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

Fold Holdings, Inc. - Class A Common Stock (NQ:FLD)

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Historical Prices

Date Open High Low Close Volume Change (%)
Oct 07, 2025 4.120 4.150 3.850 3.900 361,742 -0.24(-5.80%)
Oct 06, 2025 4.120 4.200 3.970 4.140 435,127 +0.02(+0.49%)
Oct 03, 2025 3.960 4.200 3.900 4.120 473,102 +0.17(+4.30%)
Oct 02, 2025 3.800 4.240 3.800 3.950 969,327 +0.17(+4.50%)
Oct 01, 2025 3.830 3.940 3.770 3.780 284,331 -0.08(-2.07%)
Sep 30, 2025 3.620 3.939 3.560 3.860 359,036 +0.21(+5.75%)
Sep 29, 2025 3.730 4.060 3.640 3.650 936,412 -0.03(-0.82%)
Sep 26, 2025 3.490 3.780 3.490 3.680 504,303 +0.10(+2.79%)
Sep 25, 2025 3.560 3.850 3.520 3.580 851,204 -0.13(-3.50%)
Sep 24, 2025 3.350 3.780 3.260 3.710 2,033,114 +0.45(+13.80%)
Sep 23, 2025 4.690 4.695 3.220 3.260 19,204,258 -0.62(-15.98%)
Sep 22, 2025 4.530 4.550 3.600 3.880 3,840,758 -0.65(-14.35%)
Sep 19, 2025 3.420 4.590 3.320 4.530 4,877,545 +1.13(+33.24%)
Sep 18, 2025 3.230 3.440 3.175 3.400 670,697 +0.19(+5.92%)
Sep 17, 2025 3.070 3.260 3.052 3.210 794,936 +0.13(+4.22%)
Sep 16, 2025 3.280 3.320 3.070 3.080 417,008 -0.22(-6.67%)
Sep 15, 2025 3.290 3.364 3.250 3.300 137,800 +0.01(+0.30%)
Sep 12, 2025 3.370 3.390 3.285 3.290 147,429 -0.10(-2.95%)
Sep 11, 2025 3.420 3.470 3.330 3.390 321,246 -0.05(-1.45%)
Sep 10, 2025 3.410 3.550 3.360 3.440 313,636 +0.02(+0.58%)
Sep 09, 2025 3.320 3.490 3.320 3.420 284,808 +0.09(+2.70%)
Sep 08, 2025 3.300 3.500 3.150 3.330 465,400 +0.07(+2.15%)
Sep 05, 2025 3.590 3.640 3.120 3.260 607,345 -0.33(-9.19%)
Sep 04, 2025 3.400 3.620 3.400 3.590 337,884 +0.18(+5.28%)
Sep 03, 2025 3.520 3.570 3.390 3.410 379,290 -0.08(-2.29%)
Sep 02, 2025 3.550 3.670 3.460 3.490 467,926 -0.09(-2.51%)
Aug 29, 2025 3.610 3.770 3.540 3.580 370,318 -0.06(-1.65%)
Aug 28, 2025 3.730 3.830 3.600 3.640 467,643 -0.09(-2.54%)
Aug 27, 2025 3.660 3.950 3.580 3.735 375,504 +0.15(+4.04%)
Aug 26, 2025 3.490 3.702 3.360 3.590 492,096 +0.10(+2.87%)
Aug 25, 2025 3.790 3.800 3.480 3.490 472,495 -0.27(-7.18%)
Aug 22, 2025 3.870 3.900 3.730 3.760 459,374 -0.01(-0.27%)
Aug 21, 2025 3.720 3.920 3.700 3.770 339,609 +0.06(+1.62%)
Aug 20, 2025 3.900 4.000 3.684 3.710 361,968 -0.16(-4.13%)
Aug 19, 2025 3.670 4.010 3.630 3.870 363,223 +0.19(+5.16%)
Aug 18, 2025 4.050 4.050 3.640 3.680 316,438 -0.29(-7.30%)
Aug 15, 2025 4.150 4.150 3.910 3.970 271,716 -0.15(-3.64%)
Aug 14, 2025 4.270 4.280 4.110 4.120 73,588 -0.16(-3.74%)
Aug 13, 2025 4.170 4.500 4.120 4.280 273,660 +0.17(+4.14%)
Aug 12, 2025 4.150 4.170 4.040 4.110 115,072 +0.09(+2.24%)
Aug 11, 2025 4.070 4.170 3.975 4.020 141,607 +0.01(+0.25%)
Aug 08, 2025 4.010 4.050 3.980 4.010 76,378 -0.01(-0.25%)
Aug 07, 2025 4.260 4.260 3.970 4.020 70,034 +0.02(+0.50%)
Aug 06, 2025 4.080 4.100 3.980 4.000 105,023 -0.09(-2.20%)
Aug 05, 2025 4.300 4.300 4.060 4.090 99,903 -0.15(-3.54%)
Aug 04, 2025 4.200 4.290 4.160 4.240 71,059 -0.03(-0.70%)
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