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.

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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

36Kr Holdings Inc. - American Depositary Shares (NQ:KRKR)

7.190 -0.950 (-11.67%)
Streaming Delayed Price Updated: 4:00 PM EDT, Sep 26, 2025 Add to My Watchlist

Historical Prices

Date Open High Low Close Volume Change (%)
Sep 26, 2025 7.465 7.670 6.700 7.190 60,755 -0.95(-11.67%)
Sep 25, 2025 8.500 8.690 8.020 8.140 67,488 +0.05(+0.62%)
Sep 24, 2025 8.160 8.180 7.910 8.090 9,552 +0.35(+4.54%)
Sep 23, 2025 8.030 8.410 7.739 7.739 17,094 -0.64(-7.65%)
Sep 22, 2025 8.000 8.460 7.300 8.380 105,163 +0.73(+9.54%)
Sep 19, 2025 7.600 7.745 7.020 7.650 22,854 +0.02(+0.26%)
Sep 18, 2025 8.270 8.270 6.950 7.630 116,693 -0.64(-7.74%)
Sep 17, 2025 7.840 8.270 7.840 8.270 13,694 +0.14(+1.72%)
Sep 16, 2025 7.860 8.190 7.560 8.130 27,654 +0.39(+5.04%)
Sep 15, 2025 7.110 8.250 7.110 7.740 103,549 +0.37(+5.02%)
Sep 12, 2025 8.070 8.320 6.853 7.370 102,778 -0.83(-10.10%)
Sep 11, 2025 9.080 9.090 7.940 8.198 95,341 -0.31(-3.67%)
Sep 10, 2025 8.000 10.69 8.000 8.510 172,215 -0.01(-0.12%)
Sep 09, 2025 7.230 8.800 6.214 8.520 593,394 -1.58(-15.64%)
Sep 08, 2025 5.500 21.36 5.500 10.10 8,094,746 +4.86(+92.75%)
Sep 05, 2025 5.120 5.290 4.940 5.240 4,803 +0.39(+8.04%)
Sep 02, 2025 4.850 1,805 -0.05(-1.02%)
Aug 29, 2025 4.420 5.100 4.420 4.900 7,505 +0.40(+8.89%)
Aug 28, 2025 4.570 4.780 4.470 4.500 2,302 -0.30(-6.25%)
Aug 27, 2025 4.800 4.800 4.800 4.800 1,211 -0.01(-0.21%)
Aug 26, 2025 4.900 4.900 4.810 4.810 983 -0.18(-3.61%)
Aug 25, 2025 4.950 5.000 4.460 4.990 7,677 -0.06(-1.19%)
Aug 22, 2025 4.500 5.230 4.500 5.050 5,468 +0.79(+18.54%)
Aug 21, 2025 4.500 4.500 4.260 4.260 1,147 -0.24(-5.33%)
Aug 20, 2025 4.600 4.680 4.500 4.500 1,018 -0.20(-4.26%)
Aug 19, 2025 4.690 4.830 4.500 4.700 3,387 -0.15(-3.09%)
Aug 18, 2025 4.710 4.920 4.700 4.850 10,910 +0.15(+3.19%)
Aug 15, 2025 4.673 4.700 4.673 4.700 1,434 -0.23(-4.67%)
Aug 14, 2025 4.960 5.150 4.830 4.930 3,410 -0.34(-6.45%)
Aug 13, 2025 5.090 5.270 5.090 5.270 7,454 +0.37(+7.46%)
Aug 11, 2025 4.904 1,843 -0.22(-4.22%)
Aug 08, 2025 5.010 5.120 5.010 5.120 1,620 -0.03(-0.58%)
Aug 07, 2025 5.120 5.556 5.000 5.150 13,601 +0.11(+2.18%)
Aug 06, 2025 4.440 5.300 4.440 5.040 12,261 +0.32(+6.78%)
Aug 05, 2025 4.790 4.800 4.550 4.720 8,593 -0.32(-6.26%)
Aug 04, 2025 5.035 5.035 5.035 5.035 1,116 +0.02(+0.30%)
Aug 01, 2025 5.160 6.180 4.820 5.020 69,823 -0.18(-3.46%)
Jul 31, 2025 5.050 5.400 4.660 5.200 36,567 +0.13(+2.56%)
Jul 30, 2025 4.704 5.400 4.700 5.070 63,261 -0.11(-2.19%)
Jul 29, 2025 4.700 5.373 4.510 5.184 93,012 +0.18(+3.67%)
Jul 28, 2025 4.260 5.200 4.260 5.000 38,361 +0.25(+5.26%)
Jul 25, 2025 4.530 4.750 4.510 4.750 11,557 +0.25(+5.67%)
Jul 24, 2025 4.750 4.750 4.000 4.495 5,692 -0.52(-10.45%)
Jul 23, 2025 5.000 5.020 5.000 5.020 1,214 -0.20(-3.74%)
Jul 22, 2025 5.400 5.550 5.091 5.215 4,785 -0.29(-5.18%)
Jul 21, 2025 5.530 5.645 5.480 5.500 10,456 -0.07(-1.26%)
Jul 18, 2025 5.400 6.010 5.350 5.570 26,136 +0.18(+3.34%)
Jul 17, 2025 5.300 5.400 5.300 5.390 2,422 +0.08(+1.50%)
Jul 15, 2025 5.310 177 -0.68(-11.35%)
Jul 14, 2025 6.200 6.200 5.880 5.990 2,155 -0.16(-2.60%)
Jul 11, 2025 5.901 6.230 5.735 6.150 15,933 +0.56(+10.02%)
Jul 10, 2025 5.740 5.740 5.590 5.590 1,967 +0.01(+0.18%)
Jul 09, 2025 5.590 5.640 5.580 5.580 553 -0.07(-1.24%)
Jul 08, 2025 5.650 5.650 5.650 5.650 246 +0.34(+6.40%)
Jul 03, 2025 5.310 172 -0.19(-3.47%)
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