← Back to Discover

SIMPLEX TRADING, LLC

Period ended Sep 30, 2026 · Latest filing Nov 4, 2026

These quarterly holdings are delayed and may not include all assets or short positions. Values are from the reporting date, not current prices or purchase costs. The same security may appear in multiple rows.

Source: SEC

Reported portfolio value

Quarter-end reported holdings; not current value or investment performance.

View reported values
  • Dec 31, 2024: $178,631,499
  • Mar 31, 2025: $156,192,203
  • Jun 30, 2025: $174,645,044
  • Sep 30, 2025: $194,890,676
  • Dec 31, 2025: $177,415,580,964
  • Mar 31, 2026: $149,077,957,641
  • Jun 30, 2026: $170,565,031,585
  • Sep 30, 2026: $183,823,872,854

Top holdings

Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.

View top holdings values
  1. STATE STR SPDR S&P 500 ETF T · PUT · 78462F953 · shares · PUT: $29,249,377,179
  2. STATE STR SPDR S&P 500 ETF T · CALL · 78462F903 · shares · CALL: $17,442,492,045
  3. INVESCO QQQ TR · PUT · 46090E953 · shares · PUT: $12,078,446,721
  4. INVESCO QQQ TR · CALL · 46090E903 · shares · CALL: $8,865,107,772
  5. ISHARES TR · PUT · 464287957 · shares · PUT: $7,705,507,038
  6. ISHARES TR · CALL · 464287907 · shares · CALL: $4,481,046,859
  7. NVIDIA CORPORATION · PUT · 67066G954 · shares · PUT: $3,643,049,246
  8. NVIDIA CORPORATION · CALL · 67066G904 · shares · CALL: $3,591,709,422
  9. META PLATFORMS INC · CALL · 30303M902 · shares · CALL: $3,350,259,082
  10. MICRON TECHNOLOGY INC · PUT · 595112953 · shares · PUT: $2,763,853,939

Reported holdings

10,469 reported entries
IssuerClassCUSIPTypeShares / principalReported value (USD)
INVESTMENT MANAGERS SER TRCALL46143U902 CALL 27,600 shares $473,616
COCA COLA CONS INCPUT191098952 PUT 2,500 shares $473,175
TRANSALTA CORPCOM89346D107 — 39,145 shares $472,871
PROSHARES TR IIPUT74347W952 PUT 7,400 shares $471,972
AMERICAN BATTERY TECHNOLOGYCALL02451V909 CALL 213,500 shares $471,835
COINSHARES ETF TRCALL91917A902 CALL 10,500 shares $471,765
SPDR SERIES TRUSTCALL78464A908 CALL 20,100 shares $471,747
FERROGLOBE PLCPUTG33856958 PUT 118,500 shares $471,037
VITA COCO CO INCCOM92846Q107 — 8,213 shares $470,235
SIGMA LITHIUM CORPORATIONCALL826599902 CALL 50,000 shares $470,000
SHATTUCK LABS INCPUT82024L953 PUT 68,900 shares $469,898
CAL MAINE FOODS INCCALL128030902 CALL 6,900 shares $469,614
DAUCH CORPCOM024061103 — 89,944 shares $469,507
CANADIAN SOLAR INCCOM136635109 — 40,719 shares $469,082
GOLDMAN SACHS ETF TRCALL38149W900 CALL 8,400 shares $468,972
GRANITESHARES ETF TRPUT38747R954 PUT 81,700 shares $468,958
CORVUS PHARMACEUTICALS INCPUT221015950 PUT 40,700 shares $468,864
AMERICAN SUPERCONDUCTOR CORPPUT030111957 PUT 16,100 shares $468,671
PAR TECHNOLOGY CORPCOM698884103 — 34,016 shares $468,060
ROBINHOOD VENTURES FD IPUT770701950 PUT 16,800 shares $467,712
GENESIS ENERGY L PPUT371927954 PUT 33,900 shares $466,464
OMADA HEALTH INCCALL68170A908 CALL 22,400 shares $466,143
FIDELITY NATL FINL INCCOM31620R303 — 12,048 shares $465,655
INVESTMENT MANAGERS SER TR IPUT46152A959 PUT 13,700 shares $465,526
ADTRAN HOLDINGS INCCALL00486H905 CALL 68,100 shares $465,463
GRAYSCALE ETHEREUM STAKING EPUT389638957 PUT 21,700 shares $465,031
LIGHTPATH TECHNOLOGIES INCPUT532257955 PUT 45,100 shares $464,981
THEMES ETF TRPUT882927954 PUT 124,200 shares $464,508
VIPSHOP HLDGS LTDCOM92763W103 — 37,092 shares $464,020
PROSHARES TRPUT74347G957 PUT 8,000 shares $463,839
BIO-TECHNE CORPPUT09073M954 PUT 6,400 shares $463,808
AMDOCS LTDCALLG02602903 CALL 8,100 shares $463,158
JAZZ PHARMACEUTICALS PLCCALLG50871905 CALL 2,000 shares $463,040
TRANSDIGM GROUP INCCOM893641100 — 427 shares $462,270
PEBBLEBROOK HOTEL TRCALL70509V900 CALL 24,600 shares $461,496
SARATOGA INVT CORPPUT80349A958 PUT 27,700 shares $461,482
INVESTMENT MANAGERS SER TR ICALL46092D906 CALL 12,700 shares $461,010
NOVAGOLD RESOURCES INCPUT66987E956 PUT 70,900 shares $460,850
FORTREA HLDGS INCCALL34965K907 CALL 23,100 shares $460,845
CARPENTER TECHNOLOGY CORPCOM144285103 — 1,185 shares $460,751
HELEN OF TROY LTDPUTG4388N956 PUT 16,800 shares $460,488
GRANITESHARES ETF TRCALL38747R904 CALL 14,400 shares $460,310
EPR PPTYSCALL26884U909 CALL 8,200 shares $460,266
URANIUM RTY CORPPUT91703D950 PUT 113,900 shares $460,156
AVNET INCPUT053807953 PUT 4,600 shares $459,770
GRANITESHARES ETF TRCOM38747R553 — 14,698 shares $459,753
EVOLUS INCCALL30052C907 CALL 57,400 shares $459,200
VIANT TECHNOLOGY INCPUT92557A951 PUT 37,300 shares $459,163
PPG INDS INCPUT693506957 PUT 4,400 shares $459,052
ISHARES S&P GSCI COMMODITY-CALL46428R907 CALL 12,900 shares $458,853
NUVECTIS PHARMA INCCALL67080T908 CALL 21,700 shares $458,304
ABCELLERA BIOLOGICS INCCOM00288U106 — 31,395 shares $458,053
B2GOLD CORPCOM11777Q209 — 87,740 shares $458,002
NB BANCORP INCPUT63945M957 PUT 20,700 shares $457,884
INVESCO EXCH TRADED FD TR IICALL46138G900 CALL 4,600 shares $457,240
UNICYCIVE THERAPEUTICS INCCOM90466Y202 — 97,386 shares $457,227
IAMGOLD CORPPUT450913958 PUT 24,800 shares $456,568
MERCURY SYS INCPUT589378958 PUT 5,500 shares $456,500
WEATHERFORD INTL PLCCALLG48833908 CALL 5,800 shares $456,344
ETF OPPORTUNITIES TRUSTCALL26923W902 CALL 17,700 shares $456,306
JERSEY MIKES SUBS INCCALL47668J902 CALL 27,100 shares $455,822
ROCKET PHARMACEUTICALS INCCALL77313F906 CALL 172,400 shares $453,411
TEXAS ROADHOUSE INCCALL882681909 CALL 2,900 shares $453,386
GROCERY OUTLET HLDG CORPCALL39874R901 CALL 40,300 shares $453,375
ENOVIS CORPORATIONCOM194014502 — 24,806 shares $453,205
ELLINGTON FINANCIAL INCCALL28852N909 CALL 38,300 shares $453,089
CREXENDO INCCALL226552907 CALL 77,000 shares $452,760
VERTEX INCCALL92538J906 CALL 38,400 shares $452,351
STRIDE INCPUT86333M958 PUT 5,800 shares $452,284
LATTICE SEMICONDUCTOR CORPPUT518415954 PUT 3,600 shares $452,232
BIOCRYST PHARMACEUTICALS INCCOM09058V103 — 54,273 shares $452,094
HIGH TIDE INCCALL42981E901 CALL 165,600 shares $452,088
MELCO RESORTS AND ENTMNT LTDCALL585464900 CALL 100,900 shares $452,032
FOGHORN THERAPEUTICS INCPUT344174957 PUT 126,500 shares $451,605
BNB STANDARD CORPPUT86887P959 PUT 76,600 shares $451,174
BLACKLINE INCPUT09239B959 PUT 17,000 shares $451,010
UNIFIRST CORP MASSCALL904708904 CALL 1,800 shares $450,936
CARTERS INCPUT146229959 PUT 14,400 shares $450,864
UPEXI INCCALL39959A905 CALL 395,100 shares $450,414
NEXTDECADE CORPPUT65342K955 PUT 70,900 shares $450,215
NEIGHBORHOOD INTELLIGENCE INCOM690370101 — 152,656 shares $448,808
NISOURCE INCCALL65473P905 CALL 11,500 shares $448,500
ASHLAND INCPUT044186954 PUT 6,600 shares $448,272
SIX FLAGS ENTERTAINMENT CORPCALL83001C908 CALL 41,800 shares $447,678
LA Z BOY INCCALL505336907 CALL 15,100 shares $447,564
ATLAS LITHIUM CORPCALL105861906 CALL 177,600 shares $447,552
VELOCITY FINL INCCOM92262D101 — 29,794 shares $447,505
THEMES ETF TRCOM88340C453 — 43,096 shares $446,905
OMEROS CORPCOM682143102 — 23,469 shares $446,849
THE REALREAL INCCOM88339P101 — 50,518 shares $446,579
3D SYS CORP DELCALL88554D905 CALL 123,800 shares $445,680
ITAU UNIBANCO HLDG S ACALL465562906 CALL 52,200 shares $445,265
ARCH CAP GROUP LTDCOMG0450A105 — 4,815 shares $444,713
AGILON HEALTH INCCOM00857U206 — 5,584 shares $444,430
RAYONIER ADVANCED MATLS INCPUT75508B954 PUT 55,700 shares $443,929
RUM GROUP INCPUT78137L955 PUT 58,700 shares $443,772
CHIMERA INVT CORPCALL16934Q902 CALL 46,500 shares $443,144
ONEMAIN HLDGS INCCALL68268W903 CALL 8,000 shares $443,120
NN INCCALL629337906 CALL 120,500 shares $442,235
TANDEM DIABETES CARE INCCALL875372903 CALL 27,100 shares $442,000