- MAGE — Magellan Gold Corporation
- MAGG — Madison Aggregate Bond ETF
- MAGMF — Magma Silver Corp.
- MAGN — Magnera Corp.
- MAGS — Roundhill Magnificent Seven ETF
- MAGX — Roundhill Investments - Daily 2X Long Magnificent Seven ETF
- MAGY — Roundhill Magnificent Seven Covered Call ETF
- MAH.AX — Macmahon Holdings Limited
- MAHI — Monarch Services, Inc.
- MAHLY — MediPal Holdings Corporation
- MAHMF — Mahindra & Mahindra Limited
- MAHN — Mid-Atlantic Home Health Network, Inc.
- MAI.TO — Mining Americas Inc.
- MAIA — MAIA Biotechnology, Inc.
- MAIFF — Minera Alamos Inc.
- MAIN — Main Street Capital Corporation
- MAIR — Madison Air Solutions Corporation
- MAJCQ — Majestic Capital, Ltd.
- MAJI — Marijuana Inc.
- MAKAF — Hardcore Discoveries Ltd.
- MAKO — Mako Mining Corp Common Stock
- MAKSF — Marks and Spencer Group plc
- MAKSY — Marks and Spencer Group plc
- MAKX — ProShares - S&P Kensho Smart Factories ETF
- MAL.TO — Magellan Aerospace Corporation
- MALDF — Macau Legend Development Limited
- MALJF — Magellan Aerospace Corporation
- MALRF — Mineral Resources Limited
- MALRY — Mineral Resources Limited
- MAM.AX — Microequities Asset Management Group Limited
- MAMA — Mama's Creations, Inc.
- MAMB — Monarch Ambassador Income Index ETF
- MAMO — Massimo Group Common Stock
- MAMTF — MCAN Mortgage Corporation
- MAN — ManpowerGroup Inc.
- MAN.AX — Mandrake Resources Ltd
- MANE — Veradermics, Incorporated
- MANH — Manhattan Associates, Inc.
- MANI — Man Active Income ETF
- MANN.CN — Manning Ventures Inc.
- MANOF — Manolete Partners Plc
- MANU — Manchester United plc
- MANVF — Manning Ventures Inc.
- MANZF — Manz AG
- MAOIF — Manitou BF S.A.
- MAOMF — Maudore Minerals Ltd.
- MAP.AX — Microba Life Sciences Limited
- MAPGF — Mapletree Logistics Trust
- MAPIF — Mapletree Industrial Trust
- MAPP — Harbor Multi-Asset Explorer ETF (MAPP)
- MAPPF — ProStar Holdings Inc.
- MAPS — WM Technology, Inc.
- MAPS.V — ProStar Holdings Inc.
- MAPT — Maptelligent, Inc.
- MAQ.AX — Macquarie Technology Group Limited
- MAQAF — Atlas Arteria Limited
- MAR — Marriott International, Inc.
- MARA — Marathon Digital Holdings, Inc.
- MARI.TO — Marimaca Copper Corp.
- MARK — Remark Holdings, Inc.
- MARM — FT Vest U.S. Equity Max Buffer ETF - March
- MARO — YieldMax MARA Option Income Strategy ETF
- MARPS — Marine Petroleum Trust
- MART — AllianzIM U.S. Equity Buffer10 Mar ETF
- MARUF — Marubeni Corporation
- MARUY — Marubeni Corporation
- MARVF — Marvel Discovery Corp.
- MARW — AllianzIM U.S. Equity Buffer20 Mar ETF
- MARZ — TrueShares Structured Outcome (March) ETF
- MARZF — Marston's PLC
- MAS — Masco Corporation
- MASK — 3 E Network Technology Group Ltd Class A Ordinary Shares
- MASN — Maison Luxe, Inc.
- MASS — 908 Devices Inc.
- MASS.V — Masivo Silver Corp.
- MAT — Mattel, Inc.
- MAT.AX — Matsa Resources Limited
- MATA.V — Matador Technologies Inc.
- MATEF — Blockmate Ventures Inc.
- MATH — Metalpha Technology Holding Limited
- MATR.TO — Mattr Corp.
- MATV — Mativ Holdings, Inc.
- MATW — Matthews International Corporation
- MATX — Matson, Inc.
- MAU.TO — Montage Gold Corp.
- MAURF — Marui Group Co., Ltd.
- MAURY — Marui Group Co., Ltd.
- MAUSY — Matsui Securities Co., Ltd.
- MAUTF — Montage Gold Corp.
- MAVF — Matrix Advisors Value ETF
- MAWHF — Man Wah Holdings Limited
- MAWHY — Man Wah Holdings Limited
- MAX — MediaAlpha, Inc.
- MAX.V — Max Resource Corp.
- MAXI — Simplify Bitcoin Strategy PLUS Income ETF
- MAXQ.NE — Maritime Launch Services Inc.
- MAXQF — Maritime Launch Services Inc.
- MAXX.CN — Max Power Mining Corp.
- MAY.AX — Melbana Energy Limited
- MAYNF — Mayne Pharma Group Limited
