Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
4.710
+0.100 (2.17%)
At close: Nov 5, 2025, 4:00 PM EST
4.620
-0.090 (-1.91%)
After-hours: Nov 5, 2025, 7:56 PM EST
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 5, 2025 | 4.61 | 4.76 | 4.60 | 4.71 | 4.71 | 2.17% | 26,599 |
| Nov 4, 2025 | 4.71 | 4.88 | 4.59 | 4.61 | 4.61 | -3.56% | 52,132 |
| Nov 3, 2025 | 4.81 | 4.85 | 4.72 | 4.78 | 4.78 | -1.04% | 18,469 |
| Oct 31, 2025 | 5.19 | 5.19 | 4.81 | 4.83 | 4.83 | 0.84% | 41,530 |
| Oct 30, 2025 | 4.90 | 4.90 | 4.75 | 4.79 | 4.79 | -2.04% | 30,121 |
| Oct 29, 2025 | 5.01 | 5.02 | 4.86 | 4.89 | 4.89 | -3.36% | 26,850 |
| Oct 28, 2025 | 5.05 | 5.16 | 5.00 | 5.06 | 5.06 | -0.39% | 26,945 |
| Oct 27, 2025 | 5.15 | 5.30 | 5.04 | 5.08 | 5.08 | -2.12% | 54,601 |
| Oct 24, 2025 | 5.19 | 5.21 | 5.05 | 5.19 | 5.19 | 2.98% | 33,088 |
| Oct 23, 2025 | 4.99 | 5.12 | 4.98 | 5.04 | 5.04 | 1.51% | 29,618 |
| Oct 22, 2025 | 5.46 | 5.60 | 4.85 | 4.97 | 4.97 | -9.46% | 154,147 |
| Oct 21, 2025 | 5.00 | 5.50 | 5.00 | 5.48 | 5.48 | 9.90% | 121,969 |
| Oct 20, 2025 | 4.93 | 5.06 | 4.90 | 4.99 | 4.99 | 1.63% | 27,275 |
| Oct 17, 2025 | 5.18 | 5.27 | 4.72 | 4.91 | 4.91 | -5.21% | 87,783 |
| Oct 16, 2025 | 5.38 | 5.51 | 5.18 | 5.18 | 5.18 | -4.07% | 31,285 |
| Oct 15, 2025 | 5.17 | 5.70 | 5.16 | 5.40 | 5.40 | 5.68% | 241,548 |
| Oct 14, 2025 | 4.85 | 5.15 | 4.82 | 5.11 | 5.11 | 3.44% | 21,612 |
| Oct 13, 2025 | 4.91 | 5.10 | 4.88 | 4.94 | 4.94 | 1.65% | 30,731 |
| Oct 10, 2025 | 4.93 | 5.03 | 4.84 | 4.86 | 4.86 | -0.61% | 40,146 |
| Oct 9, 2025 | 4.98 | 4.99 | 4.85 | 4.89 | 4.89 | -1.41% | 55,355 |
| Oct 8, 2025 | 5.01 | 5.09 | 4.96 | 4.96 | 4.96 | -1.39% | 32,013 |
| Oct 7, 2025 | 5.08 | 5.18 | 4.96 | 5.03 | 5.03 | -1.95% | 30,550 |
| Oct 6, 2025 | 5.22 | 5.22 | 5.10 | 5.13 | 5.13 | -1.16% | 33,035 |
| Oct 3, 2025 | 5.24 | 5.32 | 5.15 | 5.19 | 5.19 | 0.19% | 40,519 |
| Oct 2, 2025 | 5.26 | 5.26 | 5.11 | 5.18 | 5.18 | -0.77% | 43,303 |
| Oct 1, 2025 | 5.08 | 5.25 | 5.08 | 5.22 | 5.22 | 2.76% | 29,934 |
| Sep 30, 2025 | 5.20 | 5.25 | 5.02 | 5.08 | 5.08 | -2.31% | 29,345 |
| Sep 29, 2025 | 5.21 | 5.30 | 5.15 | 5.20 | 5.20 | -1.14% | 29,737 |
| Sep 26, 2025 | 5.30 | 5.43 | 5.15 | 5.26 | 5.26 | - | 29,450 |
| Sep 25, 2025 | 5.41 | 5.46 | 5.22 | 5.26 | 5.26 | -3.40% | 20,967 |
| Sep 24, 2025 | 5.50 | 5.63 | 5.38 | 5.45 | 5.45 | -1.00% | 26,762 |
| Sep 23, 2025 | 5.62 | 5.70 | 5.50 | 5.50 | 5.50 | -3.00% | 33,519 |
| Sep 22, 2025 | 5.64 | 5.85 | 5.61 | 5.67 | 5.67 | - | 32,738 |
| Sep 19, 2025 | 5.72 | 5.76 | 5.60 | 5.67 | 5.67 | -1.73% | 30,949 |
| Sep 18, 2025 | 5.73 | 5.79 | 5.70 | 5.77 | 5.77 | 1.58% | 22,516 |
| Sep 17, 2025 | 5.70 | 5.88 | 5.59 | 5.68 | 5.68 | -0.35% | 31,250 |
| Sep 16, 2025 | 5.77 | 5.80 | 5.60 | 5.70 | 5.70 | -1.64% | 32,813 |
| Sep 15, 2025 | 5.69 | 5.91 | 5.69 | 5.80 | 5.80 | 1.85% | 75,910 |
| Sep 12, 2025 | 5.70 | 5.76 | 5.60 | 5.69 | 5.69 | -0.52% | 31,668 |
| Sep 11, 2025 | 5.82 | 5.87 | 5.70 | 5.72 | 5.72 | -1.04% | 51,505 |
| Sep 10, 2025 | 6.08 | 6.12 | 5.72 | 5.78 | 5.78 | -4.70% | 81,851 |
| Sep 9, 2025 | 6.02 | 6.13 | 5.97 | 6.07 | 6.07 | 0.08% | 51,788 |
| Sep 8, 2025 | 6.25 | 6.29 | 6.02 | 6.06 | 6.06 | -1.46% | 41,495 |
| Sep 5, 2025 | 6.10 | 6.24 | 5.95 | 6.15 | 6.15 | 1.32% | 23,506 |
| Sep 4, 2025 | 6.18 | 6.18 | 6.02 | 6.07 | 6.07 | -2.02% | 25,161 |
| Sep 3, 2025 | 6.27 | 6.33 | 6.13 | 6.20 | 6.20 | -0.48% | 40,270 |
| Sep 2, 2025 | 6.10 | 6.31 | 6.03 | 6.23 | 6.23 | 0.40% | 40,542 |
| Aug 29, 2025 | 6.38 | 6.39 | 6.10 | 6.20 | 6.20 | -0.16% | 32,861 |
| Aug 28, 2025 | 6.39 | 6.39 | 6.14 | 6.21 | 6.21 | -3.12% | 59,639 |
| Aug 27, 2025 | 6.55 | 6.68 | 6.34 | 6.41 | 6.41 | -1.54% | 47,039 |