- MLTX — MoonLake Immunotherapeutics
- MLX.AX — Metals X Limited
- MLXEF — Metals X Limited
- MLXSF — Melexis N.V.
- MLYBY — Malayan Banking Berhad
- MLYCF — Multi-Metal Development Ltd.
- MLYNF — Malayan Banking Berhad
- MLYS — Mineralys Therapeutics, Inc.
- MM1.AX — Midas Minerals Limited
- MM8.AX — Medallion Metals Limited
- MMA — Mixed Martial Arts Group Limited
- MMA.AX — Maronan Metals Limited
- MMA.V — Midnight Sun Mining Corp.
- MMATQ — Meta Materials Inc.
- MMCA — NYLI MacKay California Muni Intermediate ETF
- MMDDF — Mirriad Advertising plc
- MME.AX — MoneyMe Limited
- MMED — MiniMed Group, Inc. Common Stock
- MMET.V — Miata Metals Corp.
- MMEX — MMEX Resources Corporation
- MMG.V — Metallic Minerals Corp.
- MMHTF — Miramar Hotel and Investment Company, Limited
- MMI — Marcus & Millichap, Inc.
- MMI.AX — Metro Mining Limited
- MMILF — Metro Mining Limited
- MMIN — NYLI MacKay Muni Insured ETF
- MMIRF — MedMira Inc.
- MMIT — NYLI MacKay Muni Intermediate ETF
- MMJJF — Underwood Capital Limited
- MMK — State Street Prime Money Market ETF
- MMKT — Texas Capital Government Money Market ETF
- MML.AX — Mclaren Minerals Limited
- MMLP — Martin Midstream Partners L.P.
- MMLTF — MMG Limited
- MMM — 3M Company
- MMMA — NYLI MacKay Muni Allocation ETF
- MMMKF — Avenira Limited
- MMMM — Quad M Solutions, Inc.
- MMMRF — Mammoth Resources Corp.
- MMMW — Mass Megawatts Wind Power, Inc.
- MMND — Mastermind, Inc.
- MMNGF — Metallic Minerals Corp.
- MMNNF — Munters Group AB (publ)
- MMNT — Momentous Holdings Corp.
- MMR.AX — MEC Resources Limited
- MMRGF — Minaurum Gold Inc.
- MMS — Maximus, Inc.
- MMS.AX — McMillan Shakespeare Limited
- MMSC — First Trust Multi-Manager Small Cap Opportunities ETF
- MMSD — NYLI MacKay Muni Short Duration ETF
- MMSI — Merit Medical Systems, Inc.
- MMSMY — Mitsui Kinzoku Company, Limited
- MMTC — Micro Imaging Technology, Inc.
- MMTIF — Micromem Technologies Inc.
- MMTLF — Critical One Energy Inc.
- MMTM — State Street SPDR S&P 1500 Momentum Tilt ETF
- MMTMF — Monument Mining Limited
- MMTOF — Mitsubishi Motors Corporation
- MMTRS — Mills Music Trust
- MMTX — Miluna Acquisition Corp Class A Ordinary Share
- MMTXU — Miluna Acquisition Corp
- MMTXW — Miluna Acquisition Corp Warrant
- MMVVF — MultiMetaVerse Holdings Limited
- MMY.V — Monument Mining Limited
- MMYT — MakeMyTrip Limited
- MN.V — Manganese X Energy Corp.
- MNA — NYLI Merger Arbitrage ETF
- MNAP — MNP Petroleum Corporation
- MNARF — Morguard North American Residential Real Estate Investment Trust
- MNAT — Marquette National Corporation
- MNB.AX — Minbos Resources Limited
- MNBD — ALPS Intermediate Municipal Bond ETF
- MNBEF — MINEBEA MITSUMI Inc.
- MNBO — MNB Holdings Corporation
- MND.AX — Monadelphous Group Limited
- MNDO — MIND C.T.I. Ltd
- MNDP — Mundus Group, Inc.
- MNDR — Mobile-health Network Solutions Class A Ordinary Shares
- MNDY — monday.com Ltd.
- MNESP — MSA Safety Incorporated
- MNFSF — ManifestSeven Holdings Corporation
- MNG.CN — Mongoose Mining Ltd.
- MNGG — Mining Global Inc.
- MNGGF — Mongolia Growth Group Ltd.
- MNGPF — Man Group Limited
- MNHFF — Mayr-Melnhof Karton AG
- MNHVF — Mowi ASA
- MNII — Manati Industries, Inc.
- MNILY — Minor International Public Company Limited
- MNIZ — Gen 2 Technologies Inc.
- MNKD — MannKind Corporation
- MNLCF — Manulife Financial Corporation
- MNLXF — MiniLuxe Holding Corp.
- MNMB — Merchants & Marine Bancorp, Inc.
- MNMRF — Monumental Minerals Corp.
- MNNGF — Affluent Partners Holdings Limited
- MNO.TO — Meridian Mining UK Societas
- MNODF — Mondi plc
- MNOV — MediciNova, Inc.
- MNPP — Merchants' National Properties, Inc.
