- ARBE — Arbe Robotics Ltd.
- ARBEW — Arbe Robotics Ltd.
- ARBFX — The Arbitrage Fund Class R
- ARBG — Aequi Acquisition Corp.
- ARBGU — Aequi Acquisition Corp.
- ARBGW — Aequi Acquisition Corp.
- ARBK — Argo Blockchain plc
- ARBKL — Argo Blockchain plc 8.75% Senior Notes due 2026
- ARC — ARC Document Solutions, Inc.
- ARCB — ArcBest Corporation
- ARCC — Ares Capital Corporation
- ARCE — Arco Platform Limited
- ARCFX — Water Island Credit Opportunities Fund Retail Class
- ARCH — Arch Resources, Inc.
- ARCH.V — Arch Biopartners Inc.
- ARCI — Archimedes Tech SPAC Partners III Co.
- ARCIU — Archimedes Tech SPAC Partners III Co. Units
- ARCIW — Archimedes Tech SPAC Partners III Co. Warrant
- ARCK — Arbor Rapha Capital Bioholdings Corp. I
- ARCKU — Arbor Rapha Capital Bioholdings Corp. I
- ARCKW — Arbor Rapha Capital Bioholdings Corp. I
- ARCL — ARC Group Acquisition I Corp Class A Ordinary Shares
- ARCLR — ARC Group Acquisition I Corp Right
- ARCLU — ARC Group Acquisition I Corp Unit
- ARCLW — ARC Group Acquisition I Corp Warrants
- ARCO — Arcos Dorados Holdings Inc.
- ARCP — Aristotle Funds Series Trust Core Plus Income ETF
- ARCT — Arcturus Therapeutics Holdings Inc.
- ARCVX — One Choice 2030 PortfolioOne Choice 2030 PortfolioOne Choice 2030 Portfolio
- ARD — Ardagh Group S.A.
- ARDC — Ares Dynamic Credit Allocation Fund, Inc.
- ARDEX — AMG River Road Dividend All Cap Value Fund - Class N
- ARDT — Ardent Health Partners, LLC
- ARDVX — One Choice 2040 PortfolioOne Choice 2040 PortfolioOne Choice 2040 Portfolio
- ARDX — Ardelyx, Inc.
- ARE — Alexandria Real Estate Equities, Inc.
- ARE.TO — Aecon Group Inc.
- AREA — Harbor AlphaEdge Next Generation REITs ETF (AREA)
- AREC — American Resources Corporation
- AREN — The Arena Group Holdings, Inc.
- ARES — Ares Management Corporation
- AREVX — One Choice 2055 PortfolioOne Choice 2055 PortfolioOne Choice 2055 Portfolio
- ARFFX — Ariel Focus Investor
- ARFVX — One Choice 2050 PortfolioOne Choice 2050 PortfolioOne Choice 2050 Portfolio
- ARG — Airgas Inc.
- ARG.TO — Amerigo Resources Ltd.
- ARGD — Argo Group US, Inc. 6.5% SR NTS 42
- ARGFX — Ariel Fund Investor
- ARGO — Argo Group International Holdings, Ltd.
- ARGS — Argos Therapeutics, Inc.
- ARGT — Global X - MSCI Argentina ETF
- ARGU — Argus Capital Corp.
- ARGUU — Argus Capital Corp.
- ARGUW — Argus Capital Corp.
- ARGVX — One Choice 2060 PortfolioOne Choice 2060 PortfolioOne Choice 2060 Portfolio
- ARGX — argenx SE
- ARHS — Arhaus, Inc.
- ARHVX — One Choice 2065 PortfolioOne Choice 2065 PortfolioOne Choice 2065 Portfolio
- ARI — Apollo Commercial Real Estate Finance, Inc.
- ARIA — ARIAD Pharmaceuticals, Inc.
- ARIC.V — Awalé Resources Limited
- ARII — American Railcar Industries, Inc.
- ARIS — Aris Water Solutions, Inc.
- ARIS.TO — Aris Mining Corporation
- ARIZ — Arisz Acquisition Corp.
- ARIZR — Arisz Acquisition Corp.
- ARIZU — Arisz Acquisition Corp.
- ARIZW — Arisz Acquisition Corp.
- ARK.V — Arras Minerals Corp.
- ARKO — Arko Corp.
- ARKOW — Arko Corp.
- ARKR — Ark Restaurants Corp.
- ARKVX — ARK Venture Fund
- ARL — American Realty Investors, Inc.
- ARLO — Arlo Technologies, Inc.
- ARLP — Alliance Resource Partners, L.P.
- ARLSX — AMG River Road International Value Equity Fund - Class N
- ARM — Arm Holdings plc American Depositary Shares
- ARMG — Leverage Shares 2x Long ARM Daily ETF
- ARMH — Arm Holdings PLC ADRhedged
- ARMK — Aramark
- ARMN — Aris Mining Corporation
- ARMP — Armata Pharmaceuticals, Inc.
- ARMR — Armor US Equity Index ETF
- ARMS — Aristotle Multi-Sector Income ETF
- ARMY — Tema International Defense Innovation ETF
- ARMZX — Western Asset Ultra-Short Income Fund Class A
- ARNA — Arena Pharmaceuticals, Inc.
- ARNC — Arconic Corporation
- AROC — Archrock, Inc.
- AROIX — One Choice 2045 PortfolioOne Choice 2045 PortfolioOne Choice 2045 Portfolio
- AROW — Arrow Financial Corporation
- ARP — PMV Adaptive Risk Parity ETF
- ARPO — Aerpio Pharmaceuticals, Inc.
- ARQ — Arq, Inc.
- ARQQ — Arqit Quantum Inc.
- ARQQW — Arqit Quantum Inc.
- ARQT — Arcutis Biotherapeutics, Inc.
- ARR — ARMOUR Residential REIT, Inc.
- ARR.TO — Altius Renewable Royalties Corp.
