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SIMPLEX TRADING, LLC

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13F filer, CIK 1488542, CHICAGO, IL

SIMPLEX TRADING, LLC reported $149,077,957,641 across 8,927 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-14. Its ten largest share positions make up 37.01% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001488542-26-000009

Period
2026-03-31
Reported value
$149B
Holdings
8,927
Top 10 weight
37.01%
New
2,204
Sold out
1,620

Largest buys vs the previous quarter

SecurityShares changeApprox. value
AMZNnew+764,884$159M
NVDAadded+768,382$134M
TSMnew+351,805$119M
GLDnew+230,612$99.2M
METAadded+167,185$95.7M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
AAPLreduced-668,957-$170M
WDCreduced-335,977-$90.9M
AVGOreduced-188,929-$58.5M
SOXLexited-1,236,517-$52M
NFLXreduced-506,158-$48.7M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Back to all 2,613 share positions

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

The largest 100 of 6,314. All 6,314

SecurityTypeAmountValueChange
STATE STR SPDR S&P 500 ETF TSTATE STR SPDR S&P 500 ETF T PUTput42,147,900$27.4B+893,700
STATE STR SPDR S&P 500 ETF TSTATE STR SPDR S&P 500 ETF T CALLcall21,650,100$14.1B+2,216,500
INVESCO QQQ TRINVESCO QQQ TR PUTput11,252,400$6.49B-4,113,000
INVESCO QQQ TRINVESCO QQQ TR CALLcall10,378,200$5.99B+839,600
ISHARES TRISHARES TR PUTput34,218,500$5.11B+661,000
ISHARES TRISHARES TR 1 3 YR TREAS BDcall33,449,000$3.87B+7,313,200
TESLA INCTESLA INC CALLcall9,196,400$3.42B-2,494,600
NVIDIA CORPORATIONNVIDIA CORPORATION PUTput19,209,500$3.35B-7,149,700
NVIDIA CORPORATIONNVIDIA CORPORATION CALLcall19,080,700$3.33B-9,605,500
TESLA INCTESLA INC PUTput8,312,400$3.09B-4,530,300
SPDR GOLD TRSPDR GOLD TR CALLcall5,490,500$2.36B-931,200
META PLATFORMS INCMETA PLATFORMS INC CALLcall4,109,700$2.35B-496,200
APPLE INCAPPLE INC CALLcall8,760,100$2.22B-525,800
ALPHABET INCALPHABET INC CALLcall7,197,200$2.07B-1,747,000
SPDR GOLD TRSPDR GOLD TR PUTput3,830,900$1.65B-320,700
MICROSOFT CORPMICROSOFT CORP CALLcall4,178,400$1.55B+1,091,200
APPLE INCAPPLE INC PUTput6,022,900$1.53B-1,723,000
AMAZON COM INCAMAZON COM INC CALLcall7,000,500$1.46B+1,139,800
ALPHABET INCALPHABET INC PUTput5,053,100$1.45B-2,304,200
META PLATFORMS INCMETA PLATFORMS INC PUTput2,501,500$1.43B+75,900
ISHARES SILVER TRISHARES SILVER TR CALLcall19,990,100$1.36B+2,085,200
SELECT SECTOR SPDR TRSELECT SECTOR SPDR TR Optionput15,375,700$1.02B-1,405,400
AMAZON COM INCAMAZON COM INC PUTput4,388,700$914M+30,600
MICROSOFT CORPMICROSOFT CORP PUTput2,366,200$876M+122,800
VANECK ETF TRUSTVANECK ETF TRUST MORTGAGE REITput3,276,100$820M-1,459,800
SELECT SECTOR SPDR TRSELECT SECTOR SPDR TR CALLcall12,980,200$773M+1,461,900
NETFLIX INC.NETFLIX INC. PUTput7,568,800$728M-2,491,100
ISHARES SILVER TRISHARES SILVER TR PUTput10,536,200$718M-774,000
MICRON TECHNOLOGY INCMICRON TECHNOLOGY INC PUTput2,117,000$715M+375,900
NETFLIX INC.NETFLIX INC. CALLcall7,413,400$713M-2,311,400
PALANTIR TECHNOLOGIES INCPALANTIR TECHNOLOGIES INC PUTput4,851,200$710M-1,221,100
ADVANCED MICRO DEVICES INCADVANCED MICRO DEVICES INC PUTput3,480,900$708M-305,300
MICRON TECHNOLOGY INCMICRON TECHNOLOGY INC CALLcall2,027,800$685M+627,200
STATE STR SPDR DOW JONES INDSTATE STR SPDR DOW JONES IND CALLcall1,468,000$680M+781,700
BROADCOM INCBROADCOM INC PUTput2,097,100$649M-1,560,800
ADVANCED MICRO DEVICES INCADVANCED MICRO DEVICES INC CALL JUL 550call2,947,600$600M-1,619,100
PALANTIR TECHNOLOGIES INCPALANTIR TECHNOLOGIES INC CALLcall3,985,500$583M-2,181,600
BROADCOM INCBROADCOM INC CALLcall1,679,500$520M-921,100
UNITEDHEALTH GROUP INCUNITEDHEALTH GROUP INC CALLcall1,919,000$519M-868,700
STRATEGY INCSTRATEGY INC COM NEWput4,152,700$517M+301,500
ISHARES TRISHARES TR PUTput6,323,600$509M+996,000
ISHARES BITCOIN TRUST ETFISHARES BITCOIN TRUST ETF CALLcall13,159,700$506M-4,730,400
TAIWAN SEMICONDUCTOR MANUFACTAIWAN SEMICONDUCTOR MANUFAC PUTput1,475,000$498Mnew
UNITED STS OIL FD LPUNITED STS OIL FD LP CALLput3,279,200$417M+2,759,700
VANECK ETF TRUSTVANECK ETF TRUST MORTGAGE REITcall2,710,700$401M+175,900
ORACLE CORPORACLE CORP PUTput2,604,900$383M+372,300
ISHARES BITCOIN TRUST ETFISHARES BITCOIN TRUST ETF PUTput9,930,300$382M+1,269,800
ORACLE CORPORACLE CORP CALLcall2,392,600$352M-484,800
ISHARES INCISHARES INC CALLcall6,594,400$341M+2,752,700
ALIBABA GROUP HLDG LTDALIBABA GROUP HLDG LTD PUTput2,657,200$333M+98,000
UNITEDHEALTH GROUP INCUNITEDHEALTH GROUP INC PUTput1,160,600$314M-463,300
INTEL CORPINTEL CORP CALLcall6,898,000$304M-4,428,800
ALIBABA GROUP HLDG LTDALIBABA GROUP HLDG LTD CALLcall2,418,700$303M-1,064,300
KRANESHARES TRUSTKRANESHARES TRUST CALLcall9,703,100$276M+4,336,700
EXXON MOBIL CORPEXXON MOBIL CORP CALLcall1,587,500$269M+553,800
ISHARES INCISHARES INC PUTput3,741,800$267M+1,585,600
SPDR SERIES TRUSTSPDR SERIES TRUST PUTput3,161,400$265M-1,872,600
UNITED STS OIL FD LPUNITED STS OIL FD LP CALLcall2,021,300$257M+1,749,400
TAIWAN SEMICONDUCTOR MANUFACTAIWAN SEMICONDUCTOR MANUFAC CALLcall755,000$255Mnew
ASML HLDG NVASML HLDG NV PUTput180,200$238M-84,500
GOLDMAN SACHS GROUP INCGOLDMAN SACHS GROUP INC CALLcall271,000$229M+66,200
EXXON MOBIL CORPEXXON MOBIL CORP CALLput1,305,700$222M+57,500
JPMORGAN CHASE & COJPMORGAN CHASE & CO PUTput752,200$221M+18,600
GOLDMAN SACHS GROUP INCGOLDMAN SACHS GROUP INC Optionput237,600$201M-59,600
COREWEAVE INCCOREWEAVE INC CALLcall2,535,100$196M+681,900
CITIGROUP INCCITIGROUP INC PUTput1,701,500$193M-540,800
SPDR SERIES TRUSTSPDR SERIES TRUST CALLcall1,865,500$183M-813,700
INTEL CORPINTEL CORP PUTput4,134,300$182M-1,458,600
SANDISK CORPSANDISK CORP PUTput286,200$182M+54,500
CITIGROUP INCCITIGROUP INC CALLcall1,599,300$181M-1,068,600
BERKSHIRE HATHAWAY INC DELBERKSHIRE HATHAWAY INC DEL L CALLcall377,000$181M-264,300
STRATEGY INCSTRATEGY INC CALLcall1,435,600$176M-1,399,600
COREWEAVE INCCOREWEAVE INC CALLput2,262,000$175M+832,200
COINBASE GLOBAL INCCOINBASE GLOBAL INC PUTput996,500$174M+132,900
SANDISK CORPSANDISK CORP CALLcall262,500$167M+177,900
WALMART INCWALMART INC CALLcall1,325,600$165M-141,800
CARVANA COCARVANA CO CALLcall512,200$161M+111,800
STATE STR SPDR DOW JONES INDSTATE STR SPDR DOW JONES IND UT SER 1put339,500$157M-611,500
CHEVRON CORPORATIONCHEVRON CORPORATION CALLcall745,800$154M+192,800
CROWDSTRIKE HLDGS INCCROWDSTRIKE HLDGS INC CALLcall392,700$153M-19,100
ASML HLDG NVASML HLDG NV CALLcall111,200$147M-25,500
COSTCO WHOLESALE CORPORATIONCOSTCO WHOLESALE CORPORATION CALLcall140,800$140M-194,900
BANK OF AMER CORPBANK OF AMER CORP CALLcall2,802,000$137M+711,900
BOEING COBOEING CO CALLcall686,300$137M-521,400
BOEING COBOEING CO PUTput686,000$137M-258,700
SALESFORCE INCSALESFORCE INC CALLcall679,200$127M-5,100
SOFI TECHNOLOGIES INCSOFI TECHNOLOGIES INC CALLcall7,969,500$127M+2,759,500
CARVANA COCARVANA CO CALLput402,100$126M-67,100
DIREXION SHARES ETF TRUSTDIREXION SHARES ETF TRUST PUTput2,537,600$126M-1,325,400
PAYPAL HLDGS INCPAYPAL HLDGS INC CALLcall2,734,700$124M-1,069,800
WALMART INCWALMART INC PUTput994,800$124M-1,061,400
APPLOVIN CORPAPPLOVIN CORP PUTput307,700$122M+5,100
ARM HOLDINGS PLCARM HOLDINGS PLC PUTput779,400$118M-336,400
ROBINHOOD MKTS INCROBINHOOD MKTS INC CALLcall1,655,600$115M-1,398,600
PROSHARES TRPROSHARES TR CALLcall2,462,100$113M+113,600
BANK OF AMER CORPBANK OF AMER CORP PUTput2,310,300$113M-1,033,500
PDD HOLDINGS INCPDD HOLDINGS INC CALLcall1,100,800$112M-1,028,800
CISCO SYS INCCISCO SYS INC CALLcall1,444,300$112M-175,500
COINBASE GLOBAL INCCOINBASE GLOBAL INC CALLcall640,900$112M-389,000
BERKSHIRE HATHAWAY INC DELBERKSHIRE HATHAWAY INC DEL PUTput233,300$112M-65,300

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
GTYGETTY RLTY CORP NEW25$684shares
INOGEN INCINOGEN INC100$672put
DMC GLOBAL INCDMC GLOBAL INC100$669put
CELULARITY INCCELULARITY INC600$666call
HF FOODS GROUP INCHF FOODS GROUP INC300$644call
SACHSACHEM CAP CORP616$640shares
SPXTPROSHARES TR6$623shares
CNYAISHARES TR18$622shares
CASTOR MARITIME INCCASTOR MARITIME INC300$620put
ATNIATN INTL INC27$615shares
BANCO SANTANDER BRASIL S ABANCO SANTANDER BRASIL S A100$611call
1STDIBS COM INC1STDIBS COM INC100$599call
SDPPROSHARES TR47$586shares
OPITQOFFICE PPTYS INCOME TR COM SHS45,465$581shares
BBUCBROOKFIELD BUSINESS HOLDINGS16$574shares
C4 THERAPEUTICS INCC4 THERAPEUTICS INC300$573put
IJSISHARES TR5$568shares
TOWNTOWNEBANK PORTSMOUTH VA17$567shares
RPARTIDAL TRUST I26$557shares
DATACENTREX INCDATACENTREX INC200$550call
ZYNEX INCZYNEX INC4,200$529call
AMBER INTL HLDG LTDAMBER INTL HLDG LTD300$519put
ARCOARCOS DORADOS HLDGS INC70$513shares
CFFNCAPITOL FED FINL INC75$510shares
AMERICAN WELL CORPAMERICAN WELL CORP100$491call
ADAPYADAPTIMMUNE THERAPEUTICS PLC S18,610$483shares
ENVVENO MEDICAL CORPORATIONENVVENO MEDICAL CORPORATION1,500$481call
CCSCENTURY COMMUNITIES INC8$474shares
WIMI HOLOGRAM CLOUD INCWIMI HOLOGRAM CLOUD INC200$474put
PIONEER PWR SOLUTIONS INCPIONEER PWR SOLUTIONS INC100$473put
ALTA EQUIPMENT GROUP INCALTA EQUIPMENT GROUP INC100$459call
TRCTEJON RANCH CO29$457shares
Direxion Daily TSLA Bear 1X…Direxion Daily TSLA Bear 1X Shares89$451shares
CUREVAC N VCUREVAC N V100$451put
EWCZEUROPEAN WAX CTR INC124$446shares
AMDDDIREXION SHARES ETF TRUST46$432shares
ABVCABVC BIOPHARMA INC196$417shares
TRADR 2X LONG SMR DAILY ETFTRADR 2X LONG SMR DAILY ETF40$413shares
VISTEON CORPVISTEON CORP100$409put
TELEFONICA SA-SPON ADRTELEFONICA SA-SPON ADR100$405put
ETQWORLD FDS TR T-REX 2X INVERSE9$388shares
SUNOPTA INCSUNOPTA INC100$380put
GERDAU SAGERDAU SA100$369put
GSHDGOOSEHEAD INS INC5$368shares
FAFIRST ADVANTAGE CORP NEW23$334shares
APPLIED THERAPEUTICS INCAPPLIED THERAPEUTICS INC3,300$330put
CODEXIS INCCODEXIS INC200$326put
MOGO INCMOGO INC300$321call
FORGE GLOBAL HOLDINGS INCFORGE GLOBAL HOLDINGS INC1,300$321put
FUTUREFUEL CORPFUTUREFUEL CORP100$319call
INNSUMMIT HOTEL PPTYS65$316shares
NINE ENERGY SERVICE INCNINE ENERGY SERVICE INC900$311put
AVADEL PHARMACEUTICALS PLCAVADEL PHARMACEUTICALS PLC200$310call
CERTCERTARA INC35$308shares
ESGUISHARES TR2$297shares
CO-DIAGNOSTICS INCCO-DIAGNOSTICS INC1,700$286call
CNTBCONNECT BIOPHARMA HLDGS LTD98$276shares
CNTYCENTURY CASINOS INC200$266shares
TCMDTACTILE SYS TECHNOLOGY INC9$261shares
CHERRY HILL MTG INVT CORPCHERRY HILL MTG INVT CORP100$254put
AVADEL PHARMACEUTICALS PLCAVADEL PHARMACEUTICALS PLC200$245put
JPOTIDAL TRUST II15$240shares
PAVMED INCPAVMED INC1,048$231shares
LIFEWARD LTDLIFEWARD LTD400$230put
URBAN-GRO INCURBAN-GRO INC800$224call
TNCTENNANT CO3$221shares
BBDCBARINGS BDC INC24$220shares
RIOXTIDAL TR II DEFIANCE DAILY TAR31$218shares
HAIN CELESTIAL GROUP INCHAIN CELESTIAL GROUP INC200$214put
HFWAHERITAGE FINL CORP WASH9$212shares
GTPEGOLDMAN SACHS ETF TR4$206shares
NECBNORTHEAST CMNTY BANCORP INC9$203shares
TKNOALPHA TEKNOVA INC48$182shares
PROPHASE LABS INCPROPHASE LABS INC400$179put
CLASSOVER HLDGS INCCLASSOVER HLDGS INC1,000$177put
CO-DIAGNOSTICS INCCO-DIAGNOSTICS INC1,000$168put
XBITXBIOTECH INC67$160shares
VICEADVISORSHARES TR5$158shares
SOHO HOUSE & CO INCSOHO HOUSE & CO INC100$153call
SOPHSOPHIA GENETICS SA31$144shares
AAPDDIREXION SHARES ETF TRUST11$144shares
OFFICE PPTYS INCOME TROFFICE PPTYS INCOME TR11,200$143put
WIDEOPENWEST INCWIDEOPENWEST INC14,200$142put
PURPLE BIOTECH LTDPURPLE BIOTECH LTD200$131put
LIFLIFE360 INC2$128shares
ZEUSOLYMPIC STEEL INC3$128shares
CFRCULLEN FROST BANKERS INC1$126shares
ZYNEX INCZYNEX INC1,000$126put
SONDQSONDER HLDGS INC CL A NEW12,590$125shares
SYPRSYPRIS SOLUTIONS INC51$124shares
VIVANI MEDICAL INCVIVANI MEDICAL INC100$123put
TGTREDEGAR CORP17$122shares
THFFFIRST FINANCIAL CORPORATION2$120shares
SPHERE 3D CORP NEWSPHERE 3D CORP NEW384$114shares
MIND C T I LTDMIND C T I LTD100$114put
DEEPETF SER SOLUTIONS3$107shares
PSQ HOLDINGS INCPSQ HOLDINGS INC100$103put
TREEHOUSE FOODS INCTREEHOUSE FOODS INC2,300$102put
LOOP INDS INCLOOP INDS INC100$100put
PAMPAMPA ENERGIA SA1$88shares
FSPFRANKLIN STR PPTYS CORP88$83shares
SMCLGRANITESHARES ETF TR16$72shares
PHARMACYTE BIOTECH INCPHARMACYTE BIOTECH INC100$72put
XOMOTIDAL TRUST II6$70shares
BULUETF OPPORTUNITIES TR T-REX 2X12$68shares
AIVCAMPLIFY ETF TR1$67shares
CLEARSIGN TECHNOLOGIES CORPCLEARSIGN TECHNOLOGIES CORP100$55put
CARPARTS COM INCCARPARTS COM INC100$50put
SONDER HOLDINGS INCSONDER HOLDINGS INC4,900$49put
URBAN-GRO INCURBAN-GRO INC165$46shares
MNDOMIND C T I LTD39$44shares
DESWISDOMTREE TR1$33shares
INVEINVE TECHNOLOGIES INC7$26shares
KREFKKR REAL ESTATE FIN TR INC2$16shares
NUGTHEMES ETF TR1$16shares
CENNTRO INCCENNTRO INC100$13put
CLASSOVER HLDGS INCCLASSOVER HLDGS INC71$12shares
MNRMACH NATURAL RESOURCES LP1$11shares
SONDER HOLDINGS INCSONDER HOLDINGS INC100$1call
SAPIENS INTERNATIONAL CORPSAPIENS INTERNATIONAL CORP100$0shares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001488542-26-000009 base2026-05-14acceptance time not in the bulk data set