Koss Corporation (KOSS)
Showing Closing Date Range from Oct 2 to Oct 30, 2026 compared to Sep 3 to Oct 1, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:koss.com
Current Period Close
$3.39
Oct 02, 2026 - Oct 30, 2026
Previous Period Close
$3.98
Sep 03, 2026 - Oct 01, 2026
Net Comparison Delta
$-0.59 (-14.82%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(21 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 30, 2026 | $3.39 | - | - | - |
| Oct 29, 2026 | $3.41 | - | - | - |
| Oct 28, 2026 | $3.43 | - | - | - |
| Oct 27, 2026 | $3.43 | Sep 29, 2026 | $3.98 | -13.82% |
| Oct 26, 2026 | $3.40 | Sep 28, 2026 | $4.08 | -16.67% |
| Oct 23, 2026 | $3.46 | Sep 25, 2026 | $4.00 | -13.62% |
| Oct 22, 2026 | $3.48 | Sep 24, 2026 | $4.20 | -17.14% |
| Oct 21, 2026 | $3.47 | Sep 23, 2026 | $3.95 | -12.15% |
| Oct 20, 2026 | $3.56 | Sep 22, 2026 | $3.50 | +1.71% |
| Oct 19, 2026 | $3.56 | Sep 21, 2026 | $3.47 | +2.59% |
| Oct 16, 2026 | $3.66 | Sep 18, 2026 | $3.59 | +1.95% |
| Oct 15, 2026 | $3.74 | Sep 17, 2026 | $3.53 | +5.95% |
| Oct 14, 2026 | $3.79 | Sep 16, 2026 | $3.36 | +12.80% |
| Oct 13, 2026 | $3.83 | Sep 15, 2026 | $3.40 | +12.65% |
| Oct 12, 2026 | $3.84 | Sep 14, 2026 | $3.43 | +11.95% |
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