Koss Corporation (KOSS)
NASDAQ: KOSS
· Real-Time Price · USD
5.26
0.00 (0.00%)
At close: Sep 26, 2025, 3:59 PM
5.35
1.71%
After-hours: Sep 26, 2025, 07:41 PM EDT
KOSS Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 26, 2025 | 5.30 | 5.43 | 5.15 | 5.26 | 5.26 | 0.00% | 28,958 |
| Sep 25, 2025 | 5.41 | 5.46 | 5.22 | 5.26 | 5.26 | -3.49% | 20,967 |
| Sep 24, 2025 | 5.50 | 5.63 | 5.38 | 5.45 | 5.45 | -0.91% | 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 | 0.00% | 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 | -1.72% | 32,813 |
| Sep 15, 2025 | 5.69 | 5.91 | 5.69 | 5.80 | 5.80 | 1.93% | 75,910 |
| Sep 12, 2025 | 5.70 | 5.76 | 5.60 | 5.69 | 5.69 | -0.52% | 31,700 |
| 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 | -4.78% | 81,851 |
| Sep 9, 2025 | 6.02 | 6.13 | 5.97 | 6.07 | 6.07 | 0.17% | 51,788 |
| Sep 8, 2025 | 6.25 | 6.29 | 6.02 | 6.06 | 6.06 | -1.46% | 41,500 |
| 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 | -2.10% | 25,200 |
| Sep 3, 2025 | 6.27 | 6.33 | 6.13 | 6.20 | 6.20 | -0.48% | 40,310 |
| Sep 2, 2025 | 6.10 | 6.31 | 6.03 | 6.23 | 6.23 | 0.48% | 40,542 |
| Aug 29, 2025 | 6.38 | 6.39 | 6.10 | 6.20 | 6.20 | -0.16% | 32,861 |