Koss Corporation (KOSS)
NASDAQ: KOSS · Real-Time Price · USD
4.300
-0.050 (-1.15%)
At close: Apr 28, 2026, 4:00 PM EDT
4.250
-0.050 (-1.16%)
After-hours: Apr 28, 2026, 6:05 PM EDT
Koss Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | 4.12 | 4.37 | 4.12 | 4.30 | 4.30 | -1.15% | 7,825 |
| 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 |
| Feb 12, 2026 | 4.39 | 4.48 | 4.30 | 4.33 | 4.33 | -1.59% | 15,950 |
| Feb 11, 2026 | 4.58 | 4.58 | 4.37 | 4.40 | 4.40 | -3.30% | 19,185 |
| Feb 10, 2026 | 4.61 | 4.65 | 4.55 | 4.55 | 4.55 | -0.66% | 23,335 |
| Feb 9, 2026 | 4.55 | 4.64 | 4.55 | 4.58 | 4.58 | -2.14% | 28,260 |
| Feb 6, 2026 | 4.61 | 4.75 | 4.56 | 4.68 | 4.68 | 2.41% | 19,118 |
| Feb 5, 2026 | 4.75 | 4.95 | 4.50 | 4.57 | 4.57 | -4.59% | 61,759 |
| Feb 4, 2026 | 4.60 | 4.84 | 4.60 | 4.79 | 4.79 | 3.79% | 19,089 |
| Feb 3, 2026 | 4.84 | 4.90 | 4.50 | 4.62 | 4.62 | -4.25% | 61,555 |
| Feb 2, 2026 | 4.32 | 4.85 | 4.31 | 4.82 | 4.82 | 11.32% | 105,279 |
| Jan 30, 2026 | 4.52 | 4.55 | 4.31 | 4.33 | 4.33 | -3.56% | 20,095 |
| Jan 29, 2026 | 4.35 | 4.73 | 4.33 | 4.49 | 4.49 | 3.22% | 99,522 |
| Jan 28, 2026 | 4.36 | 4.46 | 4.31 | 4.35 | 4.35 | -0.91% | 15,975 |
| Jan 27, 2026 | 4.51 | 4.52 | 4.32 | 4.39 | 4.39 | -2.44% | 21,818 |
| Jan 26, 2026 | 4.42 | 4.66 | 4.28 | 4.50 | 4.50 | 1.81% | 69,960 |
| Jan 23, 2026 | 4.52 | 4.69 | 4.41 | 4.42 | 4.42 | -1.56% | 26,716 |
| Jan 22, 2026 | 4.55 | 4.71 | 4.45 | 4.49 | 4.49 | -0.66% | 53,362 |
| Jan 21, 2026 | 4.32 | 4.52 | 4.32 | 4.52 | 4.52 | 5.61% | 29,045 |
| Jan 20, 2026 | 4.38 | 4.47 | 4.28 | 4.28 | 4.28 | -4.25% | 11,477 |
| Jan 16, 2026 | 4.45 | 4.56 | 4.35 | 4.47 | 4.47 | 1.82% | 46,328 |
| Jan 15, 2026 | 4.34 | 4.47 | 4.34 | 4.39 | 4.39 | 1.15% | 19,922 |
| Jan 14, 2026 | 4.31 | 4.46 | 4.25 | 4.34 | 4.34 | 0.46% | 21,713 |
| Jan 13, 2026 | 4.53 | 4.62 | 4.24 | 4.32 | 4.32 | -4.64% | 48,745 |
| Jan 12, 2026 | 4.34 | 4.68 | 4.34 | 4.53 | 4.53 | 3.66% | 46,422 |
| Jan 9, 2026 | 4.31 | 4.67 | 4.21 | 4.37 | 4.37 | 1.39% | 188,729 |
| Jan 8, 2026 | 4.21 | 4.37 | 4.21 | 4.31 | 4.31 | 0.70% | 47,776 |
| Jan 7, 2026 | 4.33 | 4.41 | 4.16 | 4.28 | 4.28 | - | 35,710 |
| Jan 6, 2026 | 4.45 | 4.65 | 4.28 | 4.28 | 4.28 | -4.46% | 124,396 |
| Jan 5, 2026 | 4.29 | 4.70 | 4.29 | 4.48 | 4.48 | 3.23% | 132,358 |
| Jan 2, 2026 | 4.16 | 4.40 | 4.15 | 4.34 | 4.34 | 4.83% | 31,425 |
| Dec 31, 2025 | 4.19 | 4.25 | 4.12 | 4.14 | 4.14 | -1.43% | 41,872 |
| Dec 30, 2025 | 4.30 | 4.42 | 4.20 | 4.20 | 4.20 | -2.55% | 43,367 |
| Dec 29, 2025 | 4.40 | 4.41 | 4.30 | 4.31 | 4.31 | -4.01% | 26,602 |
| Dec 26, 2025 | 4.46 | 4.49 | 4.41 | 4.49 | 4.49 | 0.67% | 16,859 |
| Dec 24, 2025 | 4.46 | 4.50 | 4.41 | 4.46 | 4.46 | -0.22% | 6,228 |
| Dec 23, 2025 | 4.40 | 4.50 | 4.36 | 4.47 | 4.47 | 1.13% | 25,997 |
| Dec 22, 2025 | 4.36 | 4.60 | 4.36 | 4.42 | 4.42 | 3.27% | 48,241 |
| Dec 19, 2025 | 4.50 | 4.64 | 4.26 | 4.28 | 4.28 | -5.73% | 72,117 |
| Dec 18, 2025 | 4.51 | 4.80 | 4.41 | 4.54 | 4.54 | 0.89% | 146,842 |
| Dec 17, 2025 | 4.51 | 4.62 | 4.41 | 4.50 | 4.50 | -0.22% | 40,164 |
| Dec 16, 2025 | 4.54 | 4.65 | 4.51 | 4.51 | 4.51 | -1.96% | 14,915 |
| Dec 15, 2025 | 4.62 | 4.65 | 4.50 | 4.60 | 4.60 | 0.44% | 32,669 |
| Dec 12, 2025 | 4.70 | 4.72 | 4.58 | 4.58 | 4.58 | -2.97% | 16,105 |
| Dec 11, 2025 | 4.62 | 4.76 | 4.61 | 4.72 | 4.72 | 1.51% | 12,625 |
| Dec 10, 2025 | 4.70 | 4.86 | 4.63 | 4.65 | 4.65 | -2.52% | 21,909 |
| Dec 9, 2025 | 4.59 | 4.77 | 4.59 | 4.77 | 4.77 | 3.92% | 24,813 |
| Dec 8, 2025 | 4.96 | 4.96 | 4.56 | 4.59 | 4.59 | -4.77% | 84,066 |
| Dec 5, 2025 | 4.89 | 4.90 | 4.82 | 4.82 | 4.82 | -0.62% | 19,066 |
| Dec 4, 2025 | 4.86 | 4.93 | 4.80 | 4.85 | 4.85 | -1.82% | 18,305 |
| Dec 3, 2025 | 4.90 | 4.97 | 4.81 | 4.94 | 4.94 | 0.82% | 21,745 |