Koss - 39 Year Stock Price History | KOSS

The latest closing stock price for Koss as of July 14, 2025 is 5.11.

  • An investor who bought $1,000 worth of Koss stock at the IPO in 1986 would have $10,840 today, roughly 11 times their original investment - a 6.54% compound annual growth rate over 39 years.
  • The all-time high Koss stock closing price was 64.00 on January 29, 2021.
  • The Koss 52-week high stock price is 11.84, which is 131.7% above the current share price.
  • The Koss 52-week low stock price is 4.00, which is 21.7% below the current share price.
  • The average Koss stock price for the last 52 weeks is 6.51.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Koss - 39 Year Stock Price History | KOSS

  • An investor who bought $1,000 worth of Koss stock at the IPO in 1986 would have $10,840 today, roughly 11 times their original investment - a 6.54% compound annual growth rate over 39 years.
  • The all-time high Koss stock closing price was 64.00 on January 29, 2021.
  • The Koss 52-week high stock price is 11.84, which is 131.7% above the current share price.
  • The Koss 52-week low stock price is 4.00, which is 21.7% below the current share price.
  • The average Koss stock price for the last 52 weeks is 6.51.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.