- Simpson Manufacturing Co., Inc.
- Simulations Plus, Inc.
- Sinclair Broadcast Group, Inc.
- Singular Genomics Systems, Inc.
- Singularity Future Technology Ltd.
- Sint
- Siri
- Sirius International Insurance Group, Ltd.
- Sirius XM Holdings Inc.
- Sisi
- Sitc
- Site
- SiteOne Landscape Supply, Inc.
- Sitm
- Six
- Six Flags Entertainment Corporation
- Sixth Street Specialty Lending, Inc.
- Sjm
- Sjw
- Skechers U.S.A., Inc.
- Skgr
- Skgru
- Skil
- Skin
- Sklz
- Skt
- Skwd
- Skx
- Sky
- SkyWater Technology, Inc.
- SkyWest, Inc.
- Skye
- Skye Bioscience, Inc.
- Skyh
- Skylight Health Group Inc.
- Skyline Champion Corporation
- Skyt
- Skyw
- Skyworks Solutions, Inc.
- Skyx
- Slab
- Slb
- Slca
- Sldb
- Sldp
- Sle
- Sleep Number Corporation
- Slg
- Slgn
- Slm
- Slnd
- Slng
- Slnh
- Slno
- Slp
- Slqt
- Slrc
- Slrn
- Slrx
- Sls
- Slvm
- Sm
- Smar
- SmartFinancial, Inc.
- Smart Powerr Corp.
- Smart Sand, Inc.
- Smart for Life, Inc.
- Smartsheet Inc.
- Smbc
- Smbk
- Smci
- Smfl
- Smg
- Smhi
- Smid
- Smith-Midland Corporation
- Smith & Wesson Brands, Inc.
- Smith Micro Software, Inc.
- Smlp
- Smlr
- Smmt
- Smp
- Smpl
- Smr
- Smrt
- Smsi
- Smtc
- Smti
- Smtk
- Smxt
- Sna
- Snal
- Snap
- Snap-on Incorporated
- Snap Inc.
- Snap One Holdings Corp.
- Snax
- Snbr
- Sncr
- Sncy
- Snd
- Snda
- Sndr
- Sndx
- Snes
- Snex
- Snfca
- Sngx
- Snoa
- Snow
- Snowflake Inc.
- Snpo
- Snps
- Snpx
- Snse
- Snti
- Snv
- Snx
- So
- Soar
- Sobr
- Soc
- Society Pass Incorporated
- Socket Mobile, Inc.
- Sofi
- Soho
- Soho House & Co Inc.
- Soi
- Sol
- SolarEdge Technologies, Inc.
- SolarWinds Corporation
- Solaris Oilfield Infrastructure, Inc.
- Solid Biosciences Inc.
- Solitario Zinc Corp.
- Solo Brands, Inc.
- Son
- Sond
- Sonic Automotive, Inc.
- Sonida Senior Living, Inc.
- Sonim Technologies, Inc.
- Sonm
- Sonn
- Sono
- Sono-Tek Corporation
- Sonoco Products Company
- Sonos, Inc.
- Sopa
- Sotera Health Company
- Sotk
- Soun
- Sound Financial Bancorp, Inc.
- SouthState Corporation
- South Plains Financial, Inc.
- Southern California Bancorp
- Southern Copper Corporation
- Southern First Bancshares, Inc.
- Southern Missouri Bancorp, Inc.
- Southern States Bancshares, Inc.
- Southside Bancshares, Inc.
- Southwest Airlines Co.
- Southwest Gas Holdings, Inc.
- Sovereign Community Bank (formerly known as Thomasville Bank), Inc.
- Sowg
- SpartanNash Company
- Spb
- Spce
- Spectrum Brands Holdings, Inc.
- Spero Therapeutics, Inc.
- Spfi
- Spg
- Spgc
- Spgi
- Sph
- Sphere 3D Corp.
- Sphr
- Spir
- Spirit AeroSystems Holdings, Inc.
- Spirit Airlines, Inc.
- Spkl
- Spklu
- Splp
- Spnt
- Spok
- Spok Holdings, Inc.
- Sportsman's Warehouse Holdings, Inc.
- Spr
- Sprb
- SpringWorks Therapeutics, Inc.
- Sprinklr, Inc.
- Spro
- Sprout Social, Inc.
- Sprouts Farmers Market, Inc.
- Spru
- Spruce Biosciences, Inc.
- Spry
- Spsc
- Spt
- Sptn
- Spwh
- Spxc
- Sq
- Sqft
- Sqsp
- Squarespace, Inc.
- Sr
- Srbk
- Srce
- Srcl
- Srdx
- Sre
- Srfm
- Srg
- Sri
- Srm
- Srpt
- Srrk
- Srts
- Srzn
- Ssb
- Ssbk
- Ssd
- Sskn
- Ssnc
- Ssp
- Ssrm
- Ssss
- Sst
- Ssti
- Sstk
- Ssy
- St
- Staa
- Stabilis Solutions, Inc.
- Staf
- Staffing 360 Solutions, Inc.
- Stag
- Stagwell Inc.
- Standard Biotools Inc.
- Standard Motor Products, Inc.
- Standex International Corporation
- Starbucks Corporation
- Starwood Property Trust, Inc.
- Stba
- Stc
- Stcn
- Ste
- Steel Connect, Inc.
- Steel Dynamics, Inc.
- Steelcase Inc.
- Stel
- Stellus Capital Investment Corporation
- Stem
- Step
- StepStone Group Inc.
- Stepan Company
- Ster
- Sterling Bancorp, Inc.
- Sterling Check Corp.
- Sterling Infrastructure, Inc.
- Steven Madden, Ltd.
- Stewart Information Services Corporation
- Stgw
- Stho
- Sti
- Stim
- Stitch Fix, Inc.
- Stkl
- Stks
- Stld
- Stock Yards Bancorp, Inc.
- Stok
- Stoke Therapeutics, Inc.
- Stoneridge, Inc.
- Str
- Stra
- Strata Skin Sciences, Inc.
- Strategic Education, Inc.
- Stratus Properties Inc.
- Strawberry Fields REIT Inc.
- Streamline Health Solutions, Inc.
- Stride, Inc.
- Strl
- Strm
- Stro
- Strong Global Entertainment, Inc.
- Stronghold Digital Mining, Inc.
- Strr
- Strs
- Strt
- Structure Therapeutics Inc.
- Strw
- Stryker Corporation
- Stss
- Stt
- Sttk
- Sturm, Ruger & Company, Inc.
- Stwd
- Stx
- Stxs
- Stz
- Suburban Propane Partners, L.P.
- Sui
- Sum
- Summit Materials, Inc.
- Summit Midstream Partners, LP
- Summit Therapeutics Inc.
- Sun
- SunCoke Energy, Inc.
- SunLink Health Systems, Inc.
- SunOpta Inc.
- Sun Country Airlines Holdings, Inc.
- Sundance Energy Inc.
- Sunnova Energy International Inc.
- Sunoco LP
- Sunrun Inc.
- Sup
- Super League Gaming, Inc.
- Super Micro Computer, Inc.
- Superior Drilling Products, Inc.
- Superior Group of Companies, Inc.
- Superior Industries International, Inc.
- Supernus Pharmaceuticals, Inc.
- Supn
- Surg
- Surgery Partners, Inc.
- Surmodics, Inc.
- Sutro Biopharma, Inc.
- Svc
- Svii
- Sviiu
- Svra
- Svv
- Swag
- Swbi
- Swi
- Swim
- Swk
- Swkh
- Swks
- Swtx
- Swx
- Sxi
- Sxt
- Sxtp
- Sybt