| JKM | | JKM LNG (PLATTS) Future | Liquified Natural Gas | IFEU | |
| JMA | | Johnson Matthey PLC | Single Stock Options | IFLO | |
| KTB | | Katy Basis Future | Natural Gas | IFED | |
| KTI | | Katy Index Future | Natural Gas | IFED | |
| KTS | | Katy Swing Future | Natural Gas | IFED | |
| KSS | | Kern Delivered Swing Future | Natural Gas | IFED | |
| KGF | | Kingfisher PLC | Single Stock Options | IFLO | |
| LS | | Land Securities Group PLC | Single Stock Options | IFLO | |
| LGE | | Legal And General Group PLC | Single Stock Options | IFLO | |
| TSB | | Lloyds Banking Group PLC | Single Stock Options | IFLO | |
| C1 | | London Cocoa 1-Month Calendar Spread Option | Cocoa | IFLX | |
| C2 | | London Cocoa 2-Month Calendar Spread Option | Cocoa | IFLX | |
| C | | London Cocoa Options | Cocoa | IFLX | |
| LSE | | London Stock Exchange Group PLC | Single Stock Options | IFLO | |
| 8LS | | London Stock Exchange Group plc Mini | Mini Single Stocks | IFLO | |
| I10 | | Long BTP Future | Medium/Long Term Interest Rates | IFLL | |
| G10 | | Long Bund Future | Medium/Long Term Interest Rates | IFLL | |
| EUI | | Long EU Bond Index Future | Medium/Long Term Interest Rates | IFLL | |
| BFL | | Long French Government Bond Future (OAT) | Medium/Long Term Interest Rates | IFLL | |
| S10 | | Long Spanish Government Bond Future | Medium/Long Term Interest Rates | IFLL | |
| C10 | | Long Swiss Confederation Bond Future | Medium/Long Term Interest Rates | IFLL | |
| UUM | | Low Sulphur Gasoil 1-Month Calendar Spread Options | Crude Oil and Refined Products | IFEU | |
| ULA | | Low Sulphur Gasoil 1st Line Future | Crude Oil and Refined Products | IFEU | |
| ULA | | Low Sulphur Gasoil Average Price Options | Crude Oil and Refined Products | IFEU | |
| UUB | | Low Sulphur Gasoil Bullet Future | Crude Oil and Refined Products | IFEU | |
| G | | Low Sulphur Gasoil, American-Style Options | Crude Oil and Refined Products | IFEU | |
| | Low Sulphur Gasoil/Brent Futures Crack | Crude Oil and Refined Products | IFEU | |
| | Low Sulphur Gasoil/Permian WTI Futures Crack | Crude Oil and Refined Products | IFEU | |
| WAT | | LPG (BLPG) FFA Middle East Gulf to East 44,000Mts (Baltic) Average Price Option | Wet Freight | IFEU | |
| WAV | | LPG (BLPG) FFA Middle East Gulf to East 44,000Mts (Baltic) Balmo Future | Wet Freight | IFEU | |
| WAT | | LPG (BLPG) FFA Middle East Gulf to East 44,000Mts (Baltic) Future | Wet Freight | IFEU | |
| WFA | | LPG (BLPG3) FFA Houston to Chiba (Baltic) Future | Wet Freight | IFEU | |
| MNG | | M&G PLC | Single Stock Options | IFLO | |
| NGI | | M-RETS Registered Renewable Energy Certificate from CRS Listed™ Wind Energy Facilities Back Half Specific Future | Physical Environmental | IFED | |
| NGH | | M-RETS Registered Renewable Energy Certificate from CRS Listed™ Wind Energy Facilities Front Half Specific Future | Physical Environmental | IFED | |
| MLN | | Malin Basis Future | Natural Gas | IFED | |
| MAF | | Malin Fixed Price Future | Natural Gas | IFED | |
| MIS | | Malin Index Future | Natural Gas | IFED | |
| MSS | | Malin Swing Future | Natural Gas | IFED | |
| EMG | | Man Group Plc | Single Stock Options | IFLO | |
| 8MZ | | Marks & Spencer Group plc Mini | Mini Single Stocks | IFLO | |
| M+S | | Marks And Spencer Group Plc | Single Stock Options | IFLO | |
| MDB | | Maryland Compliance Non-Black Liquor Non-Waste Renewable Energy Credit Tier 1 Future | Physical Environmental | IFED | |
| MDE | | Maryland Compliance Renewable Energy Credit Tier 1 Future | Physical Environmental | IFED | |
| MPY | | Maryland Compliance Renewable Energy Credit Tier 1 Prior Year Future | Physical Environmental | IFED | |
| MDX | | Maryland Solar Renewable Energy Credit Future | Physical Environmental | IFED | |
| MCL | | Massachusetts Compliance Renewable Energy Certificate Class I Future | Physical Environmental | IFED | |
| MS2 | | Massachusetts Solar Renewable Energy Certificate Carve Out II Future | Physical Environmental | IFED | |
| MBX | | Mead 230 Day-Ahead Off-Peak Fixed Price Future | Electricity | IFED | |
| MBW | | Mead 230 Day-Ahead Peak Fixed Price Future | Electricity | IFED | |