Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
3.980
-0.085 (-2.09%)
At close: Jun 5, 2026, 4:00 PM EDT
3.950
-0.030 (-0.75%)
After-hours: Jun 5, 2026, 5:19 PM EDT
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jun 5, 2026 | 4.04 | 4.08 | 3.92 | 3.98 | 3.98 | -2.09% | 19,546 |
| Jun 4, 2026 | 3.99 | 4.10 | 3.99 | 4.07 | 4.07 | 0.62% | 15,303 |
| Jun 3, 2026 | 4.07 | 4.08 | 3.99 | 4.04 | 4.04 | -0.74% | 15,918 |
| Jun 2, 2026 | 4.16 | 4.25 | 4.05 | 4.07 | 4.07 | -3.78% | 26,856 |
| Jun 1, 2026 | 4.08 | 4.24 | 3.98 | 4.23 | 4.23 | 3.68% | 37,117 |
| 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% | 12,596 |
| May 27, 2026 | 4.15 | 4.20 | 4.02 | 4.02 | 4.02 | -4.06% | 20,011 |
| May 26, 2026 | 3.97 | 4.26 | 3.97 | 4.19 | 4.19 | 5.54% | 48,674 |
| May 22, 2026 | 4.15 | 4.19 | 3.97 | 3.97 | 3.97 | -3.64% | 35,613 |
| May 21, 2026 | 4.00 | 4.12 | 3.87 | 4.12 | 4.12 | 3.00% | 17,724 |
| May 20, 2026 | 3.92 | 4.10 | 3.86 | 4.00 | 4.00 | 1.91% | 17,246 |
| May 19, 2026 | 3.97 | 3.99 | 3.88 | 3.93 | 3.93 | -0.76% | 11,972 |
| May 18, 2026 | 3.96 | 4.03 | 3.86 | 3.96 | 3.96 | 2.46% | 14,215 |
| May 15, 2026 | 3.89 | 4.11 | 3.82 | 3.86 | 3.86 | -0.26% | 26,778 |
| May 14, 2026 | 3.81 | 3.95 | 3.81 | 3.87 | 3.87 | 1.84% | 13,556 |
| May 13, 2026 | 3.85 | 3.93 | 3.79 | 3.80 | 3.80 | -3.43% | 22,972 |
| May 12, 2026 | 3.85 | 3.94 | 3.75 | 3.94 | 3.94 | 0.90% | 35,225 |
| May 11, 2026 | 4.13 | 4.13 | 3.75 | 3.90 | 3.90 | -6.25% | 81,708 |
| May 8, 2026 | 4.22 | 4.32 | 4.13 | 4.16 | 4.16 | -0.53% | 21,359 |
| May 7, 2026 | 4.40 | 4.40 | 4.18 | 4.18 | 4.18 | -2.74% | 12,192 |
| May 6, 2026 | 4.36 | 4.45 | 4.30 | 4.30 | 4.30 | -2.38% | 13,946 |
| May 5, 2026 | 4.28 | 4.41 | 4.20 | 4.41 | 4.41 | 4.38% | 29,695 |
| May 4, 2026 | 4.42 | 4.57 | 4.20 | 4.22 | 4.22 | -3.21% | 33,419 |
| May 1, 2026 | 4.22 | 4.47 | 4.15 | 4.36 | 4.36 | 0.69% | 18,017 |
| Apr 30, 2026 | 4.19 | 4.33 | 4.11 | 4.33 | 4.33 | 3.59% | 10,373 |
| Apr 29, 2026 | 4.30 | 4.30 | 4.06 | 4.18 | 4.18 | -2.79% | 22,623 |
| Apr 28, 2026 | 4.12 | 4.37 | 4.12 | 4.30 | 4.30 | -1.15% | 8,141 |
| Apr 27, 2026 | 4.41 | 4.44 | 4.13 | 4.35 | 4.35 | -1.58% | 12,358 |
| Apr 24, 2026 | 4.54 | 4.56 | 4.26 | 4.42 | 4.42 | -1.34% | 28,648 |
| Apr 23, 2026 | 4.42 | 4.83 | 4.41 | 4.48 | 4.48 | 3.46% | 74,744 |
| Apr 22, 2026 | 4.18 | 4.45 | 4.15 | 4.33 | 4.33 | 2.36% | 67,837 |
| Apr 21, 2026 | 4.13 | 4.26 | 4.04 | 4.23 | 4.23 | 2.42% | 99,249 |
| Apr 20, 2026 | 4.13 | 4.19 | 3.99 | 4.13 | 4.13 | -0.96% | 34,549 |
| Apr 17, 2026 | 4.15 | 4.19 | 4.02 | 4.17 | 4.17 | 1.71% | 36,678 |
| Apr 16, 2026 | 4.19 | 4.26 | 4.07 | 4.10 | 4.10 | 1.99% | 53,188 |
| Apr 15, 2026 | 3.79 | 4.02 | 3.79 | 4.02 | 4.02 | 2.55% | 27,533 |
| Apr 14, 2026 | 3.82 | 3.92 | 3.82 | 3.92 | 3.92 | 1.55% | 9,865 |
| Apr 13, 2026 | 3.88 | 3.90 | 3.85 | 3.86 | 3.86 | - | 10,810 |
| Apr 10, 2026 | 3.88 | 3.88 | 3.84 | 3.86 | 3.86 | - | 5,648 |
| Apr 9, 2026 | 3.89 | 3.94 | 3.80 | 3.86 | 3.86 | 1.58% | 20,840 |
| Apr 8, 2026 | 3.85 | 4.00 | 3.70 | 3.80 | 3.80 | 0.80% | 24,371 |
| Apr 7, 2026 | 3.79 | 3.83 | 3.67 | 3.77 | 3.77 | -0.79% | 11,342 |
| Apr 6, 2026 | 3.64 | 3.89 | 3.64 | 3.80 | 3.80 | 3.26% | 12,063 |
| Apr 2, 2026 | 3.62 | 3.75 | 3.58 | 3.68 | 3.68 | -1.60% | 7,959 |
| Apr 1, 2026 | 3.69 | 3.83 | 3.69 | 3.74 | 3.74 | 4.47% | 12,809 |
| Mar 31, 2026 | 3.52 | 3.80 | 3.52 | 3.58 | 3.58 | 2.29% | 8,764 |
| Mar 30, 2026 | 3.67 | 3.67 | 3.50 | 3.50 | 3.50 | -2.78% | 21,841 |
| Mar 27, 2026 | 3.77 | 3.83 | 3.56 | 3.60 | 3.60 | -3.74% | 11,492 |
| Mar 26, 2026 | 3.95 | 3.96 | 3.73 | 3.74 | 3.74 | -4.84% | 17,673 |