| MESHU | Meshflow Acquisition Corp. - Units | | |
| MESHW | Meshflow Acquisition Corp. - Warrants | | |
| MESO | Mesoblast Limited - American Depositary Shares | | |
| META | Meta Platforms, Inc. - Class A Common Stock | | SP500 |
| METC | Ramaco Resources, Inc. - Class A Common Stock | | |
| METCB | Ramaco Resources, Inc. - Class B Common Stock | | |
| METCI | Ramaco Resources, Inc. - 8.250% Senior Notes due 2030 | | |
| METCZ | Ramaco Resources, Inc. - 8.375% Senior Notes due 2029 | | |
| MEVO | M Evo Global Acquisition Corp II - Class A Ordinary Shares | | |
| MEVOU | M Evo Global Acquisition Corp II - Units | | |
| MEVOW | M Evo Global Acquisition Corp II - Warrants | | |
| MF | MindForge Inc. - Class A Ordinary Shares | | |
| MFI | mF International Limited - Class A Ordinary Shares | | |
| MFIC | MidCap Financial Investment Corporation - Closed End Fund | | |
| MFICL | MidCap Financial Investment Corporation - 8.00% Notes due 2028 | | |
| MFIN | Medallion Financial Corp. - Common Stock | | |
| MFP | Midera Food Processing, Inc. - Common Stock | | |
| MGEE | MGE Energy Inc. - Common Stock | | |
| MGIH | Millennium Group International Holdings Limited - Ordinary Shares | | |
| MGN | Megan Holdings Limited - Class A Ordinary Shares | | |
| MGNI | Magnite, Inc. - Common Stock | | |
| MGNX | MacroGenics, Inc. - Common Stock | | |
| MGPI | MGP Ingredients, Inc. - Common Stock | | |
| MGRC | McGrath RentCorp - Common Stock | | |
| MGRT | Mega Fortune Company Limited - Ordinary Shares | | |
| MGRX | Mangoceuticals, Inc. - Common Stock | D | |
| MGTX | MeiraGTx Holdings plc - Ordinary Shares | | |
| MGX | Metagenomi Therapeutics, Inc. - Common Stock | | |
| MGYR | Magyar Bancorp, Inc. - Common Stock | | |
| MIAC | Meridian3 Industrials Acquisition Corp - Class A Ordinary Shares | | |
| MIACU | Meridian3 Industrials Acquisition Corp - Units | | |
| MIACW | Meridian3 Industrials Acquisition Corp - Warrant | | |
| MIDD | The Middleby Corporation - Common Stock | | |
| MIND | MIND Technology, Inc. - Common Stock | | |
| MIRA | MIRA Pharmaceuticals, Inc. - Common Stock | D | |
| MIRM | Mirum Pharmaceuticals, Inc. - common stock | | |
| MIST | Milestone Pharmaceuticals Inc. - Common Shares | | |
| MITK | Mitek Systems, Inc. - Common Stock | | |
| MKDW | MKDWELL Tech Inc. - Ordinary Shares | | |
| MKDWW | MKDWELL Tech Inc. - Warrants | | |
| MKLY | McKinley Acquisition Corporation - Class A Ordinary Shares | | |
| MKLYR | McKinley Acquisition Corporation - Rights | | |
| MKLYU | McKinley Acquisition Corporation - Units | | |
| MKSI | MKS Inc. - Common Stock | | |
| MKTW | MarketWise, Inc. - Class A Common Stock | | |
| MKTX | MarketAxess Holdings, Inc. - Common Stock | | |
| MKZR | MacKenzie Realty Capital, Inc. - Common Stock | | |
| MLAA | Mountain Lake Acquisition Corp. II - Class A Ordinary Shares | | |
| MLAAU | Mountain Lake Acquisition Corp. II - Units | | |
| MLAAW | Mountain Lake Acquisition Corp. II - Warrants | | |