| Symbol | Name | Country | Exchange |
|---|---|---|---|
| AUVI | Applied UV, Inc. | US | NASDAQ |
| COHU | Cohu, Inc. | US | NASDAQ |
| FN | Fabrinet | US | NYSE |
| IIVIP | II-VI Incorporated - 6.00% Series A Mandatory Convertible Preferred Stock | US | NASDAQ |
| LEDS | SemiLEDS Corporation | US | NASDAQ |
| LITE | Lumentum Holdings Inc. | US | NASDAQ |
| NOVT | Novanta Inc. | US | NASDAQ |
| VREX | Varex Imaging Corporation | US | NASDAQ |
| AAIRF | American Aires Inc | US | OTC |
| BLFE | BioLife Sciences Inc | US | OTC |
| DYSL | Dynasil Cp America | US | OTC |
| KOGL | Kopp Glass Inc | US | OTC |
| LMGR | Light Management Group | US | OTC |
| MMTLP | Meta Materials Inc | US | OTC |
| SNPTF | Sunny Optical | US | OTC |
| STAEF | Stanley Electric CO Ord | US | OTC |
| STAEY | Stanley Electric Co. | US | OTC |
| TGOSY | Toyoda Gosei CO Ltd | US | OTC |
| UHOIF | Ushio Inc. | US | OTC |
| UVFT | Uv Flu Technologies | US | OTC |