- QRNNF — Aurizon Holdings Limited
- QRVO — Qorvo, Inc.
- QS — QuantumScape Corporation
- QSB.TO — Mackenzie Canadian Short-Term Bond Index ETF
- QSEA — Quartzsea Acquisition Corporation
- QSEAU — Quartzsea Acquisition Corporation Units
- QSEP — QS Energy, Inc.
- QSI — Quantum-Si incorporated
- QSIG — WisdomTree U.S. Short-Term Corporate Bond Fund
- QSML — WisdomTree U.S. SmallCap Quality Growth Fund
- QSP-UN.TO — Restaurant Brands International Limited Partnership
- QSPT — FT Vest Nasdaq-100 Buffer ETF - September
- QSPW — Quantum Solar Power Corp.
- QSR — Restaurant Brands International Inc.
- QSR.TO — Restaurant Brands International Inc.
- QST.V — Questor Technology Inc.
- QSU — Daily Target 2X Long QS ETF
- QTAP — Innovator Growth Accelerated Plus ETF
- QTCI — Quantum Capital Inc.
- QTEC — First Trust NASDAQ-100-Technology Sector Index Fund
- QTEX — QTREX Quantum Ltd.
- QTEYF — Questerre Energy Corporation
- QTGPF — Qt Group Oyj
- QTI — QT Imaging Holdings, Inc.
- QTIP.NE — Mackenzie US TIPS Index ETF (CAD-Hedged)
- QTJA — Innovator Growth Accelerated Plus ETF
- QTJL — Innovator Growth Accelerated Plus ETF
- QTOC — Innovator Growth Accelerated Plus ETF - October
- QTOP — iShares Nasdaq Top 30 Stocks ETF
- QTR — Global X - Nasdaq 100 Tail Risk ETF
- QTRH.TO — Quarterhill Inc.
- QTRHF — Quarterhill Inc.
- QTRX — Quanterix Corporation
- QTTB — Q32 Bio Inc.
- QTTOY — Qutoutiao Inc.
- QTUM — Quantum ETF
- QTWO — Q2 Holdings, Inc.
- QTWO.V — Q2 Metals Corp.
- QUAD — Quad/Graphics, Inc.
- QUAL — iShares MSCI USA Quality Factor ETF
- QUAL.AX — VanEck - MSCI International Quality ETF
- QUAN — Quantum International Corp.
- QUBHF — Qube Holdings Limited
- QUBSF — Qantas Airways Limited
- QUBT — Quantum Computing, Inc.
- QUCOF — Quálitas Controladora, S.A.B. de C.V.
- QUCT — Queen City Investments, Inc.
- QUCY — Quantum Cyber N.V.
- QUEXF — Q2 Metals Corp.
- QUIG.TO — Mackenzie US Investment Grade Corporate Bond Index ETF (CAD-Hedged)
- QUIK — QuickLogic Corporation
- QUILF — Quilter plc
- QUIZ — Zacks Quality International ETF
- QULL — ETRACS 2x Leveraged MSCI US Quality Factor TR ETN
- QUMS — Quantumsphere Acquisition Corp. Ordinary Shares
- QUMSR — Quantumsphere Acquisition Corp. Rights
- QUMSU — Quantumsphere Acquisition Corp. Units
- QURE — uniQure N.V.
- QURT — Quarta-Rad, Inc.
- QUS — State Street SPDR MSCI USA StrategicFactors ETF
- QUS.AX — BetaShares - S&P 500 Equal Weight ETF
- QUSA — VistaShares Target 15 USA Quality Income ETF
- QUTIF — Questor Technology Inc.
- QUU.TO — Mackenzie US Large Cap Equity Index ETF
- QVAL — Alpha Architect U.S. Quantitative Value ETF
- QVML — Invesco S&P 500 QVM Multi-factor ETF
- QVMM — Invesco S&P MidCap 400 QVM Multi-factor ETF
- QVMS — Invesco S&P SmallCap 600 QVM Multi-factor ETF
- QVMT — Invesco S&P 500 Concentrated QVM ETF
- QVOL — Infrastructure Capital Nasdaq Option Income ETF
- QVOY — Q3 All-Season Active Rotation ETF
- QWLD — State Street SPDR MSCI World StrategicFactors ETF
- QWTR — Quest Water Global, Inc.
- QXL — Quantum X Labs Inc.
- QXM.TO — CI Morningstar National Bank Québec Index ETF
- QXO — QXO, Inc.
- QXQ — SGI Enhanced Nasdaq 100 ETF
- QXR.AX — QX Resources Limited
- QYBX — Qian Yuan Baixing, Inc.
- QYLD — Global X - Nasdaq 100 Covered Call ETF
- QYLG — Global X - Nasdaq 100 Covered Call & Growth ETF
- QYOU.V — QYOU Media Inc.
- QYOUF — QYOU Media Inc.
- QZM.V — Quartz Mountain Resources Ltd.
- QZMRF — Quartz Mountain Resources Ltd.
- R — Ryder System, Inc.
- R8R.AX — Regener8 Resources NL
- RAA — SMI 3Fourteen REAL Asset Allocation ETF
- RAAA — Reckoner Yield Enhanced AAA CLO ETF
- RAAR — Reckoner Yield Enhanced AAA CLO Reinvesting ETF
- RAASY — Cloopen Group Holding Limited
- RAAX — VanEck Real Assets ETF
- RAAY — Reckoner Yield Enhanced AAA CLO Annual ETF
- RAC — Rithm Acquisition Corp.
- RAC.AX — Race Oncology Limited
- RACC — Research Alliance Corporation III Class A Ordinary Shares
- RACD — Research Alliance Corp. Iv
- RACE — Ferrari N.V.
- RAD.AX — Radiopharm Theranostics Limited
- RAD.CN — Radial Research Corp.