Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
4.350
-0.070 (-1.58%)
At close: Apr 27, 2026, 4:00 PM EDT
4.470
+0.120 (2.76%)
Pre-market: Apr 28, 2026, 8:07 AM EDT
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 27, 2026 | 4.41 | 4.44 | 4.13 | 4.35 | 4.35 | -1.58% | 12,244 |
| Apr 24, 2026 | 4.54 | 4.56 | 4.26 | 4.42 | 4.42 | -1.34% | 27,618 |
| Apr 23, 2026 | 4.42 | 4.83 | 4.41 | 4.48 | 4.48 | 3.46% | 74,592 |
| Apr 22, 2026 | 4.18 | 4.45 | 4.15 | 4.33 | 4.33 | 2.36% | 50,990 |
| Apr 21, 2026 | 4.13 | 4.26 | 4.04 | 4.23 | 4.23 | 2.42% | 97,960 |
| Apr 20, 2026 | 4.13 | 4.19 | 3.99 | 4.13 | 4.13 | -0.96% | 31,922 |
| Apr 17, 2026 | 4.15 | 4.19 | 4.02 | 4.17 | 4.17 | 1.71% | 36,637 |
| Apr 16, 2026 | 4.19 | 4.26 | 4.07 | 4.10 | 4.10 | 1.99% | 53,185 |
| Apr 15, 2026 | 3.79 | 4.02 | 3.79 | 4.02 | 4.02 | 2.55% | 22,514 |
| 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 | - | 10,204 |
| Apr 10, 2026 | 3.88 | 3.88 | 3.84 | 3.86 | 3.86 | - | 5,628 |
| 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% | 24,370 |
| Apr 7, 2026 | 3.79 | 3.83 | 3.67 | 3.77 | 3.77 | -0.79% | 11,164 |
| Apr 6, 2026 | 3.64 | 3.89 | 3.64 | 3.80 | 3.80 | 3.26% | 12,024 |
| Apr 2, 2026 | 3.62 | 3.75 | 3.58 | 3.68 | 3.68 | -1.60% | 7,934 |
| Apr 1, 2026 | 3.69 | 3.83 | 3.69 | 3.74 | 3.74 | 4.47% | 12,748 |
| Mar 31, 2026 | 3.52 | 3.80 | 3.52 | 3.58 | 3.58 | 2.29% | 8,754 |
| Mar 30, 2026 | 3.67 | 3.67 | 3.50 | 3.50 | 3.50 | -2.78% | 21,802 |
| Mar 27, 2026 | 3.77 | 3.83 | 3.56 | 3.60 | 3.60 | -3.74% | 11,299 |
| Mar 26, 2026 | 3.95 | 3.96 | 3.73 | 3.74 | 3.74 | -4.83% | 17,673 |
| Mar 25, 2026 | 4.01 | 4.01 | 3.89 | 3.93 | 3.93 | -1.01% | 6,716 |
| Mar 24, 2026 | 4.01 | 4.06 | 3.95 | 3.97 | 3.97 | -1.00% | 19,569 |
| Mar 23, 2026 | 3.69 | 4.06 | 3.61 | 4.01 | 4.01 | 10.77% | 38,785 |
| Mar 20, 2026 | 3.95 | 3.95 | 3.61 | 3.62 | 3.62 | -7.18% | 46,052 |
| Mar 19, 2026 | 3.99 | 3.99 | 3.75 | 3.90 | 3.90 | -0.51% | 52,904 |
| Mar 18, 2026 | 3.95 | 4.00 | 3.92 | 3.92 | 3.92 | -1.01% | 9,838 |
| Mar 17, 2026 | 3.99 | 4.13 | 3.96 | 3.96 | 3.96 | 1.02% | 29,580 |
| Mar 16, 2026 | 3.98 | 4.06 | 3.91 | 3.92 | 3.92 | 0.26% | 27,042 |
| Mar 13, 2026 | 3.93 | 3.99 | 3.91 | 3.91 | 3.91 | -0.26% | 27,058 |
| Mar 12, 2026 | 4.05 | 4.09 | 3.90 | 3.92 | 3.92 | -3.92% | 34,302 |
| Mar 11, 2026 | 4.15 | 4.15 | 4.08 | 4.08 | 4.08 | -0.49% | 20,776 |
| Mar 10, 2026 | 4.05 | 4.19 | 4.05 | 4.10 | 4.10 | 0.99% | 14,899 |
| Mar 9, 2026 | 4.07 | 4.15 | 4.01 | 4.06 | 4.06 | -1.22% | 25,046 |
| Mar 6, 2026 | 4.06 | 4.15 | 4.06 | 4.11 | 4.11 | 0.98% | 11,053 |
| Mar 5, 2026 | 4.14 | 4.20 | 4.06 | 4.07 | 4.07 | -3.10% | 14,274 |
| Mar 4, 2026 | 4.14 | 4.21 | 4.13 | 4.20 | 4.20 | 0.72% | 11,444 |
| Mar 3, 2026 | 4.10 | 4.21 | 4.10 | 4.17 | 4.17 | 1.71% | 19,643 |
| Mar 2, 2026 | 4.12 | 4.16 | 4.06 | 4.10 | 4.10 | -0.73% | 8,321 |
| Feb 27, 2026 | 4.08 | 4.13 | 4.01 | 4.13 | 4.13 | 1.23% | 26,199 |
| Feb 26, 2026 | 4.18 | 4.22 | 4.08 | 4.08 | 4.08 | -2.39% | 17,526 |
| Feb 25, 2026 | 4.26 | 4.27 | 4.10 | 4.18 | 4.18 | -1.88% | 22,225 |
| Feb 24, 2026 | 4.19 | 4.33 | 4.19 | 4.26 | 4.26 | 1.91% | 11,622 |
| Feb 23, 2026 | 4.27 | 4.39 | 4.16 | 4.18 | 4.18 | -1.88% | 8,432 |
| Feb 20, 2026 | 4.16 | 4.35 | 4.13 | 4.26 | 4.26 | 2.16% | 13,134 |
| Feb 19, 2026 | 4.19 | 4.22 | 4.09 | 4.17 | 4.17 | 0.34% | 20,062 |
| Feb 18, 2026 | 4.16 | 4.29 | 4.14 | 4.16 | 4.16 | 0.14% | 19,329 |
| Feb 17, 2026 | 4.35 | 4.41 | 4.13 | 4.15 | 4.15 | -5.25% | 65,561 |
| Feb 13, 2026 | 4.34 | 4.46 | 4.30 | 4.38 | 4.38 | 1.15% | 10,111 |