| Abbreviation | Definition |
|---|---|
| CNKS | Cenkos Sec |
| CNMI | Camper & Nic. |
| CNN | Caledonian Trust, P.L.C. |
| CNR | Condor Res. |
| CNSD | China Steel Gds |
| COB | Cobham |
| COB | Cobham, P.L.C. common stock |
| COD | Compagnie de Saint-Gobain Ordinary shares |
| COD | Saint Gobain Or |
| COL | Colliers International UK, PLC |
| COLT | Colt Group S.A. (de-listed) |
| COLT | Colt Group S.A. (de-listed) |
| COLT | Colt Grp S.a. |
| COM | Bnp Par Comac |
| COMS | Coms |
| CON | Connemara |
| COO | Coolabi |
| COP | Circle Oil |
| COP | Circle Oil (de-listed) |
| COP | Circle Oil (de-listed) |