- SHUFF — Shufersal Ltd
- SHUNF — Shunfeng International Clean Energy Limited
- SHV — iShares 01 Year Treasury Bond ETF
- SHV.AX — Select Harvests Limited
- SHVLF — Starcore International Mines Ltd.
- SHVTF — Select Harvests Limited
- SHW — The Sherwin-Williams Company
- SHWDF — Resonac Holdings Corporation
- SHWDY — Resonac Holdings Corporation
- SHWGF — Shandong Weigao Group Medical Polymer Company Limited
- SHWGY — Shandong Weigao Group Medical Polymer Company Limited
- SHWZ — Medicine Man Technologies, Inc.
- SHXWF — Xinhua Winshare Publishing and Media Co., Ltd.
- SHY — iShares 1-3 Year Treasury Bond ETF
- SHYD — VanEck Short High Yield Muni ETF
- SHYG — iShares 0-5 Year High Yield Corporate Bond ETF
- SHYL — Xtrackers Short Duration High Yield Bond ETF
- SHYM — iShares Short Duration High Yield Muni Active ETF
- SHZHY — Shenzhou International Group Holdings Limited
- SHZNF — Shenzhen Expressway Corporation Limited
- SHZNY — Shenzhen Expressway Corporation Limited
- SI — Shoulder Innovations, Inc.
- SIA.TO — Sienna Senior Living Inc.
- SIBN — SI-BONE, Inc.
- SICO.V — Silverco Mining Ltd.
- SICP — Silvergate Capital Corporation
- SID — Companhia Siderúrgica Nacional
- SIDU — Sidus Space, Inc.
- SIEB — Siebert Financial Corp.
- SIEGY — Siemens AG
- SIELF — Shanghai Electric Group Company Limited
- SIELY — Shanghai Electric Group Company Limited
- SIEN.V — Sienna Resources Inc.
- SIERF — Sierra Grande Minerals Inc.
- SIETY — D'Ieteren Group S.A.
- SIEVF — D'Ieteren Group S.A.
- SIF — SIFCO Industries, Inc.
- SIFI — Harbor Scientific Alpha Income ETF (SIFI)
- SIFY — Sify Technologies Limited
- SIG — Signet Jewelers Limited
- SIG.AX — Sigma Healthcare Limited
- SIG.V — Sitka Gold Corp.
- SIGA — SIGA Technologies, Inc.
- SIGCY — SIG Group AG
- SIGI — Selective Insurance Group, Inc.
- SIGIP — Selective Insurance Group, Inc.
- SIGL — Signal Advance, Inc.
- SIGO — Sunset Island Group, Inc.
- SIGY — Sigyn Therapeutics, Inc.
- SIHBY — Shenzhen Investment Holdings Bay Area Development Company Limited
- SIHY — Harbor Scientific Alpha High-Yield ETF (SIHY)
- SII — Sprott Inc.
- SII.TO — Sprott Inc.
- SIJ — ProShares - UltraShort Industrials
- SIL — Global X - Silver Miners ETF
- SILC — Silicom Ltd.
- SILDF — Sintokogio,Ltd.
- SILEF — Silver Elephant Mining Corp.
- SILJ — Amplify Junior Silver Miners ETF
- SILLF — Sarine Technologies Ltd.
- SILO — Silo Pharma, Inc.
- SILS — Silver Scott Mines, Inc.
- SILV.V — Silver Valley Metals Corp.
- SILXF — Silex Systems Limited
- SILXY — Silex Systems Limited
- SIM — Grupo Simec, S.A.B. de C.V.
- SIMA — SIM Acquisition Corp. I
- SIMAU — SIM Acquisition Corp. I Unit
- SIMAW — SIM Acquisition Corp. I
- SIMC — Simclar, Inc.
- SIMEF — Sime Darby Property Berhad
- SIMO — Silicon Motion Technology Corporation
- SIMPQ — Simply, Inc.
- SIMS — State Street SPDR S&P Kensho Intelligent Structures ETF
- SIMTF — SIM Technology Group Limited
- SINC — Sincerity Applied Materials Holdings Corp.
- SIND — Sinda Ltd.
- SING — SinglePoint Inc.
- SINGF — Singapore Airlines Limited
- SINGY — Singapore Airlines Limited
- SINT — Sintx Technologies, Inc.
- SINX — Sionix Corp.
- SIO — Touchstone Strategic Income ETF
- SIO.AX — Simonds Group Limited
- SIOLF — Sino-Ocean Group Holding Limited
- SIOLY — Sino-Ocean Group Holding Limited
- SION — Sionna Therapeutics, Inc.
- SIOO — VistaShares Target 15TM S&P 100 Distribution ETF
- SIOPF — Shimao Group Holdings Limited
- SIPC — Sipp Industries, Inc.
- SIPN — SIPP International Industries, Inc.
- SIQ.AX — Smartgroup Corporation Ltd
- SIRC — Solar Integrated Roofing Corporation
- SIREF — Sirios Resources Inc.
- SIRI — Sirius XM Holdings Inc.
- SIS.AX — Simble Solutions Limited
- SIS.TO — Savaria Corporation
- SISAF — Sipef N.V.
- SISI — Shineco, Inc.
- SISXF — Savaria Corporation