KOSS is trading 5.95% up at $4.45, alongside gains in broader markets.
- KOSS closed at $4.20 on September 24, 2026. No company-specific announcement, earnings release, or filing dated September 25 was identified.
- Koss’s latest reported results were released August 27.
- Nasdaq futures were up 0.69% and the S&P 500 was up 0.44%. KOSS has also gained across several recent sessions, but no definitive catalyst was found.