Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
4.460
-0.010 (-0.22%)
At close: Dec 24, 2025, 1:00 PM EST
4.470
+0.010 (0.22%)
After-hours: Dec 24, 2025, 4:04 PM EST
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 24, 2025 | 4.46 | 4.50 | 4.41 | 4.46 | 4.46 | -0.22% | 6,228 |
| Dec 23, 2025 | 4.40 | 4.50 | 4.36 | 4.47 | 4.47 | 1.13% | 25,805 |
| Dec 22, 2025 | 4.36 | 4.60 | 4.36 | 4.42 | 4.42 | 3.27% | 48,236 |
| Dec 19, 2025 | 4.50 | 4.64 | 4.26 | 4.28 | 4.28 | -5.73% | 71,898 |
| Dec 18, 2025 | 4.51 | 4.80 | 4.41 | 4.54 | 4.54 | 0.89% | 146,842 |
| Dec 17, 2025 | 4.51 | 4.62 | 4.41 | 4.50 | 4.50 | -0.22% | 40,164 |
| Dec 16, 2025 | 4.54 | 4.65 | 4.51 | 4.51 | 4.51 | -1.96% | 14,915 |
| Dec 15, 2025 | 4.62 | 4.65 | 4.50 | 4.60 | 4.60 | 0.44% | 32,669 |
| Dec 12, 2025 | 4.70 | 4.72 | 4.58 | 4.58 | 4.58 | -2.97% | 16,105 |
| Dec 11, 2025 | 4.62 | 4.76 | 4.61 | 4.72 | 4.72 | 1.51% | 12,625 |
| Dec 10, 2025 | 4.70 | 4.86 | 4.63 | 4.65 | 4.65 | -2.52% | 21,909 |
| Dec 9, 2025 | 4.59 | 4.77 | 4.59 | 4.77 | 4.77 | 3.92% | 24,813 |
| Dec 8, 2025 | 4.96 | 4.96 | 4.56 | 4.59 | 4.59 | -4.77% | 84,066 |
| Dec 5, 2025 | 4.89 | 4.90 | 4.82 | 4.82 | 4.82 | -0.62% | 19,066 |
| Dec 4, 2025 | 4.86 | 4.93 | 4.80 | 4.85 | 4.85 | -1.82% | 18,305 |
| Dec 3, 2025 | 4.90 | 4.97 | 4.81 | 4.94 | 4.94 | 0.82% | 21,745 |
| Dec 2, 2025 | 4.94 | 4.99 | 4.86 | 4.90 | 4.90 | 1.03% | 19,860 |
| Dec 1, 2025 | 4.92 | 4.98 | 4.83 | 4.85 | 4.85 | -4.15% | 11,289 |
| Nov 28, 2025 | 4.79 | 5.06 | 4.79 | 5.06 | 5.06 | 5.20% | 25,044 |
| Nov 26, 2025 | 4.83 | 4.92 | 4.71 | 4.81 | 4.81 | 0.21% | 28,627 |
| Nov 25, 2025 | 4.71 | 4.91 | 4.66 | 4.80 | 4.80 | 3.90% | 23,160 |
| Nov 24, 2025 | 4.62 | 4.74 | 4.62 | 4.62 | 4.62 | -0.86% | 24,429 |
| Nov 21, 2025 | 4.55 | 4.82 | 4.50 | 4.66 | 4.66 | 1.97% | 56,456 |
| Nov 20, 2025 | 4.62 | 4.72 | 4.52 | 4.57 | 4.57 | -0.98% | 14,701 |
| Nov 19, 2025 | 4.64 | 4.70 | 4.56 | 4.62 | 4.62 | -0.54% | 12,823 |
| Nov 18, 2025 | 4.74 | 4.74 | 4.61 | 4.64 | 4.64 | -2.32% | 12,667 |
| Nov 17, 2025 | 4.82 | 4.87 | 4.65 | 4.75 | 4.75 | -1.45% | 17,633 |
| Nov 14, 2025 | 4.74 | 4.99 | 4.74 | 4.82 | 4.82 | 0.42% | 11,079 |
| Nov 13, 2025 | 4.99 | 4.99 | 4.75 | 4.80 | 4.80 | -2.44% | 21,569 |
| Nov 12, 2025 | 4.98 | 5.07 | 4.88 | 4.92 | 4.92 | -1.80% | 22,897 |
| Nov 11, 2025 | 5.09 | 5.09 | 4.83 | 5.01 | 5.01 | -1.65% | 33,613 |
| Nov 10, 2025 | 4.58 | 5.10 | 4.58 | 5.09 | 5.09 | 13.20% | 71,644 |
| Nov 7, 2025 | 4.45 | 4.55 | 4.34 | 4.50 | 4.50 | -0.88% | 34,308 |
| Nov 6, 2025 | 4.72 | 4.78 | 4.46 | 4.54 | 4.54 | -3.61% | 25,042 |
| Nov 5, 2025 | 4.61 | 4.76 | 4.60 | 4.71 | 4.71 | 2.17% | 26,703 |
| 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 |