12.27 10.22 12.13 65,936,672 +1.87(+18.23%)
Sep 17, 2025 9.910 10.64 9.854 10.26 41,633,320 +0.11(+1.08%)
Sep 16, 2025 10.30 10.72 9.880 10.15 41,347,672 -0.21(-2.03%)
Sep 15, 2025 10.05 10.53 9.410 10.36 40,992,380 +0.41(+4.12%)
Sep 12, 2025 8.880 9.960 8.715 9.950 39,085,024 +1.10(+12.43%)
Sep 11, 2025 8.340 9.290 8.290 8.850 37,073,792 +0.50(+5.99%)
Sep 10, 2025 8.600 8.610 8.210 8.350 22,335,960 -0.18(-2.11%)
Sep 09, 2025 9.630 9.650 8.300 8.530 52,617,560 -0.96(-10.12%)
Sep 08, 2025 10.06 10.68 9.260 9.490 102,299,456 +1.65(+21.05%)
Sep 05, 2025 7.810 7.944 7.640 7.840 9,675,415 +0.19(+2.48%)
Sep 04, 2025 7.660 7.697 7.400 7.650 12,587,936 -0.13(-1.67%)
Sep 03, 2025 7.800 8.150 7.695 7.780 12,253,146 +0.05(+0.65%)
Sep 02, 2025 7.770 7.840 7.550 7.730 11,384,379 -0.20(-2.52%)
Aug 29, 2025 8.190 8.190 7.750 7.930 12,270,613 -0.17(-2.10%)
Aug 28, 2025 8.130 8.230 8.022 8.100 8,614,494 +0.06(+0.75%)
Aug 27, 2025 8.170 8.315 7.995 8.040 10,733,844 -0.29(-3.48%)
Aug 26, 2025 8.110 8.560 8.110 8.330 17,271,696 +0.28(+3.48%)
Aug 25, 2025 8.050 8.220 7.800 8.050 12,481,426 -0.11(-1.35%)
Aug 22, 2025 7.860 8.230 7.780 8.160 14,821,040 +0.29(+3.68%)
Aug 21, 2025 7.890 8.010 7.755 7.870 10,885,983 -0.04(-0.51%)
Aug 20, 2025 7.850 7.960 7.650 7.910 13,666,894 +0.00(+0.00%)
Aug 19, 2025 8.800 8.850 7.830 7.910 24,441,856 -0.89(-10.11%)
Aug 18, 2025 8.990 9.110 8.550 8.800 16,794,344 -0.23(-2.55%)
Aug 15, 2025 9.160 9.260 8.800 9.030 14,508,903 -0.06(-0.66%)
Aug 14, 2025 9.260 9.690 8.850 9.090 27,684,820 -0.35(-3.71%)
Aug 13, 2025 9.430 9.700 9.140 9.440 21,257,872 +0.09(+0.96%)
Aug 12, 2025 9.000 9.400 8.960 9.350 25,182,616 +0.27(+2.97%)
Aug 11, 2025 8.870 9.260 8.816 9.080 23,727,138 +0.32(+3.65%)
Aug 08, 2025 9.490 9.600 8.710 8.760 34,527,992 -0.48(-5.19%)
Aug 07, 2025 8.310 9.260 8.310 9.240 38,741,536 +0.96(+11.59%)
Aug 06, 2025 8.460 8.745 8.205 8.280 28,489,308 -0.41(-4.72%)
Aug 05, 2025 9.000 9.110 8.430 8.690 54,174,092 +0.39(+4.70%)
Aug 04, 2025 8.370 8.478 8.115 8.300 23,143,696 +0.04(+0.48%)
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