Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
5.08
+0.14 (2.83%)
Oct 14, 2025, 3:22 PM EDT - Market open
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 14, 2025 | 4.85 | 5.15 | 4.82 | 5.08 | - | 2.83% | 18,947 |
| 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 |
| Aug 26, 2025 | 6.12 | 6.85 | 6.06 | 6.51 | 6.51 | 2.36% | 154,311 |
| Aug 25, 2025 | 6.48 | 6.55 | 6.30 | 6.36 | 6.36 | -1.85% | 90,477 |
| Aug 22, 2025 | 6.25 | 6.60 | 6.22 | 6.48 | 6.48 | 5.28% | 60,099 |
| Aug 21, 2025 | 6.08 | 6.29 | 6.00 | 6.16 | 6.16 | 0.90% | 33,687 |
| Aug 20, 2025 | 6.50 | 6.56 | 6.00 | 6.10 | 6.10 | -5.86% | 84,435 |
| Aug 19, 2025 | 6.90 | 6.93 | 6.20 | 6.48 | 6.48 | 5.62% | 378,622 |
| Aug 18, 2025 | 5.74 | 6.20 | 5.70 | 6.14 | 6.14 | 7.82% | 149,036 |
| Aug 15, 2025 | 5.54 | 5.80 | 5.52 | 5.69 | 5.69 | 4.02% | 66,376 |
| Aug 14, 2025 | 5.35 | 5.59 | 5.33 | 5.47 | 5.47 | -0.18% | 35,133 |
| Aug 13, 2025 | 5.46 | 5.50 | 5.30 | 5.48 | 5.48 | 2.24% | 40,565 |
| Aug 12, 2025 | 5.31 | 5.54 | 5.31 | 5.36 | 5.36 | 0.56% | 23,691 |
| Aug 11, 2025 | 5.55 | 5.58 | 5.22 | 5.33 | 5.33 | -2.74% | 37,678 |
| Aug 8, 2025 | 5.49 | 5.58 | 5.35 | 5.48 | 5.48 | -1.44% | 28,457 |
| Aug 7, 2025 | 5.76 | 5.76 | 5.43 | 5.56 | 5.56 | -2.97% | 36,583 |
| Aug 6, 2025 | 5.72 | 5.93 | 5.65 | 5.73 | 5.73 | 0.17% | 26,485 |
| Aug 5, 2025 | 5.44 | 5.78 | 5.41 | 5.72 | 5.72 | 5.54% | 68,571 |