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

Canterra Minerals Corp (OP:CTMCF)

0.1016 UNCHANGED
Streaming Delayed Price Updated: 3:55 PM EDT, Oct 21, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Oct 21, 2025 0.1028 0.1042 0.0926 0.1016 188,262 +0.00(+1.70%)
Oct 20, 2025 0.0910 0.1041 0.0910 0.0999 462,761 +0.01(+8.59%)
Oct 17, 2025 0.0961 0.1000 0.0909 0.0920 465,507 -0.00(-4.27%)
Oct 16, 2025 0.1060 0.1077 0.0950 0.0961 1,004,796 -0.01(-7.51%)
Oct 15, 2025 0.1018 0.1120 0.0987 0.1039 564,819 -0.00(-2.07%)
Oct 14, 2025 0.1081 0.1081 0.1014 0.1061 154,025 +0.00(+3.41%)
Oct 13, 2025 0.1040 0.1150 0.0910 0.1026 784,568 -0.00(-1.82%)
Oct 10, 2025 0.1084 0.1099 0.1016 0.1045 448,847 -0.00(-1.51%)
Oct 09, 2025 0.1071 0.1094 0.1045 0.1061 344,005 -0.00(-0.84%)
Oct 08, 2025 0.1126 0.1150 0.1051 0.1070 803,050 +0.00(+1.33%)
Oct 07, 2025 0.1062 0.1155 0.0994 0.1056 1,510,993 -0.01(-6.38%)
Oct 06, 2025 0.1085 0.1150 0.1070 0.1128 362,553 +0.01(+10.70%)
Oct 03, 2025 0.1075 0.1120 0.0988 0.1019 307,223 -0.00(-2.86%)
Oct 02, 2025 0.1172 0.1172 0.0993 0.1049 637,971 -0.00(-3.76%)
Oct 01, 2025 0.1063 0.1102 0.1038 0.1090 760,241 +0.01(+5.31%)
Sep 30, 2025 0.1100 0.1100 0.0975 0.1035 480,547 -0.00(-0.58%)
Sep 29, 2025 0.1150 0.1150 0.1010 0.1041 725,983 -0.00(-3.16%)
Sep 26, 2025 0.1150 0.1173 0.1044 0.1075 595,362 -0.00(-2.27%)
Sep 25, 2025 0.1190 0.1190 0.1036 0.1100 89,269 +0.00(+0.00%)
Sep 24, 2025 0.1190 0.1190 0.1063 0.1100 943,714 -0.01(-5.17%)
Sep 23, 2025 0.1103 0.1186 0.1100 0.1160 1,315,094 +0.01(+13.50%)
Sep 22, 2025 0.1010 0.1114 0.1009 0.1022 957,171 -0.00(-2.67%)
Sep 19, 2025 0.0985 0.1067 0.0900 0.1050 431,708 +0.01(+8.36%)
Sep 18, 2025 0.1006 0.1048 0.0909 0.0969 554,680 -0.00(-3.00%)
Sep 17, 2025 0.1060 0.1060 0.0950 0.0999 1,465,949 -0.01(-11.20%)
Sep 16, 2025 0.1150 0.1163 0.1090 0.1125 663,293 -0.00(-0.44%)
Sep 15, 2025 0.1170 0.1205 0.1099 0.1130 989,688 +0.00(+2.73%)
Sep 12, 2025 0.1102 0.1170 0.1055 0.1100 768,410 +0.00(+0.92%)
Sep 11, 2025 0.1250 0.1255 0.1072 0.1090 1,465,926 -0.01(-7.39%)
Sep 10, 2025 0.0840 0.1232 0.0840 0.1177 1,977,931 +0.03(+31.80%)
Sep 09, 2025 0.1028 0.1028 0.0860 0.0893 3,361,420 -0.00(-0.78%)
Sep 08, 2025 0.0850 0.1000 0.0796 0.0900 5,000,747 +0.01(+18.73%)
Sep 05, 2025 0.0730 0.0820 0.0700 0.0758 1,033,027 -0.00(-0.79%)
Sep 04, 2025 0.0840 0.0840 0.0748 0.0764 726,792 -0.00(-3.78%)
Sep 03, 2025 0.0820 0.0850 0.0715 0.0794 1,140,005 +0.01(+8.32%)
Sep 02, 2025 0.0992 0.0993 0.0708 0.0733 1,506,216 -0.02(-19.09%)
Aug 29, 2025 0.0695 0.0906 0.0651 0.0906 1,861,004 +0.02(+25.31%)
Aug 28, 2025 0.0685 0.0723 0.0631 0.0723 1,301,464 +0.01(+9.55%)
Aug 27, 2025 0.0628 0.0660 0.0612 0.0660 54,786 +0.00(+6.80%)
Aug 26, 2025 0.0640 0.0655 0.0618 0.0618 177,000 -0.00(-2.22%)
Aug 25, 2025 0.0615 0.0655 0.0615 0.0632 108,350 -0.00(-0.16%)
Aug 22, 2025 0.0628 0.0656 0.0610 0.0633 310,537 +0.00(+1.61%)
Aug 21, 2025 0.0577 0.0627 0.0550 0.0623 190,257 +0.00(+7.41%)
Aug 20, 2025 0.0580 0.0599 0.0550 0.0580 308,681 +0.00(+0.87%)
Aug 19, 2025 0.0630 0.0630 0.0560 0.0575 462,037 -0.00(-6.81%)
Aug 18, 2025 0.0630 0.0656 0.0600 0.0617 170,342 -0.00(-4.64%)
Aug 15, 2025 0.0674 0.0681 0.0612 0.0647 81,573 -0.00(-4.01%)
Aug 14, 2025 0.0739 0.0739 0.0670 0.0674 80,510 -0.00(-2.88%)
Aug 13, 2025 0.0687 0.0730 0.0666 0.0694 485,714 -0.01(-8.68%)
Aug 12, 2025 0.0700 0.0760 0.0683 0.0760 229,189 +0.00(+4.68%)
Aug 11, 2025 0.0760 0.0784 0.0715 0.0726 171,563 +0.00(+2.69%)
Aug 08, 2025 0.0740 0.0800 0.0707 0.0707 528,960 -0.00(-5.73%)
Aug 07, 2025 0.0818 0.0818 0.0730 0.0750 820,626 -0.01(-6.48%)
Aug 06, 2025 0.0657 0.0804 0.0614 0.0802 1,648,797 +0.01(+11.39%)
Aug 05, 2025 0.0702 0.0740 0.0645 0.0720 247,832 -0.01(-9.89%)
Aug 04, 2025 0.0700 0.0799 0.0700 0.0799 559,400 +0.01(+18.72%)
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 Privacy Policy and Terms Of Service.