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

NovaBay Pharmaceuticals, Inc. Common Stock (NY:NBY)

1.780 +0.130 (+7.88%)
Official Closing Price Updated: 8:00 PM EDT, Aug 29, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Aug 29, 2025 1.750 2.130 1.650 1.780 8,391,719 +0.13(+7.88%)
Aug 28, 2025 1.500 1.710 1.450 1.650 5,743,142 +0.10(+6.45%)
Aug 27, 2025 1.820 1.900 1.500 1.550 141,279,744 +0.65(+72.41%)
Aug 26, 2025 0.9100 0.9300 0.8651 0.8990 23,187,648 -0.01(-0.83%)
Aug 25, 2025 0.9018 0.9800 0.9018 0.9065 786,684 -0.00(-0.40%)
Aug 22, 2025 1.010 1.100 0.9101 0.9101 1,696,371 -0.16(-14.94%)
Aug 21, 2025 0.9500 1.070 0.8802 1.070 5,100,565 +0.04(+3.88%)
Aug 20, 2025 1.090 1.250 0.9341 1.030 178,059,488 +0.43(+71.67%)
Aug 19, 2025 0.6200 0.6249 0.6000 0.6000 6,669,773 -0.02(-3.68%)
Aug 18, 2025 0.6200 0.6463 0.5860 0.6229 15,566 +0.01(+0.87%)
Aug 15, 2025 0.5830 0.6200 0.5383 0.6175 212,919 +0.01(+2.10%)
Aug 14, 2025 0.5800 0.6048 0.5803 0.6048 26,073 +0.01(+2.51%)
Aug 13, 2025 0.5900 0.6100 0.5803 0.5900 22,970 +0.01(+0.89%)
Aug 12, 2025 0.6045 0.6199 0.5848 0.5848 49,052 -0.02(-2.70%)
Aug 11, 2025 0.7000 0.7000 0.5900 0.6010 29,820 +0.01(+1.43%)
Aug 08, 2025 0.6000 0.6200 0.5700 0.5925 29,818 +0.01(+1.84%)
Aug 07, 2025 0.5900 0.5908 0.5792 0.5818 10,954 -0.01(-1.52%)
Aug 06, 2025 0.5981 0.6012 0.5908 0.5908 38,817 -0.02(-3.31%)
Aug 05, 2025 0.6100 0.6199 0.6100 0.6110 81,650 +0.00(+0.16%)
Aug 04, 2025 0.6000 0.6200 0.5900 0.6100 52,751 +0.02(+2.78%)
Aug 01, 2025 0.6000 0.6196 0.5700 0.5935 30,886 +0.01(+2.15%)
Jul 31, 2025 0.6122 0.6200 0.5715 0.5810 24,320 -0.04(-6.29%)
Jul 30, 2025 0.6319 0.6538 0.6000 0.6200 27,292 -0.01(-1.90%)
Jul 29, 2025 0.6400 0.6500 0.6300 0.6320 27,258 -0.01(-1.80%)
Jul 28, 2025 0.6600 0.6742 0.6436 0.6436 27,573 -0.03(-4.28%)
Jul 25, 2025 0.6648 0.6890 0.6515 0.6724 118,091 +0.02(+3.24%)
Jul 24, 2025 0.6400 0.6899 0.6400 0.6513 40,836 -0.00(-0.64%)
Jul 23, 2025 0.6400 0.6575 0.6311 0.6555 6,919 +0.01(+2.25%)
Jul 22, 2025 0.6599 0.6800 0.6411 0.6411 10,443 -0.01(-1.75%)
Jul 21, 2025 0.6377 0.6600 0.6377 0.6525 19,556 -0.01(-1.58%)
Jul 18, 2025 0.7000 0.7000 0.6482 0.6630 15,748 +0.01(+2.00%)
Jul 17, 2025 0.6878 0.6890 0.6500 0.6500 34,839 +0.00(+0.65%)
Jul 16, 2025 0.6700 0.6700 0.6211 0.6458 23,660 -0.02(-3.61%)
Jul 15, 2025 0.6800 0.6794 0.6700 0.6700 21,636 -0.02(-2.90%)
Jul 14, 2025 0.6900 0.7500 0.6200 0.6900 195,982 -0.00(-0.29%)
Jul 11, 2025 0.6450 0.7000 0.6138 0.6920 91,014 +0.04(+6.51%)
Jul 10, 2025 0.6100 0.6497 0.6100 0.6497 13,186 +0.00(+0.05%)
Jul 09, 2025 0.6900 0.6900 0.6000 0.6494 41,627 -0.01(-1.96%)
Jul 08, 2025 0.6600 0.6900 0.6300 0.6624 37,222 -0.00(-0.08%)
Jul 07, 2025 0.6495 0.6965 0.6300 0.6629 61,029 +0.03(+5.39%)
Jul 03, 2025 0.6300 0.6422 0.6000 0.6290 8,792 +0.00(+0.62%)
Jul 02, 2025 0.6172 0.6259 0.6123 0.6251 9,962 +0.02(+2.64%)
Jul 01, 2025 0.5900 0.6199 0.5944 0.6090 23,125 +0.03(+5.00%)
Jun 30, 2025 0.6100 0.6100 0.5800 0.5800 15,393 -0.03(-4.26%)
Jun 27, 2025 0.6020 0.6058 0.6000 0.6058 31,401 +0.01(+0.97%)
Jun 26, 2025 0.5755 0.6000 0.5755 0.6000 8,839 +0.03(+4.60%)
Jun 25, 2025 0.5772 0.5773 0.5702 0.5736 6,048 -0.00(-0.64%)
Jun 24, 2025 0.5700 0.5823 0.5700 0.5773 23,358 +0.01(+1.28%)
Jun 23, 2025 0.5700 0.5990 0.5700 0.5700 31,532 +0.00(+0.00%)
Jun 20, 2025 0.6000 0.6100 0.5700 0.5700 29,554 -0.04(-6.57%)
Jun 18, 2025 0.6048 0.6192 0.6000 0.6101 7,696 -0.01(-1.31%)
Jun 17, 2025 0.6000 0.6297 0.6000 0.6182 27,706 +0.02(+3.03%)
Jun 16, 2025 0.6000 0.6398 0.5999 0.6000 22,406 +0.00(+0.00%)
Jun 13, 2025 0.6300 0.6300 0.5999 0.6000 12,133 -0.04(-6.77%)
Jun 12, 2025 0.6000 0.6436 0.5876 0.6436 18,525 +0.04(+7.45%)
Jun 11, 2025 0.6000 0.6492 0.5900 0.5990 57,936 +0.00(+0.49%)
Jun 10, 2025 0.5900 0.6048 0.5710 0.5961 20,770 +0.00(+0.30%)
Jun 09, 2025 0.5700 0.6000 0.5699 0.5943 40,864 +0.01(+2.47%)
Jun 06, 2025 0.5900 0.5915 0.5600 0.5800 20,497 -0.01(-1.64%)
Jun 05, 2025 0.5791 0.6053 0.5791 0.5897 36,303 -0.01(-1.22%)
Jun 04, 2025 0.5600 0.5970 0.5600 0.5970 161,459 +0.04(+7.14%)
Jun 03, 2025 0.5600 0.5800 0.5540 0.5572 39,476 +0.00(+0.58%)
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.