Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
3.430
+0.030 (0.88%)
Oct 27, 2026, 4:00 PM EDT - Market closed
Koss Corporation Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 27, 2026 | 3.40 | 3.48 | 3.40 | 3.43 | 3.43 | 0.88% | 17,529 |
| Oct 26, 2026 | 3.48 | 3.49 | 3.40 | 3.40 | 3.40 | -1.59% | 11,753 |
| Oct 23, 2026 | 3.50 | 3.55 | 3.43 | 3.46 | 3.46 | -0.72% | 20,860 |
| Oct 22, 2026 | 3.69 | 3.69 | 3.42 | 3.48 | 3.48 | 0.29% | 19,814 |
| Oct 21, 2026 | 3.59 | 3.62 | 3.46 | 3.47 | 3.47 | -2.53% | 28,552 |
| Oct 20, 2026 | 3.62 | 3.72 | 3.50 | 3.56 | 3.56 | - | 31,486 |
| Oct 19, 2026 | 3.69 | 3.73 | 3.50 | 3.56 | 3.56 | -2.73% | 23,441 |
| Oct 16, 2026 | 3.75 | 3.77 | 3.65 | 3.66 | 3.66 | -2.14% | 23,439 |
| Oct 15, 2026 | 3.72 | 3.85 | 3.67 | 3.74 | 3.74 | -1.32% | 22,438 |
| Oct 14, 2026 | 3.81 | 3.89 | 3.73 | 3.79 | 3.79 | -1.04% | 24,084 |
| Oct 13, 2026 | 3.87 | 3.94 | 3.80 | 3.83 | 3.83 | -0.26% | 22,059 |
| Oct 12, 2026 | 3.82 | 3.95 | 3.66 | 3.84 | 3.84 | - | 18,264 |
| Oct 9, 2026 | 3.79 | 3.89 | 3.65 | 3.84 | 3.84 | 4.07% | 21,802 |
| Oct 8, 2026 | 3.77 | 3.88 | 3.61 | 3.69 | 3.69 | -1.07% | 35,505 |
| Oct 7, 2026 | 3.83 | 3.83 | 3.71 | 3.73 | 3.73 | -2.86% | 30,043 |
| Oct 6, 2026 | 3.88 | 3.93 | 3.76 | 3.84 | 3.84 | -1.54% | 27,366 |
| Oct 5, 2026 | 3.81 | 4.10 | 3.80 | 3.90 | 3.90 | 1.04% | 43,461 |
| Oct 2, 2026 | 3.95 | 3.95 | 3.78 | 3.86 | 3.86 | -2.03% | 23,559 |
| Oct 1, 2026 | 4.07 | 4.07 | 3.92 | 3.94 | 3.94 | -1.99% | 24,161 |
| Sep 30, 2026 | 3.97 | 4.03 | 3.91 | 4.02 | 4.02 | 1.01% | 16,421 |
| Sep 29, 2026 | 4.05 | 4.12 | 3.86 | 3.98 | 3.98 | -2.45% | 40,106 |
| Sep 28, 2026 | 4.01 | 4.20 | 3.99 | 4.08 | 4.08 | 2.00% | 100,364 |
| Sep 25, 2026 | 4.34 | 4.34 | 3.81 | 4.00 | 4.00 | -4.76% | 78,977 |
| Sep 24, 2026 | 4.01 | 4.44 | 3.94 | 4.20 | 4.20 | 6.33% | 265,178 |
| Sep 23, 2026 | 3.57 | 4.33 | 3.49 | 3.95 | 3.95 | 12.86% | 477,899 |
| Sep 22, 2026 | 3.47 | 3.54 | 3.46 | 3.50 | 3.50 | 0.86% | 38,438 |
| Sep 21, 2026 | 3.59 | 3.62 | 3.42 | 3.47 | 3.47 | -3.34% | 19,212 |
| Sep 18, 2026 | 3.54 | 3.62 | 3.42 | 3.59 | 3.59 | 1.70% | 29,646 |
| Sep 17, 2026 | 3.42 | 3.59 | 3.40 | 3.53 | 3.53 | 5.06% | 18,449 |
| Sep 16, 2026 | 3.43 | 3.48 | 3.35 | 3.36 | 3.36 | -1.18% | 14,025 |
| Sep 15, 2026 | 3.62 | 3.62 | 3.37 | 3.40 | 3.40 | -0.87% | 5,666 |
| Sep 14, 2026 | 3.48 | 3.62 | 3.40 | 3.43 | 3.43 | 0.59% | 18,174 |
| Sep 11, 2026 | 3.39 | 3.63 | 3.39 | 3.41 | 3.41 | 0.29% | 26,381 |
| Sep 10, 2026 | 3.47 | 3.48 | 3.30 | 3.40 | 3.40 | -1.73% | 9,512 |
| Sep 9, 2026 | 3.50 | 3.50 | 3.43 | 3.46 | 3.46 | -2.54% | 7,364 |
| Sep 8, 2026 | 3.60 | 3.60 | 3.48 | 3.55 | 3.55 | -0.84% | 8,986 |
| Sep 4, 2026 | 3.45 | 3.65 | 3.45 | 3.58 | 3.58 | 1.12% | 16,974 |
| Sep 3, 2026 | 3.57 | 3.57 | 3.41 | 3.54 | 3.54 | 1.15% | 14,868 |
| Sep 2, 2026 | 3.45 | 3.53 | 3.41 | 3.50 | 3.50 | 1.74% | 25,360 |
| Sep 1, 2026 | 3.43 | 3.55 | 3.37 | 3.44 | 3.44 | -0.58% | 20,338 |
| Aug 31, 2026 | 3.51 | 3.60 | 3.40 | 3.46 | 3.46 | -1.14% | 12,704 |
| Aug 28, 2026 | 3.45 | 3.65 | 3.38 | 3.50 | 3.50 | 2.34% | 21,280 |
| Aug 27, 2026 | 3.40 | 3.51 | 3.37 | 3.42 | 3.42 | -0.44% | 32,375 |
| Aug 26, 2026 | 3.47 | 3.55 | 3.40 | 3.44 | 3.44 | -0.43% | 17,394 |
| Aug 25, 2026 | 3.50 | 3.52 | 3.40 | 3.45 | 3.45 | -1.43% | 17,225 |
| Aug 24, 2026 | 3.55 | 3.59 | 3.50 | 3.50 | 3.50 | -1.96% | 14,968 |
| Aug 21, 2026 | 3.50 | 3.61 | 3.50 | 3.57 | 3.57 | 3.78% | 16,448 |
| Aug 20, 2026 | 3.55 | 3.66 | 3.44 | 3.44 | 3.44 | -3.37% | 17,803 |
| Aug 19, 2026 | 3.63 | 3.63 | 3.56 | 3.56 | 3.56 | -0.56% | 10,242 |
| Aug 18, 2026 | 3.71 | 3.71 | 3.52 | 3.58 | 3.58 | -3.24% | 22,197 |