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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
- STATE STR SPDR S&P 500 ETF T · PUT · 78462F953 · shares · PUT: $29,249,377,179
- STATE STR SPDR S&P 500 ETF T · CALL · 78462F903 · shares · CALL: $17,442,492,045
- INVESCO QQQ TR · PUT · 46090E953 · shares · PUT: $12,078,446,721
- INVESCO QQQ TR · CALL · 46090E903 · shares · CALL: $8,865,107,772
- ISHARES TR · PUT · 464287957 · shares · PUT: $7,705,507,038
- ISHARES TR · CALL · 464287907 · shares · CALL: $4,481,046,859
- NVIDIA CORPORATION · PUT · 67066G954 · shares · PUT: $3,643,049,246
- NVIDIA CORPORATION · CALL · 67066G904 · shares · CALL: $3,591,709,422
- META PLATFORMS INC · CALL · 30303M902 · shares · CALL: $3,350,259,082
- MICRON TECHNOLOGY INC · PUT · 595112953 · shares · PUT: $2,763,853,939
Reported holdings
10,469 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| ALX ONCOLOGY HLDGS INC | PUT | 00166B955 | PUT | 500 shares | $695 |
| HEALTH CATALYST INC | CALL | 42225T907 | CALL | 400 shares | $692 |
| FOLD HLDGS INC | PUT | 29103K950 | PUT | 1,300 shares | $691 |
| INVESTMENT MANAGERS SER TR I | PUT | 46152A959 | PUT | 100 shares | $687 |
| VANGUARD WELLINGTON FD | COM | 921935508 | — | 3 shares | $681 |
| ALLISON TRANSMISSION HLDGS I | COM | 01973R101 | — | 6 shares | $679 |
| ARMATA PHARMACEUTICALS INC | COM | 04216R102 | — | 183 shares | $671 |
| SERES THERAPEUTICS INC | PUT | 81750R951 | PUT | 200 shares | $670 |
| CASTOR MARITIME INC | COM | Y1146L208 | — | 328 shares | $665 |
| QUAD / GRAPHICS INC | COM | 747301109 | — | 72 shares | $664 |
| HERITAGE FINL CORP WASH | COM | 42722X106 | — | 24 shares | $663 |
| PENNANTPARK INVTS CORP | PUT | 708062954 | PUT | 200 shares | $660 |
| THEMES ETF TR | CALL | 88340C903 | CALL | 100 shares | $659 |
| TON STRATEGY CO | COM | 92337U302 | — | 172 shares | $650 |
| HIPPO HLDGS INC | COM | 433539202 | — | 21 shares | $646 |
| RECON TECHNOLOGY LTD | PUT | G7415M950 | PUT | 500 shares | $645 |
| FTC SOLAR INC | PUT | 30320C951 | PUT | 300 shares | $644 |
| THEMES ETF TR | CALL | 88340C903 | CALL | 300 shares | $643 |
| AMERISAFE INC | COM | 03071H100 | — | 27 shares | $638 |
| RYERSON HLDG CORP | COM | 783754104 | — | 27 shares | $636 |
| TIDAL TRUST II | COM | 88634T857 | — | 54 shares | $635 |
| KANDI TECHNOLOGIES GROUP INC | PUT | G5214E953 | PUT | 800 shares | $632 |
| RANI THERAPEUTICS HLDGS INC | PUT | 753018950 | PUT | 800 shares | $632 |
| CIA ENERGETICA DE MINAS GERA | PUT | 204409951 | PUT | 300 shares | $630 |
| GLOBAL X FDS | COM | 37954Y624 | — | 19 shares | $629 |
| TIDAL TRUST II | COM | 88636Y490 | — | 31 shares | $629 |
| USA TODAY CO INC | PUT | 36472T959 | PUT | 100 shares | $629 |
| CORGI ETF TR I | COM | 218946838 | — | 28 shares | $626 |
| CONDUENT INC | CALL | 206787903 | CALL | 400 shares | $624 |
| PENNANT GROUP INC | COM | 70805E109 | — | 16 shares | $624 |
| THEMES ETF TR | CALL | 88340C903 | CALL | 200 shares | $622 |
| ORCHESTRA BIOMED HLDGS INC | CALL | 68572M906 | CALL | 100 shares | $622 |
| ALDEYRA THERAPEUTICS INC | PUT | 01438T956 | PUT | 500 shares | $615 |
| CI&T INC | CALL | G21307906 | CALL | 200 shares | $614 |
| ALTA EQUIPMENT GROUP INC | PUT | 02128L956 | PUT | 100 shares | $608 |
| ADVISOR MANAGED PORTFOLIOS | CALL | 00777X906 | CALL | 200 shares | $608 |
| FINGERMOTION INC | COM | 31788K108 | — | 3,434 shares | $607 |
| FINVOLUTION GROUP | CALL | 31810T901 | CALL | 200 shares | $606 |
| CORGI ETF TR I | CALL | 218946907 | CALL | 400 shares | $606 |
| LANTERN PHARMA INC | PUT | 51654W951 | PUT | 600 shares | $606 |
| TOOTSIE ROLL INDS INC | COM | 890516107 | — | 16 shares | $601 |
| DESIGN THERAPEUTICS INC | COM | 25056L103 | — | 47 shares | $590 |
| WESTPORT FUEL SYSTEMS INC | CALL | 960908907 | CALL | 300 shares | $588 |
| PROFOUND MED CORP | CALL | 74319B902 | CALL | 100 shares | $580 |
| READY CAPITAL CORP | PUT | 75574U951 | PUT | 500 shares | $580 |
| HEALTHPEAK PROPERTIES INC | COM | 42250P103 | — | 29 shares | $579 |
| EMBECTA CORP | PUT | 29082K955 | PUT | 100 shares | $566 |
| INVESTMENT MANAGERS SER TR I | COM | 46152N652 | — | 41 shares | $563 |
| PAYSAFE LIMITED | CALL | G6964L906 | CALL | 100 shares | $563 |
| CONSOLIDATED WATER CO INC | COM | G23773107 | — | 20 shares | $560 |
| NIU TECHNOLOGIES | PUT | 65481N950 | PUT | 300 shares | $558 |
| TORO CORP | COM | Y8900D108 | — | 100 shares | $551 |
| RIDENOW GROUP INC | CALL | 781386905 | CALL | 100 shares | $550 |
| NIU TECHNOLOGIES | COM | 65481N100 | — | 293 shares | $544 |
| XENIA HOTELS & RESORTS INC | COM | 984017103 | — | 30 shares | $541 |
| ACCURAY INC DEL | PUT | 004397955 | PUT | 2,000 shares | $540 |
| INVESCO INDIA EXCHANGE-TRADE | COM | 46137R109 | — | 29 shares | $540 |
| USIO INC | CALL | 917313908 | CALL | 200 shares | $538 |
| IGC PHARMA INC | PUT | 45408X958 | PUT | 2,000 shares | $537 |
| NERDWALLET INC | COM | 64082B102 | — | 61 shares | $535 |
| SYPRIS SOLUTIONS INC | CALL | 871655906 | CALL | 300 shares | $531 |
| APOGEE ENTERPRISES INC | COM | 037598109 | — | 15 shares | $530 |
| SPDR SERIES TRUST | COM | 78464A367 | — | 26 shares | $529 |
| INOGEN INC | CALL | 45780L904 | CALL | 100 shares | $527 |
| FIRST TR EXCH TRD ALPHDX FD | COM | 33737J802 | — | 10 shares | $509 |
| ALGONQUIN POWER & UTILITIES | CALL | 015857905 | CALL | 100 shares | $503 |
| VOLITIONRX LTD | PUT | 928661956 | PUT | 1,900 shares | $490 |
| GEOSPACE TECHNOLOGIES CORP | CALL | 37364X909 | CALL | 100 shares | $488 |
| SILGAN HLDGS INC | COM | 827048109 | — | 14 shares | $486 |
| INSPIRED ENTMT INC | COM | 45782N108 | — | 141 shares | $485 |
| GLOBAL WTR RES INC | COM | 379463102 | — | 61 shares | $484 |
| OXFORD SQUARE CAP CORP | COM | 69181V107 | — | 378 shares | $483 |
| YIREN DIGITAL LTD | PUT | 98585L950 | PUT | 500 shares | $475 |
| TOWNSQUARE MEDIA INC | CALL | 892231901 | CALL | 100 shares | $471 |
| BIOLINE RX LIMITED | CALL | 09071M904 | CALL | 200 shares | $470 |
| DHI GROUP INC | CALL | 23331S900 | CALL | 100 shares | $470 |
| OCEAN PWR TECHNOLOGIES INC | COM | 674870605 | — | 350 shares | $469 |
| IMMUTEP LTD | CALL | 45257L907 | CALL | 100 shares | $465 |
| VERA BRADLEY INC | PUT | 92335C956 | PUT | 100 shares | $462 |
| KANDI TECHNOLOGIES GROUP INC | COM | G5214E103 | — | 584 shares | $461 |
| SOLARIS RES INC | COM | 83419D201 | — | 66 shares | $459 |
| VOC ENERGY TR | COM | 91829B103 | — | 134 shares | $456 |
| NU SKIN ENTERPRISES INC | PUT | 67018T955 | PUT | 100 shares | $453 |
| ETF SER SOLUTIONS | COM | 26922B865 | — | 22 shares | $444 |
| INOGEN INC | COM | 45780L104 | — | 84 shares | $442 |
| INVESTMENT MANAGERS SER TR I | PUT | 46152N954 | PUT | 1,600 shares | $440 |
| CAPITAL CLEAN ENERGY CARRIER | COM | Y00408107 | — | 23 shares | $431 |
| NAUTILUS BIOTECHNOLOGY INC | PUT | 63909J958 | PUT | 300 shares | $426 |
| THEMES ETF TR | PUT | 88340C953 | PUT | 1,100 shares | $425 |
| CITIUS PHARMACEUTICALS INC | PUT | 17322U956 | PUT | 800 shares | $424 |
| ETF OPPORTUNITIES TRUST | COM | 26923Q721 | — | 46 shares | $417 |
| TEADS HLDG CO | PUT | 69002R953 | PUT | 800 shares | $408 |
| CASTOR MARITIME INC | PUT | Y1146L958 | PUT | 200 shares | $405 |
| EVERTEC INC | COM | 30040P103 | — | 15 shares | $404 |
| PROG HOLDINGS INC | COM | 74319R101 | — | 13 shares | $401 |
| DOCGO INC | CALL | 256086909 | CALL | 1,000 shares | $400 |
| BLACKROCK TCP CAPITAL CORP | PUT | 09259E958 | PUT | 100 shares | $400 |
| PROSHARES TR | COM | 74347G465 | — | 5 shares | $397 |
| TRIVAGO N V | COM | 89686D303 | — | 75 shares | $396 |
| NOMAD PWR SOLUTIONS INC | CALL | 539319901 | CALL | 100 shares | $392 |