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Livermore
Livermore
ZHEN

Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

Holdings in Q1 2024

Holdings as of Mar 31, 2024, filed Apr 25, 2024. Long positions only; changes compare share counts with Q4 2023.

Institution overview
Positions
2,382
−50 vs. Q4 2023
Portfolio value
$3.43B
+$218.7M (+6.8%) vs. Q4 2023
Filed
Apr 25, 2024
SEC
Holdings of Simplex Trading, LLC in Q1 2024
SecurityClassSharesValue% of portfolioShare changeActionHistory
UPLDUpland Software, Inc.COM229$00.0%−13,484−98.3%ReducedHistory
VNRXVolitionrx LtdCOM475$00.0%+475NewHistory
WHFWhiteHorse Finance, Inc.COM26$00.0%−190−88.0%ReducedHistory
DAOYoudao, Inc.SPONSORED ADS148$00.0%−1,159−88.7%ReducedHistory
Maiden Holdings, Ltd.G5753U112SHS184$00.0%+184New–
SRLScully Royalty Ltd.COM SHS115$00.0%+115NewHistory
Spi Energy Co LtdG8651P110SHS NEW913$00.0%−4,999−84.6%Reduced–
ZKINZK International Group Co., Ltd.SHS91$00.0%−10−9.9%ReducedHistory
CSTECaesarstone Ltd.ORD SHS151$00.0%+151NewHistory
ENTXEntera Bio Ltd.SHS295$00.0%+295NewHistory
EVGNEvogene Ltd.SHS480$00.0%+457+1,987.0%AddedHistory
SLGLSol-Gel Technologies Ltd.SHS526$00.0%+526NewHistory
IFRXInflaRx N.V.COM301$00.0%−1,270−80.8%ReducedHistory
Advisorshares Tr00768Y388RESTAURANT ETF15$00.0%+15New–
TBIOTelesis Bio Inc.COM100$00.0%−3,879−97.5%ReducedHistory
FTCIFTC Solar, Inc.COM453$00.0%−21,784−98.0%ReducedHistory
FOAFinance of America Companies Inc.COM CL A34$00.0%+34NewHistory
UPXIUpexi, Inc.COM617$00.0%−296−32.4%ReducedHistory
HYZNHyzon Motors Inc.COMMON STOCK217$00.0%−21,296−99.0%ReducedHistory
NSPRInspireMD, Inc.COM110$00.0%+110NewHistory
MKFGMarkforged Holding CorpCOM100$00.0%−800−88.9%ReducedHistory
NRXPNRX Pharmaceuticals, Inc.COM195$00.0%+195NewHistory
HLTHCue Health Inc.COM34$00.0%−5,107−99.3%ReducedHistory
EWCZEuropean Wax Center, Inc.CLASS A COM34$00.0%−533−94.0%ReducedHistory
SNPOSnap One Holdings Corp.COM44$00.0%−293−86.9%ReducedHistory
Vicinity Motor Corp925654105COM645$00.0%+300+87.0%Added–
WKSPWorksport LtdCOM NEW985$00.0%+985NewHistory
ABTSAbits Group IncORDINARY SHARES618$00.0%+618NewHistory
TSEOQTrinseo PLCCOM159$00.0%+159NewHistory
CYNCyngn Inc.COM5,819$00.0%+5,619+2,809.5%AddedHistory
RENTRent the Runway, Inc.COM CL A391$00.0%−85,268−99.5%ReducedHistory
Snow Lake Res Ltd83336J208COM446$00.0%+284+175.3%Added–
SATLSatellogic Inc.CLASS A ORD SHS124$00.0%+124NewHistory
BGXXBright Green CorpCOMMON STOCK64$00.0%+64NewHistory
iShares Tr46436E361BLOCKCHAIN & TEC30$00.0%+30New–
GGRGogoro Inc.ORDINARY SHARES100$00.0%−93−48.2%ReducedHistory
AKLIAkili, Inc.COMMON STOCK3,081$00.0%+3,080+308,000.0%AddedHistory
Direxion Shs ETF Tr25461A403DAILY MSFT BR 1X7$00.0%+7New–
Graniteshares ETF Tr38747R7021.25X LNG TESLA102$00.0%+87+580.0%Added–
THCHTH International LtdORDINARY SHARES1$00.0%−1,306−99.9%ReducedHistory
Oneconnect Finl Technology C68248T204SPONSORED ADS82$00.0%−2,257−96.5%Reduced–
FTFTFuture FinTech Group Inc.COM NEW743$00.0%−612−45.2%ReducedHistory
AXDXAccelerate Diagnostics, IncCOMM STK721$00.0%+721NewHistory
UCARU Power LtdSHS3,765$00.0%+1,644+77.5%AddedHistory
ALURAllurion Technologies, Inc.COM SHS207$00.0%+166+404.9%AddedHistory
BTCYBiotricity Inc.COM NEW201$00.0%+149+286.5%AddedHistory
Graniteshares ETF Tr38747R7931.5X SHORT NVDA48$00.0%+48New–
RBTCRubicon Technologies, Inc.CL A701$00.0%+701NewHistory
Tidal ETF Tr88634T428II YIELDMAX MSFT OP27$00.0%+27New–
UAVSAgEagle Aerial Systems Inc.COM165$00.0%+165NewHistory
PAVMPAVmed Inc.COM NEW400$00.0%−591−59.6%ReducedHistory
Tidal ETF Tr II88634T766YIELDMAX SQ OPT6$00.0%+6New–
Amplify ETF Tr032108540AMPLIFY TRAVEL T34$00.0%+34New–
CENNCenntro Inc.COM40$00.0%−35−46.7%ReducedHistory
FFAIFaraday Future Intelligent Electric Inc.COM CL A8,487$00.0%+8,487NewHistory
Affimed N VN01045207ORDINARY SHS NEW118$00.0%+118New–
CTRMCastor Maritime Inc.SHS10$00.0%−3,290−99.7%ReducedConverted for a 1-for-10 splitHistory
Allego N V Ord ShsN0796A100Stock1,019$1.00K<0.1%+773+314.2%Added–
RCATRed Cat Holdings, Inc.Stock1,894$1.00K<0.1%−2,227−54.0%ReducedHistory
iShares Tr464287390LATN AMER 40 ETF65$1.00K<0.1%+65New–
NGVTIngevity CorpCOM34$1.00K<0.1%−665−95.1%ReducedHistory
SPDR Index Shs FDS78463X541ST STR NAT ETF32$1.00K<0.1%−68−68.0%Reduced–
MDWDMediWound Ltd.SHS NEW140$1.00K<0.1%+140NewHistory
PBIPitney Bowes IncCOM234$1.00K<0.1%−163,572−99.9%ReducedHistory
VCYTVeracyte, Inc.COM83$1.00K<0.1%−8,270−99.0%ReducedHistory
VanEck ETF Trust92189F353EMERGING MRKT HI99$1.00K<0.1%+99New–
OSBCOld Second Bancorp IncCOM118$1.00K<0.1%+118NewHistory
BTSGBrightSpring Health Services, Inc.COM176$1.00K<0.1%+176NewHistory
BLKBBlackbaud IncCOM18$1.00K<0.1%−199−91.7%ReducedHistory
UGPUltrapar Holdings IncSP ADR REP COM285$1.00K<0.1%−173−37.8%ReducedHistory
AHRAmerican Healthcare REIT, Inc.COM SHS118$1.00K<0.1%+118NewHistory
ACIUAC Immune SASHS635$1.00K<0.1%+635NewHistory
APIAgora, Inc.ADS676$1.00K<0.1%−5,132−88.4%ReducedHistory
CCLDCareCloud, Inc.COM1,678$1.00K<0.1%−280−14.3%ReducedHistory
CLDTChatham Lodging TrustCOM100$1.00K<0.1%+100NewHistory
DXLGDestination XL Group, Inc.COM334$1.00K<0.1%+334NewHistory
IMMXImmix Biopharma, Inc.COM509$1.00K<0.1%+509NewHistory
IIIInformation Services Group Inc.COM416$1.00K<0.1%+403+3,100.0%AddedHistory
IIINInsteel Industries IncCOM41$1.00K<0.1%+41NewHistory
PPSIPioneer Power Solutions, Inc.COM NEW305$1.00K<0.1%−14,450−97.9%ReducedHistory
RLAYRelay Therapeutics, Inc.COM150$1.00K<0.1%+150NewHistory
STEXStreamex Corp.COM1,889$1.00K<0.1%+1,889NewHistory
TYRATyra Biosciences, Inc.COM100$1.00K<0.1%+100NewHistory
USAUU.S. Gold Corp.COM NEW409$1.00K<0.1%+240+142.0%AddedHistory
HOWLWerewolf Therapeutics, Inc.COM202$1.00K<0.1%−5,496−96.5%ReducedHistory
XBITXBiotech Inc.COM228$1.00K<0.1%−398−63.6%ReducedHistory
YSGYatsen Holding LtdSPONSORED ADS533$1.00K<0.1%−560−51.2%ReducedConverted for a 1-for-5 splitHistory
ALGSAligos Therapeutics, Inc.COM1,104$1.00K<0.1%+1,104NewHistory
BIVIBiovie Inc.CL A NEW2,793$1.00K<0.1%−12,990−82.3%ReducedHistory
BDSXBiodesix IncCOM1,071$1.00K<0.1%+1,071NewHistory
BRKLBrookline Bancorp IncCOM180$1.00K<0.1%+180NewHistory
PRTSCarParts.com, Inc.COM838$1.00K<0.1%+257+44.2%AddedHistory
CLNNClene Inc.COMMON STOCK2,678$1.00K<0.1%−258−8.8%ReducedHistory
ENZBEnzo Biochem IncCOM881$1.00K<0.1%+881NewHistory
Immunoprecise Antibodies Ltd45257F200COM NEW1,004$1.00K<0.1%−1,648−62.1%Reduced–
INZYInozyme Pharma, Inc.COM168$1.00K<0.1%+168NewHistory
iShares Inc464286624MSCI THAILND ETF26$1.00K<0.1%−63−70.8%Reduced–
GORVLazydays Holdings, Inc.COM380$1.00K<0.1%+164+75.9%AddedHistory
PLGPlatinum Group Metals LtdCOM1,136$1.00K<0.1%+634+126.3%AddedHistory
ProShares Tr74347R313PSHS ULSHT 7-10Y44$1.00K<0.1%+44New–

Options (6,475)

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 6,475 by value.

Option positions of Simplex Trading, LLC in Q1 2024
SecurityClassPutsCalls
SPDR S&P 500 ETF Tr78462F953PUT$30.6B–
SPDR S&P 500 ETF Tr78462F903CALL–$10.1B
Invesco QQQ Tr46090E953PUT$7.82B–
NVIDIA Corporation67066G904CALL–$6.78B
NVIDIA Corporation67066G954PUT$5.76B–
iShares Tr464287957PUT$5.37B–
iShares Tr464287907CALL–$4.55B
Invesco QQQ Tr46090E903UNIT SER 1–$4.24B
Tesla Inc88160R951PUT$3.35B–
Apple Inc037833900CALL–$2.63B
Tesla Inc88160R901CALL–$2.39B
Facebook Inc30303M902CALL–$1.70B
Select Sector SPDR Tr81369Y956PUT$1.60B–
Amazon Com Inc023135906CALL–$1.54B
Apple Inc037833950PUT$1.43B–
Alphabet Inc02079K905CALL–$1.35B
Facebook Inc30303M952PUT$1.33B–
Microsoft Corp594918904CALL–$1.31B
Microsoft Corp594918954PUT$1.28B–
SPDR Gold Tr78463V907CALL–$1.15B
Select Sector SPDR Tr81369Y906CALL–$1.09B
Alphabet Inc02079K955PUT$1.05B–
Amazon Com Inc023135956PUT$923.1M–
SPDR Gold Tr78463V957GOLD SHS$897.2M–
Booking Holdings Inc09857L958PUT$839.5M–
Advanced Micro Devices Inc007903957PUT$803.8M–
Broadcom Inc11135F901CALL–$787.6M
SPDR Ser Tr78464A958PUT$735.6M–
MicroStrategy Inc594972908CALL–$724.9M
Advanced Micro Devices Inc007903907CALL–$705.5M
Super Micro Computer Inc86800U954PUT$678.2M–
Alibaba Group Hldg Ltd01609W902CALL–$649.5M
VanEck Vectors ETF Tr92189F902CALL–$641.8M
VanEck Vectors ETF Tr92189F952PUT$639.0M–
Broadcom Inc11135F951PUT$615.3M–
Netflix Inc64110L956PUT$596.6M–
Taiwan Semiconductor Mfg Ltd874039900CALL–$555.3M
MicroStrategy Inc594972958PUT$547.3M–
Costco WHSL Corp New22160K955PUT$543.8M–
Micron Technology Inc595112903CALL–$493.2M
SPDR Ser Tr78464A908CALL–$473.9M
iShares Tr464288955PUT$466.3M–
Costco WHSL Corp New22160K905CALL–$455.5M
Netflix Inc64110L906CALL–$451.2M
Super Micro Computer Inc86800U904CALL–$435.1M
Boeing Co097023905COM–$418.2M
Lilly Eli & Co532457908CALL–$381.2M
SPDR Dow Jones Indl Average78467X959PUT$380.7M–
Coinbase Global Inc19260Q957PUT$380.6M–
Micron Technology Inc595112953PUT$379.8M–
Taiwan Semiconductor Mfg Ltd874039950PUT$376.1M–
JPMorgan Chase & Co46625H905CALL–$375.7M
Coinbase Global Inc19260Q907CALL–$345.7M
Citigroup Inc172967904CALL–$339.8M
Lilly Eli & Co532457958PUT$330.6M–
Exxon Mobil Corp30231G902CALL–$316.9M
Disney Walt Co254687906CALL–$304.6M
Boeing Co097023955PUT$285.9M–
Berkshire Hathaway Inc Del084670902CALL–$271.0M
JPMorgan Chase & Co46625H955PUT$268.7M–
Adobe Systems Incorporated00724F901CALL–$267.9M
PayPal Hldgs Inc70450Y903CALL–$266.0M
Palo Alto Networks Inc697435905CALL–$262.1M
ASML Holding N VN07059900CALL–$258.3M
Salesforce Com Inc79466L902CALL–$257.3M
BK of America Corp060505954PUT$256.9M–
Salesforce Com Inc79466L952PUT$255.9M–
SPDR Dow Jones Indl Average78467X909CALL–$254.7M
Pinduoduo Inc722304902CALL–$253.0M
Goldman Sachs Group Inc38141G954PUT$252.5M–
Palo Alto Networks Inc697435955PUT$246.8M–
Adobe Systems Incorporated00724F951PUT$244.3M–
Disney Walt Co254687956PUT$237.6M–
Exxon Mobil Corp30231G952PUT$228.8M–
Chevron Corp New166764900CALL–$228.4M
CrowdStrike Hldgs Inc22788C955PUT$215.8M–
ASML Holding N VN07059950PUT$211.8M–
Qualcomm Inc747525903CALL–$208.7M
International Business Machs459200901CALL–$205.9M
Alibaba Group Hldg Ltd01609W952PUT$205.2M–
Uber Technologies Inc90353T900CALL–$204.2M
Oracle Corp68389X905CALL–$202.0M
Arm Holdings PLC042068905CALL–$193.2M
Uber Technologies Inc90353T950PUT$191.4M–
Pfizer Inc717081953PUT$186.5M–
Visa Inc92826C909CALL–$185.4M
Intel Corp458140900CALL–$183.9M
Intel Corp458140950PUT$181.8M–
PayPal Hldgs Inc70450Y953PUT$180.4M–
Goldman Sachs Group Inc38141G904CALL–$179.9M
Caterpillar Inc149123951PUT$178.0M–
Vanguard Index FDS922908959PUT$174.2M–
SPDR Ser Tr78468R907CALL–$174.1M
Pinduoduo Inc722304952PUT$173.6M–
Nike Inc654106953PUT$171.5M–
Chipotle Mexican Grill Inc169656955PUT$168.0M–
BK of America Corp060505904CALL–$167.1M
Citigroup Inc172967954PUT$166.1M–
iShares Silver Tr46428Q909CALL–$165.7M
Chipotle Mexican Grill Inc169656905CALL–$162.8M

Sold out since Q4 2023 (960)

Positions held at the end of Q4 2023 that are gone from this filing.

The largest 100 of 960 by value last quarter.

Positions of Simplex Trading, LLC sold out since Q4 2023
SecurityClassShares in Q4 2023Value in Q4 2023% of portfolio in Q4 2023History
CCitigroup IncStock1,075,290$55.3M1.7%History
State Street Utilities Select Sector SPDR ETF81369Y886ETF798,823$50.6M1.6%–
iShares Tr464287184CHINA LG-CAP ETF1,594,712$38.3M1.2%–
PGProcter & Gamble CoStock252,247$37.0M1.2%History
TSLATesla, Inc.Stock127,962$31.8M1.0%History
iShares Russell 2000 ETF464287655ETF132,945$26.7M0.8%–
DALDelta Air Lines, Inc.COM NEW534,529$21.5M0.7%History
State Street Technology Select Sector SPDR ETF81369Y803ETF109,307$21.0M0.7%–
GLDSPDR Gold TrustETF105,898$20.2M0.6%History
COINCoinbase Global, Inc.COM CL A113,097$19.7M0.6%History
WFCWells Fargo & CompanyStock352,816$17.4M0.5%History
FDXFedEx CorpStock66,578$16.8M0.5%History
ORCLOracle CorpStock151,474$16.0M0.5%History
iShares Tr464287234MSCI EMG MKT ETF340,959$13.7M0.4%–
State Street Consumer Staples Select Sector SPDR ETF81369Y308ETF174,797$12.6M0.4%–
XOMExxonMobil Holdings CorpCOM111,025$11.1M0.3%History
RTXRTX CorpStock129,990$10.9M0.3%History
MPCMarathon Petroleum CorpStock71,045$10.5M0.3%History
STZConstellation Brands, Inc.Stock42,827$10.4M0.3%History
APOApollo Global Management, Inc.COM101,840$9.49M0.3%History
ZZillow Group, Inc.CL C CAP STK162,285$9.39M0.3%History
TXNTexas Instruments IncStock51,516$8.78M0.3%History
BPBP PLCADR226,137$8.01M0.2%History
PGRProgressive CorpStock44,641$7.11M0.2%History
IMGNImmunoGen, Inc.COM211,467$6.27M0.2%History
SONYSony Group CorpSPONSORED ADR65,683$6.22M0.2%History
REGNRegeneron Pharmaceuticals, Inc.COM6,984$6.13M0.2%History
iShares Tr464288588MBS ETF64,585$6.08M0.2%–
PEverpure, Inc.CL A158,569$5.65M0.2%History
WMBWilliams Companies, Inc.COM154,923$5.39M0.2%History
PENNPENN Entertainment, Inc.COM205,989$5.36M0.2%History
PARPar Technology CorpCOM118,947$5.18M0.2%History
HSYHershey CoCOM27,729$5.17M0.2%History
LYFTLyft, Inc.CL A COM341,977$5.13M0.2%History
LINLinde PLCStock12,353$5.07M0.2%History
LNGCheniere Energy, Inc.COM NEW29,477$5.03M0.2%History
SGISomnigroup International Inc.COM97,818$4.99M0.2%History
PFSIPennyMac Financial Services, Inc.COM54,647$4.83M0.2%History
GKOSGLAUKOS CorpCOM60,734$4.83M0.2%History
iShares Tr46428743220 YR TR BD ETF48,567$4.80M0.1%–
VanEck ETF Trust92189F791JUNIOR GOLD MINE121,805$4.62M0.1%–
SUSuncor Energy IncStock143,978$4.61M0.1%History
GAPGap IncCOM218,460$4.57M0.1%History
ELVElevance Health, Inc.Stock9,178$4.33M0.1%History
KOCoca Cola CoStock71,584$4.22M0.1%History
MSTRStrategy IncStock6,632$4.19M0.1%History
CBChubb LtdStock18,348$4.15M0.1%History
LYBLyondellBasell Industries N.V.SHS - A -43,559$4.14M0.1%History
SAPSAP SEADR26,249$4.06M0.1%History
AYXAlteryx, Inc.COM CL A85,948$4.05M0.1%History
IQVIQVIA Holdings Inc.Stock16,813$3.89M0.1%History
WPCW. P. Carey Inc.COM59,991$3.89M0.1%History
ANSSAnsys IncCOM10,481$3.80M0.1%History
FIVNFive9, Inc.COM48,211$3.79M0.1%History
STNGScorpio Tankers Inc.SHS60,594$3.68M0.1%History
CHWYChewy, Inc.CL A151,125$3.57M0.1%History
ESTCElastic N.V.ORD SHS31,583$3.56M0.1%History
URIUnited Rentals, Inc.COM5,973$3.42M0.1%History
Vanguard Dividend Appreciation ETF921908844ETF19,906$3.39M0.1%–
UVXYProShares Trust IIULTRA VIX SHORT399,683$3.37M0.1%History
Vanguard Intl Equity Index F922042874FTSE EUROPE ETF51,722$3.33M0.1%–
AEMAgnico Eagle Mines LtdStock56,734$3.11M0.1%History
ADSKAutodesk, Inc.COM12,415$3.02M0.1%History
CWHCamping World Holdings, Inc.CL A114,273$3.00M0.1%History
ProShares Tr74347X864ULTRPRO S&P50053,990$2.96M0.1%–
DRIDarden Restaurants IncCOM17,747$2.92M0.1%History
MRTXMirati Therapeutics, Inc.COM49,585$2.91M0.1%History
BWXTBWX Technologies, Inc.COM37,536$2.88M0.1%History
NXSTNexstar Media Group, Inc.COMMON STOCK18,348$2.88M0.1%History
USBUS Bancorp DECOM NEW64,345$2.78M0.1%History
EVHEvolent Health, Inc.CL A82,478$2.72M0.1%History
APLSApellis Pharmaceuticals, Inc.COM44,954$2.69M0.1%History
MBLYMobileye Global Inc.Stock62,026$2.69M0.1%History
GGALGrupo Financiero Galicia SASPONSORED ADR155,337$2.68M0.1%History
TXRHTexas Roadhouse, Inc.COM21,521$2.63M0.1%History
ABBVAbbVie Inc.Stock16,776$2.60M0.1%History
KBRKBR, Inc.COM46,315$2.57M0.1%History
COPConocoPhillipsStock21,936$2.55M0.1%History
NVSNovartis AGADR24,703$2.49M0.1%History
ZMZoom Communications, Inc.Stock34,533$2.48M0.1%History
FNFFidelity National Financial, Inc.COM SHS47,803$2.44M0.1%History
AFLAflac IncStock26,134$2.16M0.1%History
MLTXMoonLake ImmunotherapeuticsCLASS A ORD35,179$2.12M0.1%History
BCBrunswick CorpCOM21,625$2.09M0.1%History
MARMarriott International IncStock9,260$2.09M0.1%History
CMGChipotle Mexican Grill IncCOM871$1.99M0.1%History
LTHMLivent Corp.COM107,125$1.93M0.1%History
HLFHerbalife Ltd.COM SHS125,734$1.92M0.1%History
BMAMacro Bank Inc.SPON ADR B66,834$1.92M0.1%History
DGDollar General CorpCOM13,991$1.90M0.1%History
MGMMGM Resorts InternationalStock41,879$1.87M0.1%History
State Street Industrial Select Sector SPDR ETF81369Y704ETF16,233$1.85M0.1%–
SPDR Index Shs FDS78463X202ST STR EU 50 ETF38,373$1.83M0.1%–
LMTLockheed Martin CorpStock3,946$1.79M0.1%History
PODDInsulet CorpStock8,117$1.76M0.1%History
Liberty Media Corp531229789Stock61,217$1.76M0.1%–
IEPIcahn Enterprises L.P.DEPOSITARY UNIT102,125$1.75M0.1%History
RPDRapid7, Inc.COM29,435$1.68M0.1%History
PIImpinj IncCOM17,748$1.60M<0.1%History
PEBPebblebrook Hotel TrustCOM99,806$1.59M<0.1%History