| SIBN | SI Bone, Inc. | NASD |
| $SCUSD | Siacoin to US Dollar | CRYPT |
| SBSW | Sibanye Stillwater Ltd | NYSE |
| SICAGEN.IN | Sicagen India Ltd | NSE |
| SICAL.IN | Sical Logistics Ltd. | NSE |
| SDRC | Sidney Resources Corp | PINK |
| SIEB | Siebert Financial Corp. | NASD |
| SIEGY | Siemens AG | PINK |
| GCTAY | Siemens Gamesa Renewable Energy SA | PINK |
| GCTAF | Siemens Gamesa Renewable Energy, S.A. | PINK |
| SIEMENS.IN | Siemens Ltd. | NSE |
| SNNAQ | Sienna Biopharmaceuticals, Inc. | NASD |
| SIE.V | Sienna Resources Inc. | TSXV |
| SIA.TO | Sienna Senior Living Inc. | TSE |
| SIEN | Sientra, Inc. | NASD |
| SIRAX | Sierra Core Retirement Fund | USMF |
| SIRIX | Sierra Core Retirement Fund | USMF |
| SIRRX | Sierra Core Retirement Fund | USMF |
| SIRZX | Sierra Core Retirement Fund | USMF |
| SMTS | Sierra Metals Inc. | AMEX |
| SMT.TO | Sierra Metals Inc.. | TSE |
| SRRA | Sierra Oncology, Inc. | NASD |
| SSICX | Sierra Strategic Income Fund | USMF |
| SSIRX | Sierra Strategic Income Fund | USMF |
| SSIZX | Sierra Strategic Income Fund | USMF |
| STBJX | Sierra Tactical Bond Fund | USMF |
| SW.TO | Sierra Wireless, Inc. | TSE |
| SWIR | Sierra Wireless, Inc. | NASD |
| SIF | SIFCO Industries, Inc. | AMEX |
| SIFY | Sify Technologies Ltd. | NASD |
| SHI.L | Sig | LSE |
| SIGA | SIGA Technologies, Inc. | NASD |
| SGTX | Sigilon Therapeutics Inc. | NASD |
| SGLB | Sigma Labs, Inc. | NASD |
| SGMA.V | Sigma Lithium Resources Corp. | TSXV |
| SGMA | SigmaTron Intl, Inc. | NASD |
| SIGL | Signal Advance Inc. | PINK |
| SIG.L | Signature Aviation | LSE |
| SBNY | Signature Bank | NASD |
| SGU.V | Signature Resources Ltd. | TSXV |
| SIGIND.IN | Signet Industries Ltd | NSE |
| SIG | Signet Jewelers Ltd. | NYSE |
| SGFY | Signify Health Inc. | NYSE |
| SILINV.IN | SIL Investments Ltd | NSE |
| SLN.L | Silence Therapeutics | LSE |
| SLGN | Silgan Holdings, Inc. | NASD |
| SILC | Silicom Ltd. | NASD |
| SLAB | Silicon Laboratories, Inc. | NASD |
| SIMO | Silicon Motion Technology Corp. ADS | NASD |
| SILK | Silk Road Medical, Inc. | NASD |
| SILO | SILO Pharma Inc. | PINK |
| ^SIJ21 | Silver - Apr 2021 (EOD) | CME |
| $SILVER | Silver - Continuous Contract (EOD) | CME |
| ^SIZ21 | Silver - Dec 2021 (EOD) | CME |
| ^SIZ22 | Silver - Dec 2022 (EOD) | CME |
| ^SIZ23 | Silver - Dec 2023 (EOD) | CME |
| ^SIF22 | Silver - Jan 2022 (EOD) | CME |
| ^SIN21 | Silver - Jul 2021 (EOD) | CME |
| ^SIH21 | Silver - Mar 2021 (EOD) | CME |
| ^SIH22 | Silver - Mar 2022 (EOD) | CME |
| ^SIK21 | Silver - May 2021 (EOD) | CME |
| ^SIU21 | Silver - Sep 2021 (EOD) | CME |
| ^SIU22 | Silver - Sep 2022 (EOD) | CME |
| SBR.TO | Silver Bear Resources Inc. | TSE |
| SVB.TO | Silver Bull Resources, Inc. | TSE |
| SVBL | Silver Bull Resources, Inc. | PINK |
| SLCRU | Silver Crest Acquisition Corp. | NASD |
| !SCIDOW | Silver Cross DJ Industrials Index | INDX |
| !SCIDJT | Silver Cross DJ Transports Index | INDX |
| !SCIDJU | Silver Cross DJ Utilities Index | INDX |
| !SCIGDX | Silver Cross Gold Miners Index | INDX |
| !SCINDX | Silver Cross Nasdaq 100 Index | INDX |
| !SCINAS | Silver Cross Nasdaq Composite Index | INDX |
| !SCINYA | Silver Cross NYSE Composite Index | INDX |
| !SCIOEX | Silver Cross S&P 100 Index | INDX |
| !SCIMID | Silver Cross S&P 400 Mid Cap Index | INDX |
| !SCISPX | Silver Cross S&P 500 Large Cap Index | INDX |
| !SCISML | Silver Cross S&P 600 Small Cap Index | INDX |
| !SCIXLC | Silver Cross S&P Communication Services Index | INDX |
| !SCIXLY | Silver Cross S&P Consumer Discretionary Index | INDX |
| !SCIXLP | Silver Cross S&P Consumer Staples Index | INDX |
| !SCIXLE | Silver Cross S&P Energy Index | INDX |
| !SCIXLF | Silver Cross S&P Financial Index | INDX |
| !SCIXLV | Silver Cross S&P Health Care Index | INDX |
| !SCIXLI | Silver Cross S&P Industrial Index | INDX |
| !SCIXLB | Silver Cross S&P Materials Index | INDX |
| !SCIXLRE | Silver Cross S&P Real Estate Index | INDX |
| !SCIXLK | Silver Cross S&P Technology Index | INDX |
| !SCIXLU | Silver Cross S&P Utilities Index | INDX |
| SLV.CA | Silver Dollar Resources Inc. | CSE |
| SLVDF | Silver Dollar Resources Inc. | PINK |
| SILEF | Silver Elephant Mining Corp | PINK |
| ELEF.TO | Silver Elephant Mining Corp. | TSE |
| SVG.V | Silver Grail Resources Limited | TSXV |
| SVLKF | Silver Lake Resources Ltd. | PINK |
| SLVRF | Silver One Resources Inc. | PINK |
| SVE.V | Silver One Resources Inc. | TSXV |
| SNG.V | Silver Range Resources Ltd. | TSXV |
| SAND.CA | Silver Sands Resources Corp. | CSE |
| SSRSF | Silver Sands Resources Corp. | PINK |
| SSPK | Silver Spike Acquisition Corp | NASD |
| SPKBU | Silver Spike Acquisition Corp. | NASD |
| SSE.V | Silver Spruce Resources, Inc. | TSXV |
| SLVR.V | Silver Tiger Metals Inc. | TSXV |
| VIPR.V | Silver Viper Minerals Corp. | TSXV |
| VIPRF | Silver Viper Minerals Corp. | PINK |
| SBTX | Silverback Therapeutics Inc. | NASD |
| SBOW | SilverBow Resources, Inc. | NYSE |
| SBEAU | SilverBox Engaged Merger Corp. | NASD |
| SVM.TO | Silvercorp Metals Inc. | TSE |
| SVM | Silvercorp Metals, Inc. | AMEX |
| SAMG | Silvercrest Asset Management Group Inc. | NASD |
| SIL.TO | SilverCrest Metals Inc. | TSE |
| SILV | SilverCrest Metals Inc. | AMEX |
| SI | Silvergate Capital Corp | NYSE |
| SSNT | SilverSun Technologies, Inc. | NASD |
| SIMBHALS.IN | Simbhaoli Sugars Ltd | NSE |
| SIML | Simlatus Corp. | PINK |
| SFNC | Simmons First National Corp. | NASD |
| SPG/PJ | Simon Property Group Inc. | NYSE |
| SPG | Simon Property Group, Inc. | NYSE |
| SIMPLEXINF.IN | Simplex Infrastructures Ltd. | NSE |
| QQC | Simplify Nasdaq 100 PLUS Convexity ETF | NASD |
| QQD | Simplify Nasdaq 100 PLUS Downside Convexity ETF | NASD |
| SPYC | Simplify US Equity PLUS Convexity ETF | AMEX |
| SPD | Simplify US Equity PLUS Downside Convexity ETF | AMEX |
| SPUC | Simplify US Equity PLUS Upside Convexity ETF | AMEX |
| VCLO | Simplify Volt Cloud and Cybersecurity Disruption ETF | AMEX |
| VFIN | Simplify Volt Fintech Disruption ETF | AMEX |
| VPOP | Simplify Volt Pop Culture Disruption ETF | AMEX |
| VCAR | Simplify Volt RoboCar Disruption and Tech ETF | AMEX |
| SIMP | Simply Inc. | PINK |
| SSD | Simpson Mfg Co, Inc. | NYSE |
| SMSMY | Sims Metal Management Ltd. | PINK |
| SLP | Simulations Plus, Inc. | NASD |
| SBGI | Sinclair Broadcast Group, Inc. | NASD |
| $THSINE | Sine Wave Pattern - Theory | INDX |
| $SGDAUD | Singapore Dollar to Australian Dollar (EOD) | INDX |
| $SGDGBP | Singapore Dollar to British Pound Sterling (EOD) | INDX |
| $SGDEUR | Singapore Dollar to Euro (EOD) | INDX |
| $SGDCHF | Singapore Dollar to Swiss Franc (EOD) | INDX |
| $SGDUSD | Singapore Dollar to US Dollar (EOD) | INDX |
| $STI | Singapore Straits Times Index (EOD) | SGX |
| SGAPY | Singapore Telecommunications Limited ADR | PINK |
| SMDM | Singing Machine Co., Inc. | PINK |
| SINGD | Singlepoint, Inc. | PINK |
| SIAF | Sino Agro Food Inc. | PINK |
| SINO | Sino-Global Shipping America, Ltd. | NASD |
| SHI | SINOPEC Shanghai Petrochemical Co. Ltd. | NYSE |
| SEI.V | Sintana Energy Inc. | TSXV |
| SINTERCOM.IN | Sintercom India Ltd | NSE |
| SINTEX.IN | Sintex Industries Ltd. | NSE |
| SPTL.IN | Sintex Plastics Technology Ltd. | NSE |
| SINT | SiNtx Technologies, Inc. | NASD |
| SIOX | Sio Gene Therapies Inc. | NASD |
| SIPC | SIPP Industries Inc. | PINK |
| SRV/UN.TO | SIR Royalty Income Fund | TSE |
| SIRCA.IN | Sirca Paints India Ltd | NSE |
| SOI.V | Sirios Resources Inc. | TSXV |
| SRE.L | Sirius Real Estate Ltd. | LSE |
| SIRI | Sirius XM Holdings Inc. | NASD |
| SPNT | SiriusPoint Ltd. | NYSE |
| SBM.V | Sirona Biochem Corp. | TSXV |
| SSA.L | Sistema JSFC GDR | LSE |
| SIBAX | Sit Balanced Fund | USMF |
| SDMGX | Sit Developing Markets Growth Fund | USMF |
| SDVGX | Sit Dividend Growth fund | USMF |
| SNGRX | Sit International Growth | USMF |
| SNIGX | Sit Large Cap Growth Fund, Inc. | USMF |
| NBNGX | Sit Mid Cap Growth Fund | USMF |
| SMTFX | Sit MN Tax-Free Income | USMF |
| SSMGX | Sit Small Cap Growth Fund | USMF |
| SNTIX | Sit Tax-Free Income Fund | USMF |
| SNGVX | Sit U.S. Government Securities | USMF |
| SITC | SITE Centers Corp. | NYSE |
| SITE | SiteOne Landscape Supply, Inc. | NYSE |
| SITINET.IN | Siti Networks Limited | NSE |
| SITM | SiTime Corp. | NASD |
| SIG.CA | Sitka Gold Corp. | CSE |
| SITOQ | SITO Mobile, Ltd. | PINK |
| SIX | Six Flags Entertainment Corp. | NYSE |
| TSLX | Sixth Street Specialty Lending | NYSE |
| SIXW.CA | Sixth Wave Innovations Inc. | CSE |
| SSOF | Sixty Six Oilfield Services, Inc. | PINK |
| SIYSIL.IN | Siyaram Silk Mills Ltd. | NSE |
| SYTA | Siyata Mobile Inc. | NASD |
| SJVN.IN | SJVN Ltd. | NSE |
| SJW | SJW Group Inc. | NYSE |
| $SKLUSD | SKALE Network to US Dollar | CRYPT |
| SKX | Skechers Usa, Inc. | NYSE |
| SKE.TO | Skeena Resources Limited | TSE |
| SKREF | Skeena Resources Ltd. | PINK |
| $SKEW | SKEW Index - CBOE | INDX |
| SKFINDIA.IN | SKF India Ltd. | NSE |
| SKIL.IN | SKIL Infrastructure Ltd | NSE |
| EDTK | Skillful Craftsman Education Technology Ltd. | NASD |
| SKLZ | Skillz Inc. | NYSE |
| SKIPPER.IN | Skipper Ltd. | NSE |
| SKMEGGPROD.IN | SKM Egg Products Export (India) Ltd. | NSE |
| SKM | SKTelecom Co. Ltd. | NYSE |
| SKYG.V | Sky Gold Corp | TSXV |
| SCT.V | Skychain Technologies Inc. | TSXV |
| SKYE | Skye Bioscience Inc. | PINK |
| SKPO | Skye Petroleum Inc | PINK |
| SYH.V | Skyharbour Resources Ltd. | TSXV |
| SYHBF | Skyharbour Resources Ltd. | PINK |
| SHG.V | Skylight Health Group Inc. | TSXV |
| SHGFF | Skylight Health Group Inc. | PINK |
| SKY | Skyline Corp. | NYSE |
| SKSEX | Skyline Special Equities Ptfolio | USMF |
| SKYW | SkyWest, Inc. | NASD |
| SWKS | Skyworks Solutions Inc. | NASD |
| SLG | SL Green Realty Corp. | NYSE |
| WORK | Slack Technologies Inc. | NYSE |
| SLAMU | Slam Corp. | NASD |
| SLNG.CA | SLANG Worldwide Inc. | CSE |
| SLGWF | SLANG Worldwide, Inc. | PINK |
| SGR/UN.TO | Slate Grocery REIT | TSE |
| SOT/UN.TO | Slate Office Real Estate Investment Trust | TSE |
| SLZ.CA | Slave Lake Zinc Corp. | CSE |
| ZZZ.TO | Sleep Country Canada Holdings Inc. | TSE |
| SNBR | Sleep Number Corporation | NASD |
| JSM | SLM Corp. | NASD |
| SLMBP | SLM Corp. | NASD |
| SLM | SLM Holding Corp. | NASD |
| $SAX | Slovakia (Bratislava) SAX Index (EOD) | BSSE |
| SM | SM Energy Co. | NYSE |
| SMAA | SMA Alliance Inc. | PINK |
| SRTMX | SMA Relationship Trust | USMF |
| SDV.L | Small Companies Dividend Trust | LSE |
| SMCWX | SMALLCAP World Fund Inc. (American Funds) | USMF |
| SCNA | Smart Cannabis Corp. | PINK |
| SGH | Smart Global Holdings, Inc. | NASD |
| SMS.L | Smart Metering Systems PLC | LSE |
| SRU/UN.TO | Smart Real Estate Investment Trust | TSE |
| SND | Smart Sand, Inc. | NASD |
| EM | Smart Share Global Ltd. | NASD |
| MRAD | SmartETFs Advertising & Marketing Technology ETF | AMEX |
| ADIV | SmartETFs Asia Pacific Dividend Builder ETF | AMEX |
| DIVS | SmartETFs Dividend Builder ETF | AMEX |
| MOTO | SmartETFs Smart Transportation & Technology ETF | AMEX |
| SMBK | SmartFinancial, Inc. | NASD |
| SMARTLINK.IN | Smartlink Network Systems Ltd. | NSE |
| SMME | SmartMetric Inc. | PINK |
| SMAR | Smartsheet, Inc. | NYSE |
| SMRT.L | Smartspace Software Plc | LSE |
| SMCAY | SMC Corp. | PINK |
| SMCE | SMC Entertainment Inc. | PINK |
| SMVLX | Smead Value Fund | USMF |
| SVFAX | Smead Value Fund | USMF |
| SVFFX | Smead Value Fund | USMF |
| SMGI | SMG Industries Inc. | PINK |
| SDC | SmileDirectClub Inc. | NASD |
| SN.L | Smith & Nephew | LSE |
| SWBI | Smith & Wesson Brands, Inc. | NASD |
| SMDS.L | Smith (DS) | LSE |
| SNN | Smith and Nephew PLC | NYSE |
| AOS | Smith AO Corp. | NYSE |
| SMSI | Smith Micro Software, Inc. | NASD |
| SMID | Smith-Midland Corp. | PINK |
| SMIN.L | Smiths Group | LSE |
| SSON.L | Smithson Investment Trust Plc | LSE |
| SMLISUZU.IN | SML Isuzu Ltd. | NSE |
| SFIO | SmokeFree Innotec Inc | PINK |
| SMSLIFE.IN | SMS Lifesciences India Ltd | NSE |
| SMSPHARMA.IN | SMS Pharmaceuticals Ltd. | NSE |
| SKG.L | Smurfit Kappa Group | LSE |
| SNAP | Snap Inc. | NYSE |
| SNA | Snap On Inc. Holding Co. | NYSE |
| SNC.TO | SNC-Lavalin Group, Inc. | TSE |
| SPN.V | Snipp Interactive Inc. | TSXV |
| SNMN | SNM Global Holdings | PINK |
| SNOAX | Snow Capital Opportunity Fund | USMF |
| SNOW | Snowflake Inc. | NYSE |
| SNOWMAN.IN | Snowman Logistics Ltd. | NSE |