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Livermore
Livermore
ZHEN

Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

Holdings in Q2 2021

Holdings as of Jun 30, 2021, filed Aug 12, 2021. Long positions only; changes compare share counts with Q1 2021.

Institution overview
Positions
2,810
+17 vs. Q1 2021
Portfolio value
$2.77B
+$981.8M (+54.9%) vs. Q1 2021
Filed
Aug 12, 2021
SEC
Holdings of Simplex Trading, LLC in Q2 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
ETF Managers Tr26924G508ETFMG ALTR HRVST200$4.00K<0.1%−38,081−99.5%Reduced–
FTKFlotek Industries IncCOM2,601$4.00K<0.1%+2,601NewHistory
PRPOPrecipio, Inc.COM1,244$4.00K<0.1%+1,244NewHistory
SASRSandy Spring Bancorp IncCOM100$4.00K<0.1%00.0%UnchangedHistory
SCWXSecureWorks CorpCL A254$4.00K<0.1%+145+133.0%AddedHistory
SRCLStericycle IncCOM58$4.00K<0.1%−1,394−96.0%ReducedHistory
XWELXWELL, Inc.COM2,600$4.00K<0.1%00.0%UnchangedHistory
Vanguard Mortgage-Backed Securities ETF92206C771ETF100$5.00K<0.1%+100New–
PSOPearson PLCSPONSORED ADR510$5.00K<0.1%−410−44.6%ReducedHistory
COLLCollegium Pharmaceutical, IncCOM248$5.00K<0.1%−1,511−85.9%ReducedHistory
Global X FDS37954Y343GLBL X MLP ETF144$5.00K<0.1%+144New–
ASRVAmeriserv Financial IncCOM1,377$5.00K<0.1%+135+10.9%AddedHistory
GAUGaliano Gold Inc.COM5,274$5.00K<0.1%+2,207+72.0%AddedHistory
TARAProtara Therapeutics, Inc.COM STK581$5.00K<0.1%+581NewHistory
TRSTTrustco Bank Corp N YCOM NEW150$5.00K<0.1%+150NewHistory
VTSIVirTra, IncCOM PAR743$5.00K<0.1%+743NewHistory
ABSTAbsolute Software CorpCOM399$5.00K<0.1%+399NewHistory
JGAurora Mobile LtdADS1,687$5.00K<0.1%−93,925−98.2%ReducedHistory
CSGSCSG Systems International IncCOM116$5.00K<0.1%−966−89.3%ReducedHistory
CalAmp Corp.128126109COM440$5.00K<0.1%−7,054−94.1%Reduced–
DXYNDixie Group IncCL A1,832$5.00K<0.1%+694+61.0%AddedHistory
KLDOKaleido Biosciences, Inc.COM749$5.00K<0.1%+749NewHistory
PASGPassage BIO, Inc.COM387$5.00K<0.1%+272+236.5%AddedHistory
ProShares Tr74347B227ULTSHT FT CH 50200$5.00K<0.1%+200New–
REEDReed's, Inc.COM5,838$5.00K<0.1%+5,838NewHistory
Rodgers Silicon Valley Aq Co774873103COM221$5.00K<0.1%+221New–
AGLagilon health, inc.COM146$5.00K<0.1%+146NewHistory
State Street SPDR Portfolio Short Term Corporate Bond ETF78464A474ETF200$6.00K<0.1%+200New–
EMEEMCOR Group, Inc.Stock52$6.00K<0.1%−200−79.4%ReducedHistory
iShares U.S. ETF Trust iShares Gsci Commodity Dynamic Roll Strategy ETF46431W853ETF186$6.00K<0.1%+186New–
SLABSilicon Laboratories Inc.Stock43$6.00K<0.1%+43NewHistory
PDFSPDF Solutions IncCOM374$6.00K<0.1%+374NewHistory
PAYSPaysign, Inc.COM2,175$6.00K<0.1%−4,330−66.6%ReducedHistory
iShares Inc464286533MSCI EMERG MRKT95$6.00K<0.1%+21+28.4%Added–
RGPResources Connection, Inc.COM440$6.00K<0.1%+98+28.7%AddedHistory
OCFCOceanfirst Financial CorpCOM323$6.00K<0.1%−747−69.8%ReducedHistory
DANDANA IncCOM258$6.00K<0.1%−3,313−92.8%ReducedHistory
LKFNLakeland Financial CorpCOM111$6.00K<0.1%−100−47.4%ReducedHistory
ATRCAtriCure, Inc.COM81$6.00K<0.1%+81NewHistory
POWIPower Integrations IncCOM84$6.00K<0.1%+84NewHistory
BLKBBlackbaud IncCOM90$6.00K<0.1%−27,385−99.7%ReducedHistory
WLYJohn Wiley & Sons, Inc.CL A114$6.00K<0.1%+114NewHistory
TBITrueBlue, Inc.COM230$6.00K<0.1%+230NewHistory
ANIPAni Pharmaceuticals IncCOM174$6.00K<0.1%+120+222.2%AddedHistory
HOPEHope Bancorp IncCOM429$6.00K<0.1%+80+22.9%AddedHistory
APAmpco Pittsburgh CorpCOM1,050$6.00K<0.1%−2,271−68.4%ReducedHistory
AXTIAxt IncCOM629$6.00K<0.1%−19,756−96.9%ReducedHistory
IGCIGC Pharma, Inc.COM NEW3,703$6.00K<0.1%−83,113−95.7%ReducedHistory
KODKodiak Sciences Inc.COM70$6.00K<0.1%−25−26.3%ReducedHistory
LFCRLifecore Biomedical, Inc.COM619$6.00K<0.1%+619NewHistory
STIMNeuronetics, Inc.COM420$6.00K<0.1%−2,236−84.2%ReducedHistory
RYZRyerson Holding CorpCOM462$6.00K<0.1%+462NewHistory
Airnet Technology Inc00941Q104SPONSORED ADS2,193$6.00K<0.1%−32,506−93.7%Reduced–
ALEAllete IncCOM NEW100$6.00K<0.1%+100NewHistory
Barclays Bank PLC06746P548ETN LKD 48149$6.00K<0.1%+129+645.0%Added–
Direxion Shs ETF Tr25460E554DAILY ENERGY BEA488$6.00K<0.1%+488New–
FRGFranchise Group, Inc.COM182$6.00K<0.1%−2,099−92.0%ReducedHistory
IRONDisc Medicine, Inc.COM1,059$6.00K<0.1%−49,147−97.9%ReducedHistory
Goldman Sachs ETF Tr38149W820INNOVAT EQ ETF101$6.00K<0.1%+100+10,000.0%Added–
Imv Inc44974L103COM2,809$6.00K<0.1%−4,632−62.2%Reduced–
Orla MNG Ltd New68634K106COM1,467$6.00K<0.1%+1,467New–
AIXCFF EAI Robotics Ecosystem Inc.COM3,428$6.00K<0.1%−24,004−87.5%ReducedHistory
VCNXVaccinex, Inc.COM2,325$6.00K<0.1%+2,325NewHistory
ASRTAssertio Holdings, Inc.COM NEW4,084$6.00K<0.1%−17,124−80.7%ReducedConverted for a 1-for-4 splitHistory
WMGWarner Music Group Corp.COM CL A217$7.00K<0.1%−14,051−98.5%ReducedHistory
AMCXAMC Global Media Inc.CL A115$7.00K<0.1%+115NewHistory
TPBTurning Point Brands, Inc.COM153$7.00K<0.1%+153NewHistory
First Tr Exchange-Traded FD33734X838INDXX NAT RE ETF544$7.00K<0.1%+444+444.0%Added–
iShares Tr464287770U.S. FIN SVC ETF38$7.00K<0.1%+38New–
WDCWestern Digital CorpCOM100$7.00K<0.1%−47,443−99.8%ReducedHistory
iShares Tr464288273EAFE SML CP ETF105$7.00K<0.1%+100+2,000.0%Added–
ALLTAllot Ltd.SHS355$7.00K<0.1%−34,670−99.0%ReducedHistory
NRIXNurix Therapeutics, Inc.COM299$7.00K<0.1%+199+199.0%AddedHistory
QUIKQUICKLOGIC CorpCOM NEW1,042$7.00K<0.1%−2,522−70.8%ReducedHistory
SIEBSiebert Financial CorpCOM1,524$7.00K<0.1%−5,363−77.9%ReducedHistory
SPROSpero Therapeutics, Inc.COM507$7.00K<0.1%+507NewHistory
STOKStoke Therapeutics, Inc.COM222$7.00K<0.1%−439−66.4%ReducedHistory
AFIBAcutus Medical, Inc.COM469$7.00K<0.1%+469NewHistory
Bancorpsouth BK Tupelo Miss05971J102COM259$7.00K<0.1%+259New–
CCLPCSI Compressco LPCOM UNIT3,922$7.00K<0.1%+518+15.2%AddedHistory
MTVAMetaVia Inc.COM2,123$7.00K<0.1%+2,123NewHistory
TWAVTaoWeave, Inc.COM2,207$7.00K<0.1%+2,207NewHistory
Petrochina Co Ltd71646E100SPONSORED ADR158$7.00K<0.1%−681−81.2%Reduced–
Portman Ridge Fin Corp73688F102COM3,256$7.00K<0.1%+3,256New–
PROPROS Holdings, Inc.COM159$7.00K<0.1%+159NewHistory
SAFESafehold Inc.COM99$7.00K<0.1%−315−76.1%ReducedHistory
SSBSouthState Bank CorpCOM89$7.00K<0.1%−456−83.7%ReducedHistory
TRECTrecora ResourcesCOM951$7.00K<0.1%+951NewHistory
LEUCentrus Energy CorpStock350$8.00K<0.1%−7,009−95.2%ReducedHistory
iShares Tr46435G102CONV BD ETF87$8.00K<0.1%+87New–
Global X FDS37954Y483NASDAQ 100 COVER400$8.00K<0.1%−3,167−88.8%Reduced–
Direxion Shares ETF Trust25460E869DAILY 500 1X ETF537$8.00K<0.1%+27+5.3%Added–
First Tr Exchange-Traded Alp33734K109COM SHS100$8.00K<0.1%+100New–
BRXBrixmor Property Group Inc.COM380$8.00K<0.1%−9,142−96.0%ReducedHistory
CBRECbre Group, Inc.CL A95$8.00K<0.1%+95NewHistory
VanEck ETF Trust92189F437FALLEN ANGEL HG253$8.00K<0.1%−100−28.3%Reduced–
FHBFirst Hawaiian, Inc.COM287$8.00K<0.1%+287NewHistory
Invesco Exchange Traded FD T46137V837DORS WRI MOM ETF100$8.00K<0.1%+100New–
WTWWillis Towers Watson PLCSHS37$8.00K<0.1%−2,753−98.7%ReducedHistory
BOKFBok Financial CorpCOM NEW94$8.00K<0.1%−553−85.5%ReducedHistory

Options (7,168)

Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.

The largest 100 of 7,168 by value.

Option positions of Simplex Trading, LLC in Q2 2021
SecurityClassPutsCalls
SPDR S&P 500 ETF Tr78462F953PUT$12.1B–
SPDR S&P 500 ETF Tr78462F903CALL–$5.41B
Tesla Inc88160R951PUT$5.09B–
Invesco QQQ Tr46090E953PUT$3.56B–
iShares Tr464287957PUT$3.47B–
Tesla Inc88160R901CALL–$3.19B
Amazon Com Inc023135956PUT$2.40B–
Invesco QQQ Tr46090E903UNIT SER 1–$2.17B
Amazon Com Inc023135906CALL–$1.98B
Apple Inc037833900CALL–$1.89B
Apple Inc037833950PUT$1.72B–
iShares Tr464287907CALL–$1.62B
Select Sector SPDR Tr81369Y956PUT$991.1M–
NVIDIA Corporation67066G954PUT$923.4M–
Select Sector SPDR Tr81369Y906CALL–$902.2M
GameStop Corp New36467W959PUT$899.0M–
Alibaba Group Hldg Ltd01609W902CALL–$818.2M
Facebook Inc30303M952PUT$817.5M–
Facebook Inc30303M902CALL–$813.6M
AMC Entmt Hldgs Inc00165C954PUT$805.9M–
NVIDIA Corporation67066G904CALL–$799.2M
Alphabet Inc02079K955PUT$755.2M–
SPDR Gold Tr78463V957GOLD SHS$691.5M–
Microsoft Corp594918954PUT$684.5M–
Alibaba Group Hldg Ltd01609W952PUT$651.9M–
SPDR Gold Tr78463V907CALL–$616.1M
Alphabet Inc02079K905CALL–$573.5M
Microsoft Corp594918904CALL–$570.3M
Netflix Inc64110L956PUT$502.2M–
Netflix Inc64110L906CALL–$443.6M
Boeing Co097023905COM–$420.2M
Advanced Micro Devices Inc007903907CALL–$403.7M
Advanced Micro Devices Inc007903957PUT$383.9M–
Salesforce Com Inc79466L902CALL–$324.8M
iShares Silver Tr46428Q909CALL–$317.8M
SPDR Dow Jones Indl Average78467X909CALL–$317.7M
Square Inc852234953PUT$304.5M–
Boeing Co097023955PUT$288.3M–
Salesforce Com Inc79466L952PUT$271.3M–
VanEck Vectors ETF Tr92189F952PUT$259.3M–
Baidu Inc056752908CALL–$259.0M
VanEck Vectors ETF Tr92189F902CALL–$254.1M
Disney Walt Co254687956PUT$252.7M–
SPDR Dow Jones Indl Average78467X959PUT$252.3M–
AMC Entmt Hldgs Inc00165C904CALL–$249.6M
Baidu Inc056752958PUT$243.6M–
NIO Inc62914V956PUT$242.2M–
Micron Technology Inc595112903CALL–$240.0M
Square Inc852234903CALL–$238.9M
Disney Walt Co254687906CALL–$237.3M
JPMorgan Chase & Co46625H905CALL–$223.1M
ARK ETF Tr00214Q957PUT$218.8M–
Snap Inc83304A956PUT$217.2M–
Micron Technology Inc595112953PUT$215.4M–
Citigroup Inc172967954PUT$206.2M–
PayPal Hldgs Inc70450Y953PUT$205.6M–
Visa Inc92826C909CALL–$204.6M
Roku Inc77543R952PUT$204.5M–
Intel Corp458140900CALL–$204.1M
Shopify Inc82509L957PUT$201.3M–
JPMorgan Chase & Co46625H955PUT$200.7M–
Qualcomm Inc747525953PUT$191.6M–
PayPal Hldgs Inc70450Y903CALL–$190.0M
Roku Inc77543R902CALL–$187.0M
GameStop Corp New36467W909CALL–$185.0M
Zoom Video Communications IN98980L951PUT$180.5M–
NIO Inc62914V906CALL–$178.0M
Adobe Systems Incorporated00724F951PUT$177.6M–
Visa Inc92826C959PUT$176.6M–
Shopify Inc82509L907CALL–$176.2M
Mastercard Incorporated57636Q904CALL–$175.1M
FedEx Corp31428X906CALL–$174.7M
ProShares Tr74347X900CALL–$173.3M
Airbnb Inc009066901CALL–$171.5M
Walmart Inc931142903CALL–$169.2M
Citigroup Inc172967904CALL–$169.1M
Jd.com Inc47215P906CALL–$164.5M
Goldman Sachs Group Inc38141G954PUT$162.4M–
Mastercard Incorporated57636Q954PUT$162.2M–
SPDR Ser Tr78464A958PUT$162.0M–
FedEx Corp31428X956PUT$161.1M–
Nike Inc654106903CALL–$157.9M
Viacomcbs Inc92556H906CALL–$155.4M
Walmart Inc931142953PUT$153.8M–
BK of America Corp060505954PUT$153.4M–
Chipotle Mexican Grill Inc169656955PUT$151.0M–
Qualcomm Inc747525903CALL–$150.4M
Intel Corp458140950PUT$149.7M–
iShares Tr464288955PUT$149.3M–
iShares Inc464286951PUT$146.8M–
Coinbase Global Inc19260Q957PUT$142.6M–
Broadcom Inc11135F951PUT$139.3M–
Adobe Systems Incorporated00724F901CALL–$139.0M
ProShares Tr74347X950PUT$138.6M–
Zoom Video Communications IN98980L901CALL–$137.9M
Moderna Inc60770K957PUT$133.4M–
Costco WHSL Corp New22160K905CALL–$132.4M
Twitter Inc90184L902CALL–$127.8M
Taiwan Semiconductor Mfg Ltd874039950PUT$127.8M–
Uber Technologies Inc90353T950PUT$127.0M–

Sold out since Q1 2021 (828)

Positions held at the end of Q1 2021 that are gone from this filing.

The largest 100 of 828 by value last quarter.

Positions of Simplex Trading, LLC sold out since Q1 2021
SecurityClassShares in Q1 2021Value in Q1 2021% of portfolio in Q1 2021History
TDOCTeladoc Health, Inc.COM78,708$14.3M0.8%History
DOCUDocuSign, Inc.Stock60,689$12.3M0.7%History
BILIBilibili Inc.SPONS ADS REP Z96,362$10.3M0.6%History
PINSPinterest, Inc.CL A119,718$8.86M0.5%History
MSFTMicrosoft CorpStock34,341$8.10M0.5%History
LILi Auto Inc.SPONSORED ADS265,627$6.64M0.4%History
PYPLPayPal Holdings, Inc.Stock23,052$5.60M0.3%History
PTONPeloton Interactive, Inc.CL A COM47,982$5.39M0.3%History
iShares Inc464286103MSCI AUST ETF200,510$4.97M0.3%–
MGMMGM Resorts InternationalStock130,813$4.97M0.3%History
NKENIKE, Inc.Stock32,782$4.36M0.2%History
UUnity Software Inc.COM42,854$4.30M0.2%History
iShares Russell 1000 Value ETF464287598ETF27,792$4.21M0.2%–
SNPSSynopsys IncCOM15,435$3.82M0.2%History
DLTRDollar Tree, Inc.COM32,290$3.69M0.2%History
MDTMedtronic plcStock30,086$3.55M0.2%History
KRAKraton CorpCOM81,937$3.00M0.2%History
State Street Materials Select Sector SPDR ETF81369Y100ETF37,463$2.95M0.2%–
DDDuPont de Nemours, Inc.COM37,815$2.92M0.2%History
ARK ETF Tr00214Q302GENOMIC REV ETF27,828$2.47M0.1%–
JCIJohnson Controls International plcStock41,228$2.46M0.1%History
CFCF Industries Holdings, Inc.COM51,724$2.35M0.1%History
WOLFWolfspeed, Inc.COM21,103$2.28M0.1%History
Artius Acquisition Inc04316G105COM CL A223,503$2.26M0.1%–
DISHDISH Network CORPCL A62,179$2.25M0.1%History
State Street SPDR S&P Homebuilders ETF78464A888ETF31,599$2.22M0.1%–
ALBAlbemarle CorpStock14,872$2.17M0.1%History
CELHCelsius Holdings, Inc.COM NEW43,853$2.11M0.1%History
NUANNuance Communications, Inc.COM47,417$2.07M0.1%History
ORCLOracle CorpStock29,411$2.06M0.1%History
MGNIMagnite, Inc.COM49,469$2.06M0.1%History
PLDPrologis, Inc.REIT19,107$2.02M0.1%History
GMSGMS Inc.COM47,289$1.97M0.1%History
GHGuardant Health, Inc.COM12,601$1.92M0.1%History
Forum Merger III Corp349885103COM CL A192,189$1.92M0.1%–
AXPAmerican Express CoStock13,454$1.90M0.1%History
HUNHuntsman CORPCOM65,857$1.90M0.1%History
WHRWhirlpool CorpStock8,559$1.89M0.1%History
TRIPTripAdvisor, Inc.COM34,646$1.86M0.1%History
iShares Inc46434G772MSCI TAIWAN ETF30,636$1.84M0.1%–
FSLRFirst Solar, Inc.Stock20,622$1.80M0.1%History
PCGPG&E CorpStock153,458$1.80M0.1%History
FIRYFiry Inc.COM93,368$1.78M0.1%History
STLDSteel Dynamics IncCOM34,965$1.77M0.1%History
GDDYGoDaddy Inc.CL A22,639$1.76M0.1%History
MLMMartin Marietta Materials IncCOM5,206$1.75M0.1%History
Forest Road Acquisition Corp34619R102COM170,241$1.72M0.1%–
HSYHershey CoCOM10,711$1.69M0.1%History
AYXAlteryx, Inc.COM CL A20,401$1.69M0.1%History
MMacy's, Inc.COM96,790$1.57M0.1%History
DRIDarden Restaurants IncCOM11,021$1.56M0.1%History
MPMP Materials Corp.COM CL A43,038$1.55M0.1%History
RTXRTX CorpStock19,597$1.51M0.1%History
CTLTCatalent, Inc.COM13,753$1.45M0.1%History
ProShares Tr74347X799ULTR RUSSL200013,390$1.43M0.1%–
iShares MSCI India ETF46429B598ETF33,777$1.42M0.1%–
TRVTravelers Companies, Inc.Stock9,343$1.41M0.1%History
BTIBritish American Tobacco p.l.c.SPONSORED ADR35,296$1.37M0.1%History
SAPSAP SEADR11,084$1.36M0.1%History
VRSNVerisign IncCOM6,718$1.33M0.1%History
ProShares Tr74347X831ULTRAPRO QQQ14,350$1.31M0.1%–
FTVFortive CorpStock17,936$1.27M0.1%History
Tuscan Hldgs Corp II90070A103COM124,808$1.26M0.1%–
ENTGEntegris IncCOM11,105$1.24M0.1%History
RYNRayonier IncCOM37,433$1.21M0.1%History
NGGNational Grid PLCSPONSORED ADR NE20,239$1.20M0.1%History
China Life Ins Co Ltd16939P106SPON ADR REP H114,935$1.20M0.1%–
MTSIMACOM Technology Solutions Holdings, Inc.COM20,297$1.18M0.1%History
Vanguard S&P 500 Growth ETF921932505ETF4,968$1.17M0.1%–
SPDR Series Trust78464A805ST STR PR SP150023,663$1.16M0.1%–
AMRCAmeresco, Inc.CL A23,800$1.16M0.1%History
Flir Sys Inc302445101COM20,189$1.14M0.1%–
Sustainable Opportnts Acq CoG8598Y109ORD SHS A113,702$1.13M0.1%–
GGBGerdau S.A.SPON ADR REP PFD210,591$1.12M0.1%History
GOOGLAlphabet Inc.Stock540$1.11M0.1%History
UPWKUpwork, IncCOM24,362$1.09M0.1%History
ProShares Tr74347X849SHRT 20+YR TRE60,151$1.09M0.1%–
HUMHumana IncStock2,590$1.08M0.1%History
Thunder BRDG Acquistion II LG8857S116CL A SHS103,391$1.08M0.1%–
Victory Portfolios II92647N766VCSHS US 500 VOL15,803$1.06M0.1%–
HRTXHeron Therapeutics, Inc.COM64,103$1.04M0.1%History
WIMIWiMi Hologram Cloud Inc.SPON ADS CL B152,047$1.00M0.1%History
MXMagnachip Semiconductor CorpCOM39,983$995.0K0.1%History
Aphria Inc03765K104COM54,005$992.0K0.1%–
CDWCDW CorpCOM5,939$984.0K0.1%History
AMXAmerica Movil SAB de CVSPON ADR L SHS71,816$975.0K0.1%History
ITUBItau Unibanco Holding S.A.SPON ADR REP PFD196,086$972.0K0.1%History
FirstMark Horizon Acquisition Corp.33765Y101CL A COM96,595$965.0K0.1%–
UVXYProShares Trust IIULTRA VIX SHORT169,530$957.0K0.1%History
VOYAVoya Financial, Inc.COM14,767$939.0K0.1%History
YUMYum Brands IncStock8,563$926.0K0.1%History
Nextgen Acquisition CorpG65305107CL A92,739$919.0K0.1%–
WYWeyerhaeuser CoCOM NEW25,683$914.0K0.1%History
Social Capital Hedosopha HLDG82514103SHS CL A83,309$913.0K0.1%–
ECEcopetrol S.A.SPONSORED ADS71,208$912.0K0.1%History
SWAVShockwave Medical, Inc.COM6,963$907.0K0.1%History
DOCHealthpeak Properties, Inc.COM28,575$906.0K0.1%History
First Trust Nasdaq Clean Edge Green Energy Index Fund33733E500ETF13,168$903.0K0.1%–
AAMIAcadian Asset Management Inc.COM43,488$886.0K<0.1%History
INMDInMode Ltd.SHS12,156$879.0K<0.1%History