| MSGY | Masonglory Ltd | Industrials | $3.5M | — | 0 |
| MMMW | Mass Megawatts Wind Power, Inc. | Utilities | $0.2M | — | 0 |
| MAMO | Massimo Group Common Stock | Consumer Cyclical | $39.1M | — | 0 |
| MTZ | MasTec, Inc. | Industrials | $17.0B | — | 0 |
| MHH | Mastech Digital, Inc. | Industrials | $86.6M | — | 0 |
| MB | MasterBeef Group | Consumer Cyclical | $68.8M | — | 0 |
| MBC | MasterBrand, Inc. | Consumer Cyclical | $910M | — | 0 |
| MA | Mastercard Incorporated | Financial Services | $496B | — | 0 |
| MCFT | MasterCraft Boat Holdings, Inc. | Consumer Cyclical | $493M | — | 0 |
| MTDR | Matador Resources Company | Energy | $6.6B | — | 0 |
| MTCH | Match Group, Inc. | Communication Services | $9.5B | — | 0 |
| MTRL | Material Resource Acquisition Corp. | — | — | — | 0 |
| MTLS | Materialise N.V. | Technology | $469M | — | 0 |
| MTRN | Materion Corporation | Basic Materials | $5.3B | — | 0 |
| MTNB | Matinas BioPharma Holdings, Inc. | Healthcare | $1.1M | — | 0 |
| MATV | Mativ Holdings, Inc. | Basic Materials | $671M | — | 0 |
| MTRX | Matrix Service Company | Industrials | $276M | — | 0 |
| MATX | Matson, Inc. | Industrials | $6.8B | — | 0 |
| MAT | Mattel, Inc. | Consumer Cyclical | $3.8B | — | 0 |
| MTTN | Matternet, Inc. | — | — | — | 0 |
| MATW | Matthews International Corporation | Industrials | $600M | — | 0 |
| MLP | Maui Land & Pineapple Company, Inc. | Real Estate | $319M | — | 0 |
| MXCT | MaxCyte, Inc. | Healthcare | $127M | — | 0 |
| MAXNQ | Maxeon Solar Technologies, Ltd. | — | — | — | 0 |
| MMS | Maximus, Inc. | Industrials | $2.8B | — | 0 |