sec filing
KO
NYSE · KOSS
Koss Corporation
Technology · Consumer Electronics
$3.59
Up+$0.06 (+1.70%)
Updated Sep 19, 2026, 4:18 AM
SID Score
2.8/10
Composite research score
Smart Money
—
Institutional and insider signal
- Market cap
- 44.66M
- P/E ratio
- -212.31
- Dividend yield
- 0.00%
- 52-week range
- $3.30 – $5.88
- Volume
- 29.65K
- Avg. volume
- 38.72K
Price performance
KOSS price history
1M range · 20 trading sessions · Daily adjusted prices
KOSS closed at $3.59 after 20 trading sessions, up 0.56% for the selected period.
- Last close
- $3.59
- Period change
- +0.56%
- Period low
- $3.36
- Period high
- $3.59
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Sep 18, 2026 | $3.54 | $3.62 | $3.42 | $3.59 | 29.65K |
| Sep 17, 2026 | $3.42 | $3.59 | $3.40 | $3.53 | 18.45K |
| Sep 16, 2026 | $3.43 | $3.475 | $3.3499 | $3.36 | 14.03K |
| Sep 15, 2026 | $3.62 | $3.62 | $3.374 | $3.40 | 5.67K |
| Sep 14, 2026 | $3.48 | $3.6237 | $3.4006 | $3.43 | 18.17K |
| Sep 11, 2026 | $3.39 | $3.6274 | $3.39 | $3.41 | 26.38K |
| Sep 10, 2026 | $3.47 | $3.475 | $3.30 | $3.40 | 9.51K |
| Sep 9, 2026 | $3.50 | $3.50 | $3.43 | $3.46 | 7.36K |
| Sep 8, 2026 | $3.60 | $3.60 | $3.475 | $3.55 | 8.99K |
| Sep 4, 2026 | $3.45 | $3.65 | $3.45 | $3.58 | 16.97K |
| Sep 3, 2026 | $3.57 | $3.57 | $3.41 | $3.5404 | 14.87K |
| Sep 2, 2026 | $3.45 | $3.53 | $3.41 | $3.50 | 25.36K |
| Sep 1, 2026 | $3.43 | $3.5455 | $3.3701 | $3.44 | 20.34K |
| Aug 31, 2026 | $3.51 | $3.60 | $3.40 | $3.46 | 12.7K |
| Aug 28, 2026 | $3.45 | $3.65 | $3.38 | $3.50 | 21.28K |
| Aug 27, 2026 | $3.4001 | $3.51 | $3.3733 | $3.42 | 32.38K |
| Aug 26, 2026 | $3.465 | $3.5499 | $3.40 | $3.435 | 17.39K |
| Aug 25, 2026 | $3.50 | $3.5235 | $3.40 | $3.45 | 17.23K |
| Aug 24, 2026 | $3.545 | $3.5887 | $3.50 | $3.50 | 14.97K |
| Aug 21, 2026 | $3.50 | $3.6099 | $3.50 | $3.57 | 16.45K |
Latest KOSS news
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