| RS | | Canola Options | Canola | IFUS | |
| TCC | | Capesize Timecharter (Baltic) Freight Future | Dry Freight | IFEU | |
| CPI | | Capita PLC | Single Stock Options | IFLO | |
| CNG | | Capricorn Energy plc | Single Stock Options | IFLO | |
| POC | | Carnival PLC | Single Stock Options | IFLO | |
| CTR | | Centrica PLC | Single Stock Options | IFLO | |
| XLE | | CG Mainline Physical Basis LD1 | Natural Gas | IEPA | |
| XLB | | CG Mainline Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XLA | | CG Mainline Physical Fixed Price Spot | Natural Gas | IEPA | |
| XLD | | CG Mainline Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XLC | | CG Mainline Physical Gas Daily Spot | Natural Gas | IEPA | |
| XLF | | CG Mainline Physical Inside FERC | Natural Gas | IEPA | |
| CON | | CG Onshore Basis Future | Natural Gas | IFED | |
| CVG | | CG Onshore Index Future | Natural Gas | IFED | |
| XLK | | CG Onshore Physical Basis LD1 | Natural Gas | IEPA | |
| XLH | | CG Onshore Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XLG | | CG Onshore Physical Fixed Price Spot | Natural Gas | IEPA | |
| XLJ | | CG Onshore Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XLI | | CG Onshore Physical Gas Daily Spot | Natural Gas | IEPA | |
| XLL | | CG Onshore Physical Inside FERC | Natural Gas | IEPA | |
| CVH | | CG Onshore Swing Future | Natural Gas | IFED | |
| CGB | | CG-Mainline Basis Future | Natural Gas | IFED | |
| CGA | | CG-Mainline Fixed Price Future | Natural Gas | IFED | |
| CGI | | CG-Mainline Index Future | Natural Gas | IFED | |
| CGR | | CG-Mainline Swing Future | Natural Gas | IFED | |
| CVQ | | Cheyenne Hub Swing Future | Natural Gas | IFED | |
| XNX | | Cheyenne Physical Basis LD1 | Natural Gas | IEPA | |
| XNT | | Cheyenne Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XNS | | Cheyenne Physical Fixed Price Spot | Natural Gas | IEPA | |
| XNV | | Cheyenne Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XNU | | Cheyenne Physical Gas Daily Spot | Natural Gas | IEPA | |
| XNW | | Cheyenne Physical Inside FERC | Natural Gas | IEPA | |
| DGD | | Chicago Basis Future | Natural Gas | IFED | |
| ETC | | Chicago Ethanol Future | Biofuels | IFED | |
| CFB | | Chicago Fixed Price Future | Natural Gas | IFED | |
| CIS | | Chicago Index Future | Natural Gas | IFED | |
| CSS | | Chicago Swing Future | Natural Gas | IFED | |
| CRI | | CIG Rockies Basis Future | Natural Gas | IFED | |
| CRA | | CIG Rockies Fixed Price Future | Natural Gas | IFED | |
| CRC | | CIG Rockies Index Future | Natural Gas | IFED | |
| CRS | | CIG Rockies Swing Future | Natural Gas | IFED | |
| TCY | | Clean FFA - Arab Gulf to Japan (Platts) Future | Wet Freight | IFEU | |
| T7B | | Clean FFA - Arab Gulf to Japan 75kt (Platts) Balmo Future | Wet Freight | IFEU | |
| T75 | | Clean FFA - Arab Gulf to Japan 75kt (Platts) Future | Wet Freight | IFEU | |
| WCY | | Clean FFA - Cross Mediterranean (Platts) Balmo Future | Wet Freight | IFEU | |
| WNB | | Clean FFA - UK Continent to US Atlantic Coast (Platts) Balmo Future | Wet Freight | IFEU | |
| WGB | | Clean FFA - US Gulf Coast to UK Continent (Platts) Balmo Future | Wet Freight | IFEU | |
| WCX | | Clean FFA – Cross Mediterranean (Platts) Future | Wet Freight | IFEU | |
| CBO | | Close Brothers Group | Single Stock Options | IFLO | |
| | COB N-S Physical Off-Peak (bilateral) | Electricity | IEPA | |