| SID | National Steel |
| SIDU | Sidus Space |
| SIEB | Siebert Financial |
| SIF | Sifco Industries |
| SIFY | SIFY Technologies |
| SIG | Signet Jewelers |
| SIGA | SIGA Technologies |
| SIGEY | Sigenergy Technology |
| SIGI | Selective Insurance Group Pref |
| SIGY | Sigyn Therapeutics |
| SII | Sprott |
| SILA | Sila Realty Trust |
| SILC | Silicom |
| SILEF | Silver Elephant Mining |
| SILO | Silo Pharma |
| SIM | GRUPO SIMEC, S.A.B. de C.V. |
| SIMA | SIM Acquisition Corp. I Units · Warrants |
| SIMO | Silicon Motion Technology |
| SINC | Sincerity Applied Materials Holdings |
| SIND | Sinda |
| SINI | Sierra International Network |
| SINT | Sintx Technologies |
| SION | Sionna Therapeutics |
| SIREF | Sirios Resources |
| SIRI | Sirius XM Holdings |
| SISI | Shineco |
| SITC | SITE Centers |
| SITE | SiteOne Landscape Supply |
| SITIF | SITC International Holdings |
| SITKF | Sitka Gold |
| SITM | Sitime |
| SITS | Southern Its International |
| SIVR | abrdn Silver ETF Trust |
| SJ | Scienjoy Holding |
| SJM | J M Smucker |
| SJT | San Juan Basin Royalty Trust |
| SKAI | Sky Acquisition Group |
| SKAS | Saker Aviation Services |
| SKBBY | Sichuan Kelun-Biotech Biopharmaceutical |
| SKE | Skeena Resources |
| SKFG | Stark Focus Group |
| SKG | Smart Kreate Group |
| SKHY | SK hynix HXSCL |
| SKIL | Skillsoft Warrants |
| SKIN | SkinHealth Systems |
| SKKY | Skkynet Cloud Systems |
| SKLTF | Seek |
| SKM | SK Telecom |
| SKPJF | SKY Perfect JSAT Holdings |
| SKT | Tanger |
| SKTG | Skytech Orion Global CTGL |
| SKUB | Skubbs Holdings |
| SKVI | Skinvisible |
| SKWD | Skyward Specialty Insurance Group |
| SKY | Champion Homes |
| SKYA | SkyAI SKYAW · STSSW |
| SKYD | Skydance Warrants |
| SKYE | Skye Bioscience |
| SKYH | Sky Harbour Group Warrants |
| SKYI | Sky Century Investment SKYID |
| SKYQ | Sky Quarry |
| SKYT | SkyWater Technology |
| SKYW | Skywest |
| SKYX | SKYX Platforms |
| SLAB | Silicon Laboratories |
| SLAIY | Solai |
| SLAMF | Slam |
| SLB | SLB |
| SLBK | Skyline Bankshares |
| SLBT | SL Science Holding |
| SLDB | Solid Biosciences |
| SLDC | Solidus Communications |
| SLDE | Slide Insurance Holdings |
| SLDP | Solid Power Warrants |
| SLE | Super League Enterprise |
| SLF | Sun Life Financial SLFIF · SLFQF · SUNFF |
| SLFPY | Standard Life SLFPF |
| SLG | SL Green Realty Pref I |
| SLGB | Smart Logistics Global |
| SLGL | Sol-Gel Technologies |
| SLGN | Silgan Holdings |
| SLI | Standard Lithium |
| SLM | SLM Pref |
| SLMT | Brera Holdings |
| SLN | Silence Therapeutics SLNCF |
| SLND | Southland Holdings Warrants |
| SLNG | Stabilis Solutions |
| SLNH | Soluna Holdings Pref |
| SLNO | Soleno Therapeutics |
| SLOIF | Soitec |
| SLP | Simulations Plus |
| SLQT | SelectQuote |
| SLRC | SLR Investment |
| SLS | SELLAS Life Sciences Group |
| SLSN | Solesence |
| SLSR | Solaris Resources |
| SLTC | Siltrium Tech |
| SLTN | Silverton Energy |
| SLV | iShares Silver Trust |
| SLVM | Sylvamo |
| SLVO | Credit Suisse |
| SLXMY | Silex Microsystems Ab |
| SLXN | Silexion Therapeutics Warrants |
| SM | SM Energy |
| SMA | SmartStop Self Storage REIT |
| SMBC | Southern Missouri Bancorp |
| SMBK | Smartfinancial |
| SMC | Summit Midstream |
| SMCI | Super Micro Computer Pref |
| SMDRF | Sierra Madre Gold & Silver |
| SMERY | Siemens Energy SMEGF |
| SMFG | Sumitomo Mitsui Financial Group SMFNF |
| SMFSY | Sumitomo Forestry SMFRF |
| SMG | Scotts Miracle-gro |
| SMGSY | SMG Swiss Marketplace Group |
| SMHD | Bank Of Montreal |
| SMHI | SEACOR Marine Holdings |
| SMHU | Bank Of Montreal |
| SMID | Smith Midland |
| SMIO | Somitos |
| SMIP | Spectral Ip |
| SMJF | SMJ International Holdings |
| SMMNY | Siemens Healthineers SEMHF |
| SMMT | Summit Therapeutics |
| SMNR | Semnur Pharmaceuticals Warrants |
| SMOFF | Sonoro Gold |
| SMP | Standard Motor Products |
| SMPHY | SM Prime Holdings SPHXF |
| SMPL | Simply Good Foods |
| SMR | Nuscale Power |
| SMRT | SmartRent |
| SMSGY | Samsonite International SMSOF |
| SMSI | Smith Micro Software |
| SMTC | Semtech |
| SMTGF | SMA Solar Technology |
| SMTI | Sanara MedTech |
| SMTK | SmartKem |
| SMTOY | Sumitomo Electric Industries SMTOF |
| SMWB | Similarweb |
| SMX | SMX (Security Matters) Public Warrants |
| SMXT | SolarMax Technology |
| SN | SharkNinja |
| SNA | Snap-on |
| SNAL | Snail |
| SNAP | Snap |
| SNBH | Sentient Brands Holdings |
| SNBRQ | Sleep Number |
| SNCR | Synchronoss Technologies |
| SNCY | Sun Country Airlines Holdings |
| SND | Smart Sand |
| SNDA | Sonida Senior Living |
| SNDK | Sandisk |
| SNDL | SNDL |
| SNDR | Schneider National |
| SNDX | Syndax Pharmaceuticals |
| SNES | SenesTech |
| SNEVY | Sunevision Holdings SVNHF |
| SNEX | StoneX Group |
| SNFCA | Security National Financial |
| SNFI | Stark Novus Financial NRDE |
| SNGX | Soligenix |
| SNHIY | Sany Heavy Industries |
| SNIRF | Senior |
| SNN | Smith & Nephew SNNUF |
| SNNC | Sibannac |
| SNNF | Seneca Bancorp |
| SNNGF | PPX Mining |
| SNNRF | Sunrise Communications |
| SNOA | Sonoma Pharmaceuticals |
| SNOW | Snowflake |
| SNPMF | China Petroleum & Chemical |
| SNPS | Synopsys |
| SNPW | Sun Pacific Holding |
| SNRG | SusGlobal Energy |
| SNROY | Sanrio SNROF |
| SNSC | SunScout Holding |
| SNT | Senstar Technologies |
| SNTG | Sentage Holdings |
| SNTI | Senti Biosciences Holdings |
| SNTL | Sentinel Holdings |
| SNTUF | Santander UK STNDF |
| SNTW | Summit Networks |
| SNUS-PH | Santander Holdings USA |
| SNWV | SANUWAVE Health |
| SNX | TD Synnex |
| SNY | Sanofi SNYNF |
| SNYRQ | Synergy CHC SNYR |
| SO | Southern Units · SOJC · SOJD · SOJE · SOJF |
| SOAGY | Sartorius |
| SOAR | SOAR Ai Warrants |
| SOBO | South Bow |
| SOBR | SOBR Safe |
| SOC | Sable Offshore |
| SOCA | Solarius Capital Acquisition Units · Warrants |
| SOCGP | Southern California Gas SOCGM |
| SODI | Solitron Devices |
| SOEZ | Franklin Solana Trust |
| SOFI | SoFi Technologies |
| SOGP | Sound Group |
| SOHGY | Alsok SOHGF |
| SOHOO | Sotherly Hotels SOHOB · SOHON |
| SOHU | Sohu.com |
| SOLC | Canary Marinade Solana ETF |
| SOLS | Solstice Advanced Materials |
| SOLV | Solventum |
| SON | Sonoco Products |
| SONDQ | Sonder Holdings |
| SONG | Music Licensing |
| SONM | Dna X |
| SONO | Sonos |
| SONX | Sonendo |
| SONY | Sony Group SNEJF |
| SOPAQ | Society Pass SOPA |
| SOPH | SOPHiA GENETICS |
| SOR | Source Capital |
| SORA | AsiaStrategy |
| SORN | Soren Acquisition Units · Warrants |
| SOS | SOS |
| SOTGY | Sunny Optical Technology (Group) SNPTF |
| SOTK | Sono Tek |
| SOUD | Hacker Interstellar |
| SOUL | Soulpower Acquisition Units · Rights |
| SOUN | Soundhound Ai Warrants |
| SOWG | Sow Good |
| SOYB | Teucrium Commodity Trust |
| SPAI | Safe Pro Group |
| SPAUF | Spanish Mountain Gold |
| SPB | Spectrum Brands Holdings |
| SPCB | SuperCom |
| SPCE | Virgin Galactic Holdings |
| SPCX | Space Exploration Technologies |
| SPE | Special Opportunities Fund Pref C |
| SPED | Speed Group Holdings |
| SPEG | Silver Pegasus Acquisition Units · Rights |
| SPEX | Spectre Acquisition |
| SPFI | South Plains Financial |
| SPFX | Standard Premium Finance Holdings |
| SPG | Simon Property Group Pref J |
| SPGH | Smart Pointer Group Holdings |
| SPGI | S&P Global |
| SPGNY | Springer Nature AG & Co. KGaA SPGDF |
| SPH | Suburban Propane Partners |
| SPHCF | Sprott Physical Copper Trust |
| SPHL | Springview Holdings |
| SPHR | Sphere Entertainment |
| SPIIY | Spie SPIWF |
| SPIR | Spire Global |
| SPKLF | Spark I Acquisition SPKL · SPKUF · SPKWF · Units · Warrants |
| SPMC | Sound Point Meridian Capital SPMA · SPME |
| SPMEF | South Pacific Metals |
