| | COB N-S Physical Peak (bilateral) | Electricity | IEPA | |
| | COB S-N Physical Peak (bilateral) | Electricity | IEPA | |
| CL | | Coca-Cola HBC AG | Single Stock Options | IFLO | |
| CC1 | | Cocoa 1-Month Calendar Spread Option | Cocoa | IFUS | |
| CC2 | | Cocoa 2-Month Calendar Spread Option | Cocoa | IFUS | |
| CC | | Cocoa Options | Cocoa | IFUS | |
| KC1 | | Coffee "C" 1-Month Calendar Spread Option | Coffee | IFUS | |
| KC2 | | Coffee "C" 2-Month Calendar Spread Option | Coffee | IFUS | |
| AC | | Coffee "C"® Metric Options | Coffee | IFUS | |
| KC | | Coffee C ® Options | Coffee | IFUS | |
| C20 | | CoinDesk 20 Index Futures | CoinDesk Indices | IFUS | |
| CD5 | | CoinDesk 5 Index Future | CoinDesk Indices | IFUS | |
| CDB | | CoinDesk Bitcoin Futures | CoinDesk Indices | IFUS | |
| BNB | | CoinDesk BNB Futures | CoinDesk Indices | IFUS | |
| CDE | | CoinDesk Ether Futures | CoinDesk Indices | IFUS | |
| CDS | | CoinDesk Solana Index Futures | CoinDesk Indices | IFUS | |
| CDX | | CoinDesk XRP Futures | CoinDesk Indices | IFUS | |
| CPG | | Compass Group PLC | Single Stock Options | IFLO | |
| TMF | | Condensate Diff - ICE C5 1A Index Future | Crude Oil and Refined Products | IFED | |
| CTT | | Connecticut Compliance Renewable Energy Certificate Class I Future | Physical Environmental | IFED | |
| XNQ | | Consumers Physical Basis LD1 | Natural Gas | IEPA | |
| XNM | | Consumers Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XNL | | Consumers Physical Fixed Price Spot | Natural Gas | IEPA | |
| XNO | | Consumers Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XNN | | Consumers Physical Gas Daily Spot | Natural Gas | IEPA | |
| XNP | | Consumers Physical Inside FERC | Natural Gas | IEPA | |
| CVR | | Consumers Swing Future | Natural Gas | IFED | |
| FAN | | Container FFA - Asia to North Europe 40GP/HC (NYFI) Future | Container Freight | IFEU | |
| FAW | | Container FFA - Asia to US West Coast 40GP/HC (NYFI) Future | Container Freight | IFEU | |
| FNE | | Container FFA - North Europe to US East Coast 40GP/HC (NYFI) Future | Container Freight | IFEU | |
| CP1 | | CORSIA Eligible Emissions Units (2024-2026) Futures | Emissions | IFEU | |
| CP1 | | CORSIA Eligible Emissions Units (2024-2026) Options | Emissions | IFEU | |
| CP2 | | CORSIA Eligible Emissions Units (2027-2029) Futures | Emissions | IFEU | |
| CP2 | | CORSIA Eligible Emissions Units (2027-2029) Options | Emissions | IFEU | |
| CT1 | | Cotton No. 2 1-Month Calendar Spread Option | Cotton | IFUS | |
| CT2 | | Cotton No. 2 2-Month Calendar Spread Option | Cotton | IFUS | |
| CT | | Cotton No. 2 Options | Cotton | IFUS | |
| YD9 | | Cove Point Physical Basis LD1 | Natural Gas | IEPA | |
| YD7 | | Cove Point Physical Fixed Price Daily | Natural Gas | IEPA | |
| YD8 | | Cove Point Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YD6 | | Cove Point Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YD5 | | Cove Point Physical Gas Daily Spot | Natural Gas | IEPA | |
| JFJ | | CPC Blend CIF (Platts) Balmo Future | Crude Oil and Refined Products | IFEU | |
| JFI | | CPC Blend CIF (Platts) Future | Crude Oil and Refined Products | IFEU | |
| CRM | | CRH PLC (UK) | Single Stock Options | IFLO | |
| CD5 | | Croda International Plc | Single Stock Options | IFLO | |
| AS | | Cross Currency Pairs Australian Dollar/Canadian Dollar Futures | Cross Rates | IFUS | |
| YA | | Cross Currency Pairs Australian Dollar/Japanese Yen Futures | Cross Rates | IFUS | |
| AR | | Cross Currency Pairs Australian Dollar/New Zealand Dollar Futures | Cross Rates | IFUS | |
| QA | | Cross Currency Pairs British Pound Sterling/Australian Dollar Futures | Cross Rates | IFUS | |