| MIS | | Malin Index Future | Natural Gas | IFED | |
| XGI | | Malin Physical Basis LD1 | Natural Gas | IEPA | |
| XGJ | | Malin Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XGN | | Malin Physical Fixed Price Spot | Natural Gas | IEPA | |
| XGK | | Malin Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XGO | | Malin Physical Gas Daily Spot | Natural Gas | IEPA | |
| XGL | | Malin Physical Natural Gas Intelligence | Natural Gas | IEPA | |
| MSS | | Malin Swing Future | Natural Gas | IFED | |
| EMG | | Man Group Plc | Single Stock Options | IFLO | |
| MDK | | Marine Fuel 0.5% FOB Med Cargoes vs Marine Fuel 0.5% FOB Rotterdam Barges Swap | Crude Oil and Refined | ICES | |
| MF3 | | Marine Fuel 0.5% FOB Rotterdam Barge Swap | Crude Oil and Refined | ICES | |
| MF5 | | Marine Fuel 0.5% FOB Rotterdam Barges vs Fuel Oil 3.5% FOB Rotterdam Barges Swap | Crude Oil and Refined | ICES | |
| MF4 | | Marine Fuel 0.5% FOB Singapore Swap | Crude Oil and Refined | ICES | |
| | Markit ® iBoxx® EUR Corporates | Credit | ICES | |
| | Markit ® iBoxx® EUR Liquid High Yield | Credit | ICES | |
| | Markit ® iBoxx® USD Liquid High Yield | Credit | ICES | |
| | Markit ® iBoxx® USD Liquid Investment Grade | Credit | ICES | |
| | Markit CDX EM EX-EU | Credit | ICES | |
| | Markit CDX® North American High Yield Index Options | Credit | ICES | |
| | Markit CDX® North American High Yield Index Tranche | Credit | ICES | |
| | Markit CDX® North American Investment Grade Index Options | Credit | ICES | |
| | Markit CDX® North American Investment Grade Index Tranche | Credit | ICES | |
| | Markit CDX.EM | Credit | ICES | |
| | Markit CDX.NA.HY | Credit | ICES | |
| | Markit CDX.NA.IG | Credit | ICES | |
| | Markit CDX.NA.IG.HIVOL | Credit | ICES | |
| | Markit iTraxx Asia Ex-Japan | Credit | ICES | |
| | Markit iTraxx Australia | Credit | ICES | |
| | 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 | |