- SCWO
- SCWX
- SCWorx Corp.
- SCYNEXIS, Inc.
- SCYX
- SD
- SDGR
- SDHC
- SDIG
- SDOT
- SDPI
- SEACOR Marine Holdings Inc.
- SEAT
- SEAT (SEAT, SEAT)
- SEB
- SEDA
- SEDA (SEDA, SEDA)
- SEDG
- SEE
- SEEL
- SEER
- SEIC
- SEI Investments Company
- SELF
- SELLAS Life Sciences Group, Inc.
- SEM
- SEMR
- SENEA
- SENEA (SENEA, SENEA)
- SENEB
- SENEB (SENEB, SENEB)
- SENS
- SER
- SERA
- SERV
- SES
- SES (SES, SES)
- SEZL
- SF
- SFBC
- SFBS
- SFIX
- SFM
- SFNC
- SFST
- SF (SF, SF)
- SG
- SGA
- SGBX
- SGC
- SGD
- SGE
- SGH
- SGHT
- SGLY
- SGMA
- SGMO
- SGMT
- SGN
- SGRP
- SGRY
- SGU
- SGU (SGU, SGU)
- SG Blocks, Inc.
- SHAK
- SHBI
- SHC
- SHCO
- SHCR
- SHCR (SHCR, SHCR)
- SHEN
- SHFS
- SHFS (SHFS, SHFS)
- SHIM
- SHLS
- SHO
- SHOO
- SHOT
- SHOT (SHOT, SHOT)
- SHO (SHO, SHO)
- SHPH
- SHW
- SHYF
- SI-BONE, Inc.
- SIBN
- SIDU
- SIEB
- SIF
- SIFCO Industries, Inc.
- SIG
- SIGA
- SIGA Technologies, Inc.
- SIGI
- SIGI (SIGI, SIGI)
- SILA
- SILK
- SILO
- SINT
- SIRI
- SISI
- SITC
- SITC (SITC, SITC)
- SITE
- SITM
- SIX
- SJM
- SJM (SJM, SJM)
- SJW
- SJW Group
- SKGR
- SKGRU
- SKGRU (SKGRU, SKGRU)
- SKGR (SKGR, SKGR)
- SKIL
- SKIL (SKIL, SKIL)
- SKIN
- SKIN (SKIN, SKIN)
- SKLZ
- SKLZ (SKLZ, SKLZ)
- SKT
- SKWD
- SKX
- SKY
- SKYE
- SKYH
- SKYH (SKYH, SKYH)
- SKYT
- SKYW
- SKYX
- SLAB
- SLB
- SLB (Schlumberger Limited)
- SLCA
- SLDB
- SLDP
- SLDP (SLDP, SLDP)
- SLE
- SLG
- SLGN
- SLG (SLG, SLG)
- SLM
- SLM (SLM, SLM)
- SLND
- SLND (SLND, SLND)
- SLNG
- SLNH
- SLNH (SLNH, SLNH)
- SLNO
- SLNO (SLNO, SLNO)
- SLP
- SLQT
- SLRC
- SLRC (SLRC, SLRC)
- SLRN
- SLRX
- SLS
- SLVM
- SM
- SMAR
- SMART Global Holdings, Inc.
- SMBC
- SMBK
- SMCI
- SMFL
- SMG
- SMHI
- SMID
- SMLP
- SMLR
- SMMT
- SMP
- SMPL
- SMPL (SMPL, SMPL)
- SMR
- SMRT
- SMR (SMR, SMR)
- SMSI
- SMTC
- SMTI
- SMTK
- SMXT
- SMX (Security Matters) Public Limited Company
- SMX (시큐리티 매터스) 퍼블릭 리미티드 컴퍼니
- SMX (시큐리티 매터스) 퍼블릭 리미티드 컴퍼니 (SMX (Security Matters) Public Limited Company, SMTK)
- SM Energy Company
- SNA
- SNAL
- SNAP
- SNAX
- SNAX (SNAX, SNAX)
- SNBR
- SNCR
- SNCR (SNCR, SNCR)
- SNCY
- SND
- SNDA
- SNDR
- SNDX
- SNES
- SNEX
- SNEX (SNEX, SNEX)
- SNFCA
- SNGX
- SNGX (SNGX, SNGX)
- SNOA
- SNOA (SNOA, SNOA)
- SNOW
- SNPO
- SNPS
- SNPX
- SNSE
- SNTI
- SNV
- SNV (SNV, SNV)
- SNX
- SO
- SOAR
- SOAR (SOAR, SOAR)
- SOBR
- SOBR Safe, Inc.
- SOC
- SOC (SOC, SOC)
- SOFI
- SOFI (SOFI, SOFI)
- SOHO
- SOHO (SOHO, SOHO)
- SOI
- SOL
- SOL (SOL, SOL)
- SON
- SOND
- SOND (SOND, SOND)
- SONM
- SONN
- SONN (SONN, SONN)
- SONO
- SOPA
- SOTK
- SOUN
- SOUN (SOUN, SOUN)
- SOWG
- SO (SO, SO)
- SPAR Group, Inc.
- SPB
- SPCE
- SPCE (SPCE, SPCE)
- SPFI
- SPG
- SPGC
- SPGI
- SPG (SPG, SPG)
- SPH
- SPHR
- SPIR
- SPIR (SPIR, SPIR)
- SPKL
- SPKLU
- SPKLU (SPKLU, SPKLU)
- SPKL (SPKL, SPKL)
- SPLP
- SPLP (SPLP, SPLP)
- SPNT
- SPNT (SPNT, SPNT)
- SPOK
- SPR
- SPRB
- SPRO
- SPRU
- SPRU (SPRU, SPRU)
- SPRY
- SPSC
- SPT
- SPTN
- SPWH
- SPXC
- SPX Corporation
- SQ
- SQFT
- SQFT (SQFT, SQFT)
- SQL Technologies Corp.
- SQSP
- SR
- SRBK
- SRCE
- SRCL
- SRCL (SRCL, SRCL)
- SRDX
- SRE
- SRE (SRE, SRE)
- SRFM
- SRG
- SRG (SRG, SRG)
- SRI
- SRM
- SRPT
- SRRK
- SRTS
- SRTS (SRTS, SRTS)
- SRZN
- SRZN (SRZN, SRZN)
- SR (SR, SR)
- SR Bancorp, Inc.
- SS&C Technologies Holdings, Inc.
- SSB
- SSBK
- SSD
- SSKN
- SSNC
- SSP
- SSRM
- SSR Mining Inc.
- SSSS
- SSSS (SSSS, SSSS)
- SST
- SSTI
- SSTK
- SST (SST, SST)
- SSY
- ST
- STAA
- STAAR Surgical Company
- STAF
- STAG
- STAG (STAG, STAG)
- STBA
- STC
- STCN
- STE
- STEL
- STEM
- STEM (STEM, STEM)
- STEP
- STER
- STERIS plc
- STGW
- STHO
- STI
- STIM
- STI (STI, STI)
- STKL
- STKS
- STLD
- STOK
- STR
- STRA