| | Markit iTraxx Corp CEEMEA | Credit | ICES | |
| | Markit iTraxx Crossover | Credit | ICES | |
| | Markit iTraxx Europe Main | Credit | ICES | |
| | Markit iTraxx Europe Senior Financials Index | Credit | ICES | |
| | Markit iTraxx Europe Subordinated Financials Index | Credit | ICES | |
| | Markit iTraxx Japan | Credit | ICES | |
| | Markit iTraxx Main HiVol | Credit | ICES | |
| | Markit ITraxx Sovx CEEMEA | Credit | ICES | |
| | Markit iTraxx Sovx CEEMEA® EXEU | Credit | ICES | |
| | Markit iTraxx® Crossover Index Options | Credit | ICES | |
| | Markit iTraxx® Crossover Index Tranche | Credit | ICES | |
| | Markit iTraxx® Europe Main Index Tranche | Credit | ICES | |
| | Markit iTraxx® Europe Main Options | Credit | ICES | |
| | Markit iTraxx® Europe Senior Financials Index Options | Credit | ICES | |
| 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 | |
| | Mead 230 Physical Off-Peak (bilateral) | Electricity | IEPA | |
| | Mead 230 Physical Peak (bilateral) | Electricity | IEPA | |
| I05 | | Medium BTP Future | Medium/Long Term Interest Rates | IFLL | |
| G05 | | Medium Bund Futures (Bobl) | Medium/Long Term Interest Rates | IFLL | |
| BFM | | Medium French Government Bond Future (OAT) | Medium/Long Term Interest Rates | IFLL | |
| H | | Medium Gilt Future | Medium/Long Term Interest Rates | IFLL | |
| S05 | | Medium Spanish Government Bond Future | Medium/Long Term Interest Rates | IFLL | |
| C05 | | Medium Swiss Confederation Bond Future | Medium/Long Term Interest Rates | IFLL | |
| MLR | | Melrose Industries Plc | Single Stock Options | IFLO | |
| BMO | | Methanol Outright - Argus Methanol FOB Rotterdam Barge Future | Biofuels | IFEU | |
| BMN | | Methanol T2 FOB Rotterdam (ICIS) Future | Biofuels | IFEU | |
| | Mich Hub Day Ahead Financial Peak (bilateral) | Electricity | IEPA | |
| | Mich Hub Real Time Financial Off-Peak (bilateral) | Electricity | IEPA | |
| | Mich Hub Real Time Financial Peak (bilateral) | Electricity | IEPA | |
| NMC | | Michcon Basis Future | Natural Gas | IFED | |
| FQM | | Michcon Fixed Price Future | Natural Gas | IFED | |
| NMI | | Michcon Index Future | Natural Gas | IFED | |
| XKD | | Michcon Physical Basis LD1 | Natural Gas | IEPA | |
| XKA | | Michcon Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XJZ | | Michcon Physical Fixed Price Spot | Natural Gas | IEPA | |
| XKC | | Michcon Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XKB | | Michcon Physical Gas Daily Spot | Natural Gas | IEPA | |
| XKE | | Michcon Physical Inside FERC | Natural Gas | IEPA | |
| NMS | | Michcon Swing Future | Natural Gas | IFED | |
| ATI | | Micro Asia Tech 30 Index Futures | IFSG Indices | IFSG | |
| MCB | | Micro CoinDesk Bitcoin Futures | Bitcoin | IFSG | |