| Abbreviation | Definition |
|---|---|
| CAS | A. M. Castle & Company |
| CAU | Canyon Resources Corporation |
| CAX | Commercial Assets, Inc., of Delaware |
| CAX | Commercial Assets, Incorporated (de-listed) |
| CAX | Commercial Assets, Incorporated (de-listed) |
| CBJ | Cambior, Inc. |
| CBK | Citizens First Financial Corporation (formerly Citizens Bank) |
| CBN | Cornerstone Bancorp, Inc. |
| CCF | Chase Corporation |
| CDI | CHESS Depository Interest |
| CDL | Citadel Holding Corporation |
| CDLA | Citadel Holding Corporation Class A |
| CDLA | Citadel Holding Corporation Class A (de-listed) |
| CDLA | Citadel Holding Corporation Class A (de-listed) |
| CDLB | Citadel Holding Corporation Class B |
| CDLB | Citadel Holding Corporation Class B (de-listed) |
| CDLB | Citadel Holding Corporation Class B (de-listed) |
| CDS | China Direct, Inc. |
| CDV | Consolidated Delivery Logistics, Inc. |
| CEF | Central Fund of Canada, LTD. |