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.

Laser Focus World Membership

Never miss any articles, videos, podcasts, or webinars by signing up for membership access to Laser Focus World online. You can manage your preferences all in one place—and provide our editorial team with your valued feedback.

Magazine Subscription

Can you subscribe to receive our print issue for free? Yes, you sure can!

Newsletter Subscription

Laser Focus World newsletter subscription is free to qualified professionals:

The Daily Beam

Showcases the newest content from Laser Focus World, including photonics- and optics-based applications, components, research, and trends. (Daily)

Product Watch

The latest in products within the photonics industry. (9x per year)

Bio & Life Sciences Product Watch

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

Laser Processing Product Watch

The latest in products within the laser processing industry. (3x per year)

Get Published!

If you’d like to write an article for us, reach out with a short pitch to Sally Cole Johnson: [email protected]. We love to hear from you.

Photonics Hot List

Laser Focus World produces a video newscast that gives a peek into what’s happening in the world of photonics.

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

Cloudastructure, Inc. - Class A Common Stock (NQ:CSAI)

1.370 UNCHANGED
Streaming Delayed Price Updated: 4:00 PM EDT, Oct 13, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Oct 13, 2025 1.340 1.380 1.270 1.370 285,561 +0.09(+7.03%)
Oct 10, 2025 1.410 1.465 1.280 1.280 338,930 -0.12(-8.57%)
Oct 09, 2025 1.450 1.450 1.355 1.400 385,734 -0.04(-2.78%)
Oct 08, 2025 1.490 1.560 1.410 1.440 255,099 -0.07(-4.64%)
Oct 07, 2025 1.610 1.650 1.460 1.510 405,483 -0.08(-5.03%)
Oct 06, 2025 1.490 1.600 1.470 1.590 378,226 +0.13(+8.90%)
Oct 03, 2025 1.460 1.490 1.390 1.460 313,568 +0.03(+2.10%)
Oct 02, 2025 1.310 1.470 1.275 1.430 465,899 +0.12(+9.16%)
Oct 01, 2025 1.290 1.330 1.240 1.310 252,222 +0.05(+3.97%)
Sep 30, 2025 1.270 1.290 1.180 1.260 454,745 -0.03(-2.33%)
Sep 29, 2025 1.350 1.374 1.270 1.290 170,008 -0.07(-5.15%)
Sep 26, 2025 1.400 1.413 1.290 1.360 293,790 -0.01(-0.73%)
Sep 25, 2025 1.450 1.450 1.360 1.370 207,488 -0.08(-5.52%)
Sep 24, 2025 1.530 1.540 1.360 1.450 222,391 +0.03(+2.11%)
Sep 23, 2025 1.640 1.640 1.400 1.420 438,933 -0.18(-11.25%)
Sep 22, 2025 1.620 1.650 1.550 1.600 267,554 -0.02(-1.23%)
Sep 19, 2025 1.650 1.740 1.600 1.620 957,320 -0.03(-1.82%)
Sep 18, 2025 1.620 1.740 1.590 1.650 329,316 +0.08(+5.10%)
Sep 17, 2025 1.620 1.720 1.570 1.570 428,638 -0.07(-4.27%)
Sep 16, 2025 1.600 1.650 1.550 1.640 283,454 +0.07(+4.46%)
Sep 15, 2025 1.530 1.600 1.500 1.570 208,004 +0.06(+3.97%)
Sep 12, 2025 1.600 1.620 1.500 1.510 157,905 -0.08(-5.03%)
Sep 11, 2025 1.620 1.628 1.459 1.590 424,367 +0.00(+0.00%)
Sep 10, 2025 1.330 1.610 1.320 1.590 673,608 +0.26(+19.55%)
Sep 09, 2025 1.400 1.450 1.250 1.330 573,582 -0.04(-2.92%)
Sep 08, 2025 1.230 1.410 1.200 1.370 530,273 +0.18(+15.13%)
Sep 05, 2025 1.300 1.305 1.160 1.190 461,972 -0.09(-7.03%)
Sep 04, 2025 1.400 1.406 1.270 1.280 258,660 -0.11(-7.91%)
Sep 03, 2025 1.410 1.468 1.375 1.390 169,649 -0.05(-3.47%)
Sep 02, 2025 1.530 1.569 1.425 1.440 255,691 -0.13(-8.28%)
Aug 29, 2025 1.680 1.680 1.540 1.570 169,423 -0.08(-4.85%)
Aug 28, 2025 1.610 1.680 1.580 1.650 169,568 +0.05(+3.12%)
Aug 27, 2025 1.620 1.650 1.550 1.600 127,340 -0.01(-0.62%)
Aug 26, 2025 1.780 1.780 1.610 1.610 453,568 -0.19(-10.56%)
Aug 25, 2025 1.660 1.930 1.653 1.800 717,417 +0.22(+13.92%)
Aug 22, 2025 1.520 1.610 1.480 1.580 102,471 +0.05(+3.27%)
Aug 21, 2025 1.430 1.550 1.405 1.530 206,570 +0.09(+6.25%)
Aug 20, 2025 1.530 1.567 1.410 1.440 521,742 -0.12(-7.69%)
Aug 19, 2025 1.660 1.670 1.520 1.560 378,551 -0.09(-5.45%)
Aug 18, 2025 1.600 1.670 1.550 1.650 228,269 +0.04(+2.48%)
Aug 15, 2025 1.670 1.690 1.580 1.610 342,182 -0.07(-4.17%)
Aug 14, 2025 1.790 1.840 1.630 1.680 615,284 -0.09(-5.08%)
Aug 13, 2025 2.010 2.100 1.760 1.770 2,115,583 -0.08(-4.32%)
Aug 12, 2025 1.920 1.920 1.806 1.850 194,283 -0.03(-1.60%)
Aug 11, 2025 1.900 1.910 1.740 1.880 220,096 -0.02(-1.05%)
Aug 08, 2025 1.850 1.930 1.850 1.900 123,163 +0.01(+0.53%)
Aug 07, 2025 1.860 1.890 1.815 1.890 147,363 +0.05(+2.72%)
Aug 06, 2025 1.950 1.995 1.820 1.840 117,596 -0.11(-5.64%)
Aug 05, 2025 1.920 2.080 1.910 1.950 311,917 +0.07(+3.72%)
Aug 04, 2025 1.810 1.910 1.790 1.880 216,334 +0.08(+4.44%)
Stock Quote API & Stock News API supplied by www.cloudquote.io
Quotes delayed at least 20 minutes.
By accessing this page, you agree to the following
Privacy Policy and Terms Of Service.