Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
3.730
+0.050 (1.36%)
At close: Aug 3, 2026, 4:00 PM EDT
3.717
-0.013 (-0.35%)
After-hours: Aug 3, 2026, 7:34 PM EDT
Koss Corporation Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026 | 3.79 | 3.79 | 3.68 | 3.73 | 3.73 | 1.36% | 46,932 |
| Jul 31, 2026 | 3.71 | 3.81 | 3.68 | 3.68 | 3.68 | - | 10,627 |
| Jul 30, 2026 | 3.68 | 3.79 | 3.66 | 3.68 | 3.68 | 1.38% | 12,168 |
| Jul 29, 2026 | 3.68 | 3.74 | 3.63 | 3.63 | 3.63 | -2.42% | 20,083 |
| Jul 28, 2026 | 3.69 | 3.80 | 3.66 | 3.72 | 3.72 | 1.64% | 15,510 |
| Jul 27, 2026 | 3.76 | 3.77 | 3.66 | 3.66 | 3.66 | -2.40% | 13,940 |
| Jul 24, 2026 | 3.84 | 3.84 | 3.65 | 3.75 | 3.75 | -0.27% | 18,743 |
| Jul 23, 2026 | 3.80 | 3.86 | 3.72 | 3.76 | 3.76 | -2.59% | 12,986 |
| Jul 22, 2026 | 3.84 | 3.86 | 3.73 | 3.86 | 3.86 | 1.58% | 14,357 |
| Jul 21, 2026 | 3.80 | 3.83 | 3.73 | 3.80 | 3.80 | 1.06% | 18,905 |
| Jul 20, 2026 | 3.78 | 3.86 | 3.74 | 3.76 | 3.76 | -1.05% | 13,037 |
| Jul 17, 2026 | 3.82 | 3.90 | 3.78 | 3.80 | 3.80 | -1.55% | 23,530 |
| Jul 16, 2026 | 3.93 | 4.03 | 3.80 | 3.86 | 3.86 | -2.77% | 19,630 |
| Jul 15, 2026 | 3.82 | 3.97 | 3.82 | 3.97 | 3.97 | 4.75% | 12,613 |
| Jul 14, 2026 | 3.90 | 3.95 | 3.74 | 3.79 | 3.79 | -2.82% | 46,865 |
| Jul 13, 2026 | 3.93 | 3.97 | 3.90 | 3.90 | 3.90 | -1.27% | 5,522 |
| Jul 10, 2026 | 3.88 | 3.95 | 3.82 | 3.95 | 3.95 | 2.07% | 18,234 |
| Jul 9, 2026 | 3.80 | 3.99 | 3.79 | 3.87 | 3.87 | 1.31% | 17,640 |
| Jul 8, 2026 | 3.89 | 3.95 | 3.79 | 3.82 | 3.82 | -2.55% | 20,652 |
| Jul 7, 2026 | 4.09 | 4.09 | 3.92 | 3.92 | 3.92 | -4.16% | 23,800 |
| Jul 6, 2026 | 4.03 | 4.13 | 3.89 | 4.09 | 4.09 | 3.02% | 46,547 |
| Jul 2, 2026 | 3.95 | 4.02 | 3.86 | 3.97 | 3.97 | 1.79% | 4,906 |
| Jul 1, 2026 | 4.00 | 4.08 | 3.90 | 3.90 | 3.90 | -2.74% | 24,998 |
| Jun 30, 2026 | 3.95 | 4.15 | 3.95 | 4.01 | 4.01 | 0.50% | 12,375 |
| Jun 29, 2026 | 3.98 | 3.99 | 3.91 | 3.99 | 3.99 | - | 6,025 |
| Jun 26, 2026 | 3.97 | 3.99 | 3.90 | 3.99 | 3.99 | 1.01% | 24,590 |
| Jun 25, 2026 | 3.94 | 4.00 | 3.82 | 3.95 | 3.95 | -1.50% | 26,890 |
| Jun 24, 2026 | 3.93 | 4.06 | 3.93 | 4.01 | 4.01 | 0.75% | 16,769 |
| Jun 23, 2026 | 3.93 | 3.99 | 3.85 | 3.98 | 3.98 | 1.27% | 17,278 |
| Jun 22, 2026 | 3.96 | 3.99 | 3.87 | 3.93 | 3.93 | -2.48% | 18,884 |
| Jun 18, 2026 | 4.05 | 4.12 | 3.97 | 4.03 | 4.03 | 2.03% | 45,483 |
| Jun 17, 2026 | 4.00 | 4.08 | 3.89 | 3.95 | 3.95 | -0.75% | 23,927 |
| Jun 16, 2026 | 3.90 | 4.03 | 3.85 | 3.98 | 3.98 | 4.74% | 20,693 |
| Jun 15, 2026 | 3.96 | 4.10 | 3.80 | 3.80 | 3.80 | -2.81% | 35,219 |
| Jun 12, 2026 | 3.97 | 4.01 | 3.91 | 3.91 | 3.91 | -2.49% | 16,150 |
| Jun 11, 2026 | 3.98 | 4.01 | 3.91 | 4.01 | 4.01 | 2.56% | 19,674 |
| Jun 10, 2026 | 3.98 | 4.04 | 3.91 | 3.91 | 3.91 | -1.76% | 41,418 |
| Jun 9, 2026 | 4.10 | 4.16 | 3.98 | 3.98 | 3.98 | -2.69% | 24,620 |
| Jun 8, 2026 | 3.98 | 4.10 | 3.92 | 4.09 | 4.09 | 2.76% | 22,982 |
| Jun 5, 2026 | 4.04 | 4.08 | 3.92 | 3.98 | 3.98 | -2.09% | 19,678 |
| Jun 4, 2026 | 3.99 | 4.10 | 3.99 | 4.07 | 4.07 | 0.62% | 15,431 |
| Jun 3, 2026 | 4.07 | 4.08 | 3.99 | 4.04 | 4.04 | -0.74% | 15,968 |
| Jun 2, 2026 | 4.16 | 4.25 | 4.05 | 4.07 | 4.07 | -3.78% | 27,577 |
| Jun 1, 2026 | 4.08 | 4.24 | 3.98 | 4.23 | 4.23 | 3.68% | 38,305 |
| May 29, 2026 | 4.02 | 4.16 | 4.02 | 4.08 | 4.08 | 0.12% | 14,230 |
| May 28, 2026 | 4.06 | 4.15 | 4.03 | 4.08 | 4.08 | 1.37% | 12,835 |
| May 27, 2026 | 4.15 | 4.20 | 4.02 | 4.02 | 4.02 | -4.06% | 20,228 |
| May 26, 2026 | 3.97 | 4.26 | 3.97 | 4.19 | 4.19 | 5.54% | 48,686 |
| May 22, 2026 | 4.15 | 4.19 | 3.97 | 3.97 | 3.97 | -3.64% | 35,813 |
| May 21, 2026 | 4.00 | 4.12 | 3.87 | 4.12 | 4.12 | 3.00% | 17,731 |