- MRTPY — Marston's PLC
- MRU.TO — Metro Inc.
- MRVGF — Mirvac Group
- MRVI — Maravai LifeSciences Holdings, Inc.
- MRVL — Marvell Technology, Inc.
- MRVL.V — Marvel Biosciences Corp.
- MRVSY — Minerva S.A.
- MRVU — Direxion Daily MRVL Bull 2X ETF
- MRX — Marex Group plc Ordinary Shares
- MRZ.AX — Mont Royal Resources Limited
- MRZ.V — Mirasol Resources Ltd.
- MRZLF — Mirasol Resources Ltd.
- MRZM — Marizyme, Inc.
- MS — Morgan Stanley
- MS-PL — Morgan Stanley
- MS-PO — Morgan Stanley
- MS-PP — Morgan Stanley
- MS-PQ — Morgan Stanley
- MSA — MSA Safety Incorporated
- MSA.TO — Mineros S.A.
- MSADF — MS&AD Insurance Group Holdings, Inc.
- MSADY — MS&AD Insurance Group Holdings, Inc.
- MSAH — Man Shing Agricultural Holdings, Inc.
- MSAI — MultiSensor AI Holdings, Inc.
- MSAIW — MultiSensor AI Holdings, Inc.
- MSB — Mesabi Trust
- MSB.AX — Mesoblast Limited
- MSBB — Mercer Bancorp, Inc.
- MSBC — Mission Bancorp
- MSBHF — Mitsubishi Corporation
- MSBI — Midland States Bancorp, Inc.
- MSBIP — Midland States Bancorp, Inc.
- MSBM — MSB Global Capital Corp.
- MSBN — Messaben Corp.
- MSBT — Morgan Stanley Bitcoin Trust ETF
- MSC — Studio City International Holdings Limited
- MSCI — MSCI Inc.
- MSCL.TO — Satellos Bioscience Inc.
- MSDL — Morgan Stanley Direct Lending Fund
- MSET — Madison Sports & Entertainment Inc.
- MSEX — Middlesex Water Company
- MSEXP — Middlesex Water Company PFD 7%
- MSFD — Direxion Daily MSFT Bear 1X Shares
- MSFH.TO — Harvest Microsoft High Income Shares ETF
- MSFL — GraniteShares 2x Long MSFT Daily ETF
- MSFO — YieldMax MSFT Option Income Strategy ETF
- MSFT — Microsoft Corporation
- MSFT.NE — Microsoft Corporation
- MSFU — Direxion Daily MSFT Bull 2X Shares
- MSFW — Roundhill Investments - MSFT WeeklyPay ETF
- MSFX — T-Rex 2X Long Microsoft Daily Target ETF
- MSFY — Kurv Yield Premium Strategy Microsoft (MSFT) ETF
- MSFY.NE — MICROSOFT (MSFT) YIELD SHARES PURPOSE ETF
- MSGE — Madison Square Garden Entertainment Corp.
- MSGM — Motorsport Games Inc.
- MSGNF — Man Sang International Limited
- MSGP — MedSmart Group Inc.
- MSGS — Madison Square Garden Sports Corp.
- MSGY — Masonglory Limited Ordinary Shares
- MSI — Motorola Solutions, Inc.
- MSIF — MSC Income Fund, Inc.
- MSIU — Medical Supply International USA, Inc.
- MSLE — Satellos Bioscience Inc.
- MSLOF — Mitsui O.S.K. Lines, Ltd.
- MSLOY — Mitsui O.S.K. Lines, Ltd.
- MSM — MSC Industrial Direct Co., Inc.
- MSMGF — Grid Metals Corp.
- MSMKF — MatsukiyoCocokara & Co.
- MSMR — McElhenny Sheffield Managed Risk ETF
- MSMY — MC Endeavors, Inc.
- MSN — Emerson Radio Corp.
- MSNVF — Mission Ready Solutions Inc.
- MSOL — Morgan Stanley Solana Trust
- MSOS — AdvisorShares Pure US Cannabis ETF
- MSOX — AdvisorShares MSOS Daily Leveraged ETF
- MSPC — Metrospaces, Inc.
- MSPR — MSP Recovery, Inc.
- MSR — GraniteShares Autocallable MSTR ETF
- MSR.V — Minsud Resources Corp.
- MSRM — Mushrooms Inc
- MSS — Maison Solutions Inc. Class A Common Stock
- MSSAF — Metal Sky Star Acquisition Corporation
- MSSE — Morgan Stanley Ethereum Trust
- MSSMY — MISUMI Group Inc.
- MSST — YieldMax MSTR Performance & Distribution Target 25 ETF
- MST — Leveraged Long + Income MSTR ETF
- MSTB — LHA Market State Tactical Beta ETF
- MSTE.TO — Harvest Strategy Inc. Enhanced High Income Shares ETF
- MSTH — Mystic Holdings, Inc.
- MSTI — Madison Short Term Strategic Income ETF
- MSTO — Masterbeat Corporation
- MSTP — GraniteShares 2x Long MSTR Daily ETF
- MSTQ — LHA Market State Tactical Q ETF
- MSTR — Strategy Inc
- MSTU — T-REX 2X Long MSTR Daily Target ETF
- MSTW — Roundhill Investments - MSTR WeeklyPay ETF
- MSTX — Daily Target 2X Long MSTR ETF
- MSTXF — Madoro Metals Corp.
- MSTY — YieldMax MSTR Option Income Strategy ETF
- MSTZ — T-REX 2X Inverse MSTR Daily Target ETF
