Stock Taper
| DATE | TYPE | RATIO |
|---|---|---|
| 2009-12-02 | Forward | 2:1 |
| 2001-11-06 | Forward | 2:1 |
| 1981-08-26 | Forward | 3:2 |
| 1980-10-28 | Forward | 3:2 |
Koss Corporation designs, manufactures, and sells headphones and audio accessories globally through various channels, offering high-fidelity, wireless, noise-canceling, and specialty audio products since 1953.

Koss's 40th anniversary Porta Pro offers a wireless Bluetooth version with the original sound and design, plus over 20 hours of battery life, blending legacy and modern technology.
| Icon | PRODUCT | Q1-2023 |
|---|---|---|
![]() | Licensing | $33M |
| Map | REGION | Q1-2026 |
|---|---|---|
![]() | NonUS | $749.04K |
Overall rating: B-
| PEER | PRICE | |
|---|---|---|
SLNH | $1.11 | COMPARE |
ODYS | $3.78 | COMPARE |
UEIC | $4.52 | COMPARE |
TACT | $5.17 | COMPARE |
MKTW | $18.00 | COMPARE |
JG | $6.48 | COMPARE |
MFI | $9.18 | COMPARE |
NXTT | $6.02 | COMPARE |