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SIMPLEX TRADING, LLC

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13F filer, CIK 1488542, CHICAGO, IL

SIMPLEX TRADING, LLC reported $170,565,031,585 across 9,154 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-12. Its ten largest share positions make up 32.87% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001488542-26-000011

Period
2026-06-30
Reported value
$171B
Holdings
9,154
Top 10 weight
32.87%
New
1,775
Sold out
1,548

Largest buys vs the previous quarter

SecurityShares changeApprox. value
IWMadded+520,581$156M
TLTadded+1,252,985$108M
AAPLadded+219,765$63.6M
MUnew+52,682$60.8M
TSLAadded+130,488$54.9M

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
AMDreduced-224,530-$130M
SPYreduced-149,310-$112M
TSMreduced-204,398-$97.6M
METAreduced-169,560-$95.5M
UNHreduced-221,701-$92.1M

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 2,733 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 6,421. All 6,421

SecurityTypeAmountValueChange
STATE STR SPDR S&P 500 ETF TSTATE STR SPDR S&P 500 ETF T PUTput33,407,300$24.9B-8,740,600
STATE STR SPDR S&P 500 ETF TSTATE STR SPDR S&P 500 ETF T CALLcall22,725,000$17B+1,074,900
INVESCO QQQ TRINVESCO QQQ TR PUTput13,765,500$10.1B+2,513,100
INVESCO QQQ TRINVESCO QQQ TR CALLcall10,904,800$8.03B+526,600
ISHARES TRISHARES TR PUTput39,367,200$7.76B+5,148,700
MICRON TECHNOLOGY INCMICRON TECHNOLOGY INC PUTput3,140,900$3.63B+1,023,900
NVIDIA CORPORATIONNVIDIA CORPORATION CALLcall17,519,600$3.51B-1,561,100
ISHARES TRISHARES TR 1 3 YR TREAS BDcall26,912,500$3.34B-6,536,500
NVIDIA CORPORATIONNVIDIA CORPORATION PUTput16,385,300$3.28B-2,824,200
TESLA INCTESLA INC CALLcall7,001,500$2.94B-2,194,900
TESLA INCTESLA INC PUTput5,799,800$2.44B-2,512,600
ALPHABET INCALPHABET INC CALLcall6,656,100$2.37B-541,100
APPLE INCAPPLE INC CALLcall8,168,800$2.36B-591,300
MICRON TECHNOLOGY INCMICRON TECHNOLOGY INC CALLcall1,906,800$2.2B-121,000
META PLATFORMS INCMETA PLATFORMS INC CALLcall3,620,200$2.04B-489,500
SANDISK CORPSANDISK CORP PUTput864,500$1.97B+578,300
ADVANCED MICRO DEVICES INCADVANCED MICRO DEVICES INC PUTput3,374,900$1.96B-106,000
ALPHABET INCALPHABET INC PUTput5,428,100$1.93B+375,000
MICROSOFT CORPMICROSOFT CORP CALLcall4,655,800$1.74B+477,400
APPLE INCAPPLE INC PUTput5,954,700$1.72B-68,200
ADVANCED MICRO DEVICES INCADVANCED MICRO DEVICES INC CALL JUL 550call2,951,000$1.71B+3,400
VANECK ETF TRUSTVANECK ETF TRUST MORTGAGE REITput3,966,700$1.62B+690,600
SPDR GOLD TRSPDR GOLD TR CALLcall3,937,600$1.45B-1,552,900
AMAZON COM INCAMAZON COM INC CALLcall5,219,400$1.24B-1,781,100
META PLATFORMS INCMETA PLATFORMS INC PUTput2,084,500$1.17B-417,000
SELECT SECTOR SPDR TRSELECT SECTOR SPDR TR Optionput12,991,800$963M-2,383,900
MICROSOFT CORPMICROSOFT CORP PUTput2,425,900$905M+59,700
SELECT SECTOR SPDR TRSELECT SECTOR SPDR TR CALLcall12,448,000$883M-532,200
AMAZON COM INCAMAZON COM INC PUTput3,486,200$831M-902,500
VANECK ETF TRUSTVANECK ETF TRUST MORTGAGE REITcall3,268,100$805M+557,400
STATE STR SPDR DOW JONES INDSTATE STR SPDR DOW JONES IND CALLcall1,503,000$785M+35,000
BROADCOM INCBROADCOM INC PUTput1,997,300$754M-99,800
INTEL CORPINTEL CORP PUTput5,334,900$745M+1,200,600
SPDR GOLD TRSPDR GOLD TR PUTput2,008,600$740M-1,822,300
INTEL CORPINTEL CORP CALLcall5,185,300$724M-1,712,700
BROADCOM INCBROADCOM INC CALLcall1,841,100$695M+161,600
TAIWAN SEMICONDUCTOR MANUFACTAIWAN SEMICONDUCTOR MANUFAC PUTput1,320,000$630M-155,000
SANDISK CORPSANDISK CORP CALLcall258,700$588M-3,800
ISHARES SILVER TRISHARES SILVER TR CALLcall10,916,100$584M-9,074,000
PALANTIR TECHNOLOGIES INCPALANTIR TECHNOLOGIES INC PUTput4,692,000$547M-159,200
NETFLIX INC.NETFLIX INC. CALLcall7,425,500$530M+12,100
UNITEDHEALTH GROUP INCUNITEDHEALTH GROUP INC CALLcall1,223,100$508M-695,900
NETFLIX INC.NETFLIX INC. PUTput6,642,600$474M-926,200
PALANTIR TECHNOLOGIES INCPALANTIR TECHNOLOGIES INC CALLcall3,628,900$423M-356,600
ISHARES BITCOIN TRUST ETFISHARES BITCOIN TRUST ETF CALLcall12,461,100$415M-698,600
UNITEDHEALTH GROUP INCUNITEDHEALTH GROUP INC PUTput976,200$406M-184,400
SPACE EXPLORATION TECHN CORPSPACE EXPLORATION TECHN CORP CALLcall2,348,600$401Mnew
MARVELL TECHNOLOGY INCMARVELL TECHNOLOGY INC PUTput1,326,300$395M+332,200
ORACLE CORPORACLE CORP PUTput2,619,100$384M+14,200
DIREXION SHARES ETF TRUSTDIREXION SHARES ETF TRUST PUTput1,621,800$383M-915,800
ISHARES BITCOIN TRUST ETFISHARES BITCOIN TRUST ETF PUTput11,494,600$383M+1,564,300
ORACLE CORPORACLE CORP CALLcall2,416,200$354M+23,600
NEBIUS GROUP N.V.NEBIUS GROUP N.V. SHS CLASS Aput1,229,800$340M+544,900
SPACE EXPLORATION TECHN CORPSPACE EXPLORATION TECHN CORP PUTput1,890,100$323Mnew
SPDR SERIES TRUSTSPDR SERIES TRUST PUTput3,232,400$315M+71,000
ISHARES SILVER TRISHARES SILVER TR PUTput5,787,600$309M-4,748,600
ISHARES INCISHARES INC CALLcall5,313,300$302M-1,281,100
ARM HOLDINGS PLCARM HOLDINGS PLC PUTput822,600$292M+43,200
STRATEGY INCSTRATEGY INC COM NEWput3,243,700$282M-909,000
TAIWAN SEMICONDUCTOR MANUFACTAIWAN SEMICONDUCTOR MANUFAC CALLcall587,300$280M-167,700
ISHARES INCISHARES INC PUTput2,630,600$278M-1,111,200
CROWDSTRIKE HLDGS INCCROWDSTRIKE HLDGS INC CALLcall334,000$255M-58,700
STATE STR SPDR DOW JONES INDSTATE STR SPDR DOW JONES IND UT SER 1put470,400$246M+130,900
GOLDMAN SACHS GROUP INCGOLDMAN SACHS GROUP INC CALLcall240,900$244M-30,100
MARVELL TECHNOLOGY INCMARVELL TECHNOLOGY INC CALLcall791,000$236M-10,300
CISCO SYS INCCISCO SYS INC PUTput1,997,400$235M+758,400
UNITED STS OIL FD LPUNITED STS OIL FD LP CALLput2,199,200$234M-1,080,000
APPLIED MATLS INCAPPLIED MATLS INC PUTput313,200$226M+71,000
SPDR SERIES TRUSTSPDR SERIES TRUST CALLcall1,789,500$226M-76,000
GOLDMAN SACHS GROUP INCGOLDMAN SACHS GROUP INC Optionput221,300$224M-16,300
ROBINHOOD MKTS INCROBINHOOD MKTS INC CALLcall2,134,200$214M+478,600
ALIBABA GROUP HLDG LTDALIBABA GROUP HLDG LTD CALLcall2,212,700$212M-206,000
JPMORGAN CHASE & COJPMORGAN CHASE & CO PUTput644,800$211M-107,400
ASML HLDG NVASML HLDG NV PUTput105,900$211M-74,300
BLOOM ENERGY CORPBLOOM ENERGY CORP PUTput681,600$206M-10,800
APPLIED MATLS INCAPPLIED MATLS INC CALLcall284,300$206M+25,200
KRANESHARES TRUSTKRANESHARES TRUST CALLcall8,252,700$203M-1,450,400
ALIBABA GROUP HLDG LTDALIBABA GROUP HLDG LTD PUTput2,112,400$203M-544,800
UNITED STS OIL FD LPUNITED STS OIL FD LP CALLcall1,874,200$199M-147,100
CARVANA COCARVANA CO CALLcall2,987,900$197M+2,475,700
DELL TECHNOLOGIES INCDELL TECHNOLOGIES INC CL Cput443,700$191M-105,200
ISHARES TRISHARES TR PUTput2,334,600$191M-3,989,000
LAM RESEARCH CORPLAM RESEARCH CORP CALL AUG 340call438,800$190M+18,800
PROSHARES TRPROSHARES TR CALLcall2,236,500$188M-225,600
LUMENTUM HLDGS INCLUMENTUM HLDGS INC PUTput219,200$188M+78,200
CITIGROUP INCCITIGROUP INC CALLcall1,329,300$186M-270,000
CITIGROUP INCCITIGROUP INC PUTput1,297,900$182M-403,600
SEAGATE TECHNOLOGY HLDNGS PLSEAGATE TECHNOLOGY HLDNGS PL ORD SHSput187,500$181M+47,900
ARM HOLDINGS PLCARM HOLDINGS PLC CALLcall499,800$177M-70,600
PROSHARES TRPROSHARES TR PUTput2,098,800$174M+408,100
COINBASE GLOBAL INCCOINBASE GLOBAL INC PUTput1,170,900$171M+174,400
CISCO SYS INCCISCO SYS INC CALLcall1,394,400$164M-49,900
DIREXION SHARES ETF TRUSTDIREXION SHARES ETF TRUST CALLcall734,100$163M-897,600
CATERPILLAR INCCATERPILLAR INC PUTput152,900$163M+47,500
WESTERN DIGITAL CORPWESTERN DIGITAL CORP COMput257,100$160M-14,900
EXXON MOBIL CORPEXXON MOBIL CORP CALLcall1,160,300$159M-427,200
ROBINHOOD MKTS INCROBINHOOD MKTS INC PUTput1,579,700$158M-6,600
JPMORGAN CHASE & COJPMORGAN CHASE & CO CALLcall475,300$156M+98,200
WALMART INCWALMART INC CALLcall1,317,400$149M-8,200
PALO ALTO NETWORKS INCPALO ALTO NETWORKS INC CALL AUG 270call433,400$148M-53,700

Sold out in Q2 2026

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

SecurityShares beforeValue beforeType
PDSBPDS BIOTECHNOLOGY CORP271$163shares
INVESTCORP CR MGMT BDC INCINVESTCORP CR MGMT BDC INC100$162call
BIOATLA INCBIOATLA INC900$144call
CAMBIUM NETWORKS CORPCAMBIUM NETWORKS CORP900$135put
DUOGTHEMES ETF TR42$133shares
BULGTHEMES ETF TR121$125shares
TSLRGRANITESHARES ETF TR6$124shares
LUNAI BIOWORKS INCLUNAI BIOWORKS INC300$122put
GOOD TIMES RESTAURANTS INCGOOD TIMES RESTAURANTS INC100$117call
VTEXVTEX29$116shares
EXACT SCIENCES CORPEXACT SCIENCES CORP25,400$115put
LITE STRATEGY INCLITE STRATEGY INC100$115put
FLUX PWR HLDGS INCFLUX PWR HLDGS INC100$107call
NGENNERVGEN PHARMA CORP27$101shares
VOLITIONRX LTDVOLITIONRX LTD500$101put
BIGYTIDAL TRUST II2$97shares
FLGRFRANKLIN TEMPLETON ETF TR3$93shares
THE BRAND HOUSE COLLECTIVE ITHE BRAND HOUSE COLLECTIVE I100$92put
EXPENSIFY INCEXPENSIFY INC100$87put
FRANKLIN TEMPLETON DIGITAL HFRANKLIN TEMPLETON DIGITAL H100$83call
TITAN MNG CORPTITAN MNG CORP100$82call
HGVHILTON GRAND VACATIONS INC2$78shares
RLYSSGA ACTIVE ETF TR2$72shares
UPLAND SOFTWARE INCUPLAND SOFTWARE INC100$66put
CLGNCOLLPLANT BIOTECHNOLOGIES LT118$63shares
DOCGO INCDOCGO INC100$62put
SKYE BIOSCIENCE INCSKYE BIOSCIENCE INC100$61put
EVCMEVERCOMMERCE INC5$57shares
EXACT SCIENCES CORPEXACT SCIENCES CORP69,900$57call
DHDEFINITIVE HEALTHCARE CORP46$56shares
EOSUETF OPPORTUNITIES TRUST60$55shares
GLIMPSE GROUP INCGLIMPSE GROUP INC100$51put
SIEBSIEBERT FINL CORP25$48shares
DIGINEX LTDDIGINEX LTD100$48put
VIRCVIRCO MFG CO7$42shares
UHTUNIVERSAL HEALTH RLTY INCOME1$40shares
CENNCENNTRO INC333$39shares
DFICDIMENSIONAL ETF TRUST1$35shares
BIOATLA INCBIOATLA INC200$32put
UEICUNIVERSAL ELECTRS INC7$28shares
NREFNEXPOINT REAL ESTATE FIN INC2$26shares
CASIFCASI PHARMACEUTICALS HLDGS INC228$25shares
HEALGLOBAL X FDS1$23shares
RCELAVITA MEDICAL INC4$14shares
MTYYGRANITESHARES ETF TR2$9shares
TEGNA INCTEGNA INC14,000$1put
CENTRAL BANCOMPANYCENTRAL BANCOMPANY100$0call
TEGNA INCTEGNA INC1,800$0call

How Q2 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 0001488542-26-000011 base2026-08-12acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
13F-HR 0001488542-26-000011 Quarter ended 2026-06-302026-08-12acceptance time not in the bulk data set
13F-HR 0001488542-26-000009 Quarter ended 2026-03-312026-05-14acceptance time not in the bulk data set
13F-HR 0001488542-26-000002 Quarter ended 2025-12-312026-02-11acceptance time not in the bulk data set
13F-HR 0001488542-25-000018 Quarter ended 2025-09-302025-11-12acceptance time not in the bulk data set
13F-HR 0001488542-25-000010 Quarter ended 2025-06-302025-08-05acceptance time not in the bulk data set
13F-HR 0001488542-25-000007 Quarter ended 2025-03-312025-05-12acceptance time not in the bulk data set
13F-HR 0001488542-25-000001 Quarter ended 2024-12-312025-02-11acceptance time not in the bulk data set
13F-HR 0001488542-24-000015 Quarter ended 2024-09-302024-11-08acceptance time not in the bulk data set
13F-HR 0001464302-24-000003 Quarter ended 2024-06-302024-07-25acceptance time not in the bulk data set
13F-HR 0001488542-24-000013 Quarter ended 2024-03-312024-04-25acceptance time not in the bulk data set
13F-HR 0001488542-24-000008 Quarter ended 2023-12-312024-02-02acceptance time not in the bulk data set
13F-HR 0001488542-23-000018 Quarter ended 2023-09-302023-11-01acceptance time not in the bulk data set
13F-HR 0001488542-23-000009 Quarter ended 2023-06-302023-08-04acceptance time not in the bulk data set
13F-HR 0001488542-23-000006 Quarter ended 2023-03-312023-04-27acceptance time not in the bulk data set
13F-HR 0001488542-23-000003 Quarter ended 2022-12-312023-02-02acceptance time not in the bulk data set
13F-HR 0001488542-22-000011 Quarter ended 2022-09-302022-11-04acceptance time not in the bulk data set
13F-HR 0001488542-22-000009 Quarter ended 2022-06-302022-08-03acceptance time not in the bulk data set
13F-HR 0001488542-22-000006 Quarter ended 2022-03-312022-05-02acceptance time not in the bulk data set
13F-HR/A 0001488542-22-000005 Quarter ended 2021-12-312022-02-23acceptance time not in the bulk data set
13F-HR 0001488542-22-000002 Quarter ended 2021-12-312022-02-04acceptance time not in the bulk data set
13F-HR 0001488542-21-000012 Quarter ended 2021-09-302021-10-28acceptance time not in the bulk data set
13F-HR 0001488542-21-000009 Quarter ended 2021-06-302021-08-12acceptance time not in the bulk data set
13F-HR 0001488542-21-000007 Quarter ended 2021-03-312021-04-26acceptance time not in the bulk data set
13F-HR 0001488542-21-000002 Quarter ended 2020-12-312021-02-02acceptance time not in the bulk data set
13F-HR 0001488542-20-000009 Quarter ended 2020-09-302020-10-14acceptance time not in the bulk data set
13F-HR 0001488542-20-000007 Quarter ended 2020-06-302020-07-13acceptance time not in the bulk data set
13F-HR 0001488542-20-000005 Quarter ended 2020-03-312020-04-29acceptance time not in the bulk data set
13F-HR 0001488542-20-000002 Quarter ended 2019-12-312020-02-05acceptance time not in the bulk data set
13F-HR 0001488542-19-000021 Quarter ended 2019-09-302019-10-15acceptance time not in the bulk data set
13F-HR 0001488542-19-000017 Quarter ended 2019-06-302019-07-26acceptance time not in the bulk data set
13F-HR 0001488542-19-000011 Quarter ended 2019-03-312019-04-18acceptance time not in the bulk data set
13F-HR 0001488542-19-000002 Quarter ended 2018-12-312019-01-16acceptance time not in the bulk data set
13F-HR 0001488542-18-000018 Quarter ended 2018-09-302018-10-23acceptance time not in the bulk data set
13F-HR 0001488542-18-000014 Quarter ended 2018-06-302018-07-30acceptance time not in the bulk data set
13F-HR 0001488542-18-000013 Quarter ended 2018-03-312018-04-26acceptance time not in the bulk data set
13F-HR 0001488542-18-000006 Quarter ended 2017-12-312018-01-10acceptance time not in the bulk data set
13F-HR 0001488542-17-000015 Quarter ended 2017-09-302017-10-25acceptance time not in the bulk data set
13F-HR 0001488542-17-000011 Quarter ended 2017-06-302017-07-12acceptance time not in the bulk data set
13F-HR 0001488542-17-000008 Quarter ended 2017-03-312017-04-21acceptance time not in the bulk data set
13F-HR 0001488542-17-000001 Quarter ended 2016-12-312017-01-11acceptance time not in the bulk data set
13F-HR 0001488542-16-000034 Quarter ended 2016-09-302016-10-07acceptance time not in the bulk data set
13F-HR 0001488542-16-000028 Quarter ended 2016-06-302016-07-18acceptance time not in the bulk data set
13F-HR 0001464302-16-000007 Quarter ended 2016-03-312016-04-14acceptance time not in the bulk data set
13F-HR 0001488542-16-000017 Quarter ended 2015-12-312016-01-20acceptance time not in the bulk data set
13F-HR 0001488542-15-000012 Quarter ended 2015-09-302015-10-08acceptance time not in the bulk data set
13F-HR 0001488542-15-000007 Quarter ended 2015-06-302015-07-08acceptance time not in the bulk data set
13F-HR 0001488542-15-000006 Quarter ended 2015-03-312015-04-21acceptance time not in the bulk data set
13F-HR 0001488542-15-000004 Quarter ended 2014-12-312015-03-04acceptance time not in the bulk data set