| DKR | | Transco Zone 5 Basis Future | Natural Gas | IFED | |
| DKT | | Transco Zone 5 Index Future | Natural Gas | IFED | |
| T5B | | Transco Zone 5 South Basis Future | Natural Gas | IFED | |
| T5I | | Transco Zone 5 South Index Future | Natural Gas | IFED | |
| T5C | | Transco Zone 5 South Swing Future | Natural Gas | IFED | |
| DKS | | Transco Zone 5 Swing Future | Natural Gas | IFED | |
| TPB | | Transco Zone 6 (non NY) Basis Future | Natural Gas | IFED | |
| TPH | | Transco Zone 6 (non NY) Fixed Price Future | Natural Gas | IFED | |
| TPI | | Transco Zone 6 (non NY) Index Future | Natural Gas | IFED | |
| TPS | | Transco Zone 6 (non NY) Swing Future | Natural Gas | IFED | |
| TZS | | Transco Zone 6 (NY) Basis Future | Natural Gas | IFED | |
| NSI | | Transco Zone 6 (NY) Index Future | Natural Gas | IFED | |
| ZSS | | Transco Zone 6 (NY) Swing Future | Natural Gas | IFED | |
| TR5 | | Tritax Big Box REIT | Single Stock Options | IFLO | |
| TRL | | Trunkline LA Basis Future | Natural Gas | IFED | |
| TZA | | Trunkline Zone 1A Basis Future | Natural Gas | IFED | |
| CVU | | Trunkline Zone 1A Index Future | Natural Gas | IFED | |
| CVV | | Trunkline Zone 1A Swing Future | Natural Gas | IFED | |
| TLO | | Tullow Oil Plc | Single Stock Options | IFLO | |
| RHE | | Two Year Mid-Curve Option on PJM Tri Qualified Renewable Energy Certificate Class I Future (Futures Style Margining) | Physical Environmental | IFED | |
| EM2 | | Two year Mid-Curve Option On Three Month ESTR | Short Term Interest Rates | IFLL | |
| SY2 | | Two Year Mid-Curve Option on Three Month SONIA Index Future | Short Term Interest Rates | IFLL | |
| K2 | | Two Year Mid-Curve Options on Euribor ® Futures | Short Term Interest Rates | IFLL | |
| TWS | | TWO-YEAR € SWAPNOTE® FUTURES | Swapnotes | IFLL | |
| GBW | | TWO-YEAR £ SWAPNOTE® FUTURES | Swapnotes | IFLL | |
| USW | | Two-Year SOFR Swapnote Future | Swapnotes | IFLL | |
| UBL | | UK Base Electricity Future (Gregorian) | Electricity | IFEU | |
| T | | UK Feed Wheat Futures | Grains | IFLX | |
| T | | UK Feed Wheat Options | Grains | IFLX | |
| UKD | | UK NBP Natural Gas 1st Line Financial Futures (USD/MMBTU) | Natural Gas | IFEU | |
| UND | | UK NBP Natural Gas Daily Financial Futures (ICIS) | Natural Gas | IFEU | |
| NBD | | UK NBP Natural Gas Daily Future | Natural Gas | IFEU | |
| UNF | | UK NBP Natural Gas Last Day Financial Futures (USD/MMBTU) | Natural Gas | IFED | |
| UKF | | UK NBP Natural Gas Options (Futures Style Margin) | Natural Gas | IFEU | |
| UPL | | UK Peak Electricity Future (Gregorian) | Electricity | IFEU | |
| UBL / M | | UK Spark Spread | Electricity | IFEU | |
| DUK | | UKA Daily Futures | Emissions | IFEU | |
| UKA | | UKA Futures | Emissions | IFEU | |
| UKA | | UKA Options | Emissions | IFEU | |
| UK5 | | UKA UK Auction | Emissions | IFEU | |
| UCM | | ULSD 10ppm CIF Med Cargoes Future | Crude Oil and Refined Products | IFEU | |
| ULO | | ULSD 10ppm CIF NWE Cargoes Balmo Future | Crude Oil and Refined Products | IFEU | |
| ULN | | ULSD 10ppm CIF NWE Cargoes Future | Crude Oil and Refined Products | IFEU | |
| G30 | | Ultra Long Bund Future | Medium/Long Term Interest Rates | IFLL | |
| U | | Ultra Long Gilt Future | Medium/Long Term Interest Rates | IFLL | |
| ULO | | Unilever plc | Single Stock Options | IFLO | |
| ULV | | Unilever PLC Ex-Event | Single Stock Options | IFLO | |
| 8UL | | Unilever plc Mini | Mini Single Stocks | IFLO | |
| UG5 | | Unite Group | Single Stock Options | IFLO | |
| UUL | | United Utilities Plc | Single Stock Options | IFLO | |