← 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
- 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) |
|---|---|---|---|---|---|
| THEMES ETF TR | PUT | 882927954 | PUT | 600 shares | $23,165 |
| CADIZ INC | CALL | 127537907 | CALL | 5,900 shares | $23,128 |
| CONMED CORP | PUT | 207410951 | PUT | 500 shares | $23,115 |
| THEMES ETF TR | PUT | 882927954 | PUT | 1,100 shares | $23,111 |
| ABRDN ETFS | PUT | 003261953 | PUT | 600 shares | $23,082 |
| CABOT CORP | CALL | 127055901 | CALL | 300 shares | $23,073 |
| NEOGEN CORP | PUT | 640491956 | PUT | 1,800 shares | $23,040 |
| HORIZON TECHNOLOGY FIN CORP | PUT | 44045A952 | PUT | 5,000 shares | $22,950 |
| ACV AUCTIONS INC | PUT | 00091G954 | PUT | 2,200 shares | $22,946 |
| SEAPORT ENTMT GROUP INC | PUT | 812215950 | PUT | 1,000 shares | $22,890 |
| BARCLAYS BANK PLC | COM | 06748M188 | — | 502 shares | $22,886 |
| MDA SPACE LTD | COM | 55293N109 | — | 772 shares | $22,874 |
| BITWISE ETHEREUM ETF | PUT | 091955954 | PUT | 1,200 shares | $22,872 |
| BYRNA TECHNOLOGIES INC | CALL | 12448X901 | CALL | 7,000 shares | $22,855 |
| AGCO CORP | PUT | 001084952 | PUT | 200 shares | $22,846 |
| ACCURAY INC DEL | COM | 004397105 | — | 84,592 shares | $22,839 |
| HUDSON TECHNOLOGIES INC | COM | 444144109 | — | 4,434 shares | $22,835 |
| PERELLA WEINBERG PARTNERS | CALL | 71367G902 | CALL | 1,400 shares | $22,833 |
| SPIRE INC | CALL | 84857L901 | CALL | 300 shares | $22,827 |
| DIREXION SHARES ETF TRUST | COM | 25461H242 | — | 2,111 shares | $22,819 |
| ESCO TECHNOLOGIES INC | COM | 296315104 | — | 86 shares | $22,799 |
| ETF OPPORTUNITIES TRUST | COM | 26923N579 | — | 870 shares | $22,785 |
| GENPACT LIMITED | CALL | G3922B907 | CALL | 700 shares | $22,771 |
| ARK ETF TR | PUT | 00214Q957 | PUT | 500 shares | $22,765 |
| EXAGEN INC | CALL | 30068X903 | CALL | 2,800 shares | $22,764 |
| LARIMAR THERAPEUTICS INC | COM | 517125100 | — | 7,118 shares | $22,742 |
| VANGUARD WELLINGTON FD | CALL | 921935900 | CALL | 100 shares | $22,707 |
| STARFIGHTERS SPACE INC | PUT | 85529M954 | PUT | 12,400 shares | $22,692 |
| EA SERIES TRUST | PUT | 02072Q950 | PUT | 600 shares | $22,662 |
| ALLISON TRANSMISSION HLDGS I | PUT | 01973R951 | PUT | 200 shares | $22,652 |
| LIGHTBRIDGE CORP | CALL | 53224K902 | CALL | 3,600 shares | $22,644 |
| VERU INC | PUT | 92536C952 | PUT | 8,500 shares | $22,610 |
| WHITEHORSE FIN INC | COM | 96524V106 | — | 3,228 shares | $22,563 |
| ALPINE INCOME PPTY TR INC | PUT | 02083X953 | PUT | 1,300 shares | $22,555 |
| MACH NATURAL RESOURCES LP | PUT | 55445L950 | PUT | 2,200 shares | $22,528 |
| CARLYLE SECURED LENDING INC | COM | 872280102 | — | 2,107 shares | $22,523 |
| GROCERY OUTLET HLDG CORP | PUT | 39874R951 | PUT | 2,000 shares | $22,500 |
| DREAM FINDERS HOMES INC | PUT | 26154D950 | PUT | 2,100 shares | $22,470 |
| SPROTT INC | COM | 852066208 | — | 188 shares | $22,443 |
| TIDAL TRUST II | COM | 88636Y102 | — | 2,391 shares | $22,403 |
| REGENCELL BIOSCIENCE HLDGS L | CALL | G7487R900 | CALL | 3,600 shares | $22,392 |
| GLADSTONE INVT CORP | COM | 376546107 | — | 1,435 shares | $22,386 |
| ODYSSEY MARINE EXPL INC | CALL | 676118901 | CALL | 33,100 shares | $22,355 |
| GORMAN RUPP CO | CALL | 383082904 | CALL | 300 shares | $22,344 |
| BCB BANCORP INC | CALL | 055298903 | CALL | 2,600 shares | $22,334 |
| FULL HSE RESORTS INC | PUT | 359678959 | PUT | 15,700 shares | $22,294 |
| IRSA INVERSIONES Y REP S A | CALL | 450047903 | CALL | 1,600 shares | $22,272 |
| PROSHARES TR | CALL | 74350P905 | CALL | 1,300 shares | $22,269 |
| PROSHARES TR | COM | 74350P584 | — | 2,129 shares | $22,258 |
| YELP INC | PUT | 985817955 | PUT | 1,200 shares | $22,200 |
| VICTORY CAP HLDGS INC DEL | CALL | 92645B903 | CALL | 200 shares | $22,120 |
| NEXTDOOR HOLDINGS INC | CALL | 65345M908 | CALL | 9,100 shares | $22,113 |
| INVESCO EXCH TRADED FD TR II | PUT | 46138E955 | PUT | 2,000 shares | $22,100 |
| PENNYMAC FINL SVCS INC NEW | COM | 70932M107 | — | 358 shares | $22,095 |
| DIREXION SHARES ETF TRUST | CALL | 25460G906 | CALL | 200 shares | $22,039 |
| DIREXION SHARES ETF TRUST | PUT | 25460G956 | PUT | 200 shares | $22,039 |
| VONTIER CORPORATION | CALL | 928881901 | CALL | 700 shares | $21,980 |
| BRIGHTSTAR LOTTERY PLC | PUT | G4863A958 | PUT | 2,200 shares | $21,978 |
| SUNRUN INC | COM | 86771W105 | — | 2,827 shares | $21,965 |
| PARABILIS MEDICINES INC | COM | 698955101 | — | 680 shares | $21,957 |
| ARBE ROBOTICS LTD | PUT | M1R95N950 | PUT | 35,400 shares | $21,948 |
| STAR HLDGS | COM | 85512G106 | — | 2,561 shares | $21,947 |
| FRONTDOOR INC | PUT | 35905A959 | PUT | 300 shares | $21,936 |
| SPROTT FDS TR | CALL | 85208P901 | CALL | 500 shares | $21,900 |
| ISHARES INC | PUT | 464286951 | PUT | 200 shares | $21,900 |
| VANECK ETF TRUST | CALL | 92189F902 | CALL | 200 shares | $21,894 |
| SAFE PRO GROUP INC | CALL | 78642D901 | CALL | 4,800 shares | $21,888 |
| INTL GNRL INSURANCE HLDNGS L | PUT | G4809J956 | PUT | 900 shares | $21,870 |
| INVESCO EXCHANGE TRADED FD T | PUT | 46137V956 | PUT | 200 shares | $21,778 |
| INSEEGO CORP | COM | 45782B302 | — | 5,944 shares | $21,755 |
| UNDER ARMOUR INC | PUT | 904311956 | PUT | 5,000 shares | $21,750 |
| GENTEX CORP | PUT | 371901959 | PUT | 1,000 shares | $21,739 |
| PROSHARES TR | CALL | 74347G907 | CALL | 300 shares | $21,739 |
| AKEBIA THREAPEUTICS INC | COM | 00972D105 | — | 23,585 shares | $21,698 |
| KRANESHARES TRUST | COM | 500767751 | — | 607 shares | $21,688 |
| ISHARES TR | COM | 46435U713 | — | 394 shares | $21,681 |
| FLUX PWR HLDGS INC | COM | 344057302 | — | 48,069 shares | $21,679 |
| PROSHARES TR | CALL | 74347R902 | CALL | 1,400 shares | $21,672 |
| ARTISAN PARTNERS ASSET MGMT | PUT | 04316A958 | PUT | 600 shares | $21,671 |
| WISDOMTREE TR | CALL | 97717W907 | CALL | 800 shares | $21,576 |
| ALIGHT INC | COM | 01626W200 | — | 2,417 shares | $21,559 |
| STRATEGY SHS | CALL | 86280R908 | CALL | 1,000 shares | $21,550 |
| VANECK ETF TRUST | COM | 92189F130 | — | 541 shares | $21,548 |
| CENTURI HOLDINGS INC | COM | 155923105 | — | 1,074 shares | $21,522 |
| GAOTU TECHEDU INC | PUT | 36257Y959 | PUT | 8,900 shares | $21,449 |
| EVE HLDG INC | CALL | 29970N904 | CALL | 11,100 shares | $21,423 |
| LIQUIDITY SVCS INC | CALL | 53635B907 | CALL | 500 shares | $21,414 |
| CHILDRENS PL INC NEW | CALL | 168905907 | CALL | 10,000 shares | $21,400 |
| SPDR SERIES TRUST | PUT | 78464A958 | PUT | 200 shares | $21,394 |
| INVESCO EXCH TRADED FD TR II | COM | 46138E784 | — | 1,076 shares | $21,390 |
| INVESTMENT MANAGERS SER TR | COM | 46143U534 | — | 1,852 shares | $21,362 |
| AMERICAN COASTAL INS CORP | COM | 910710102 | — | 2,363 shares | $21,361 |
| ISHARES TR | CALL | 464287907 | CALL | 200 shares | $21,342 |
| BLUELINX HLDGS INC | PUT | 09624H958 | PUT | 300 shares | $21,339 |
| TC ENERGY CORP | COM | 87807B107 | — | 369 shares | $21,320 |
| JASPER THERAPEUTICS INC | COM | 471871202 | — | 36,721 shares | $21,298 |
| AMERICAN HOMES 4 RENT | CALL | 02665T906 | CALL | 700 shares | $21,273 |
| ARRIVENT BIOPHARMA INC | PUT | 04272N952 | PUT | 700 shares | $21,196 |
| MIDDLESEX WTR CO | CALL | 596680908 | CALL | 400 shares | $21,188 |
| BRC GROUP HOLDINGS INC | COM | 05580M108 | — | 4,333 shares | $21,166 |