Simplex Trading, LLC Options Holdings

Simplex Trading, LLC

  • $195 Billion
  • Q3 2025

Options Holdings Table

Stock Option Type Value Options Held Last Trade Trade History
Medical Pptys Trust Inc
CALL
$7.21 Million
1.42M
Q3 2025
Reduced 26.28%
Monolithic Pwr Sys Inc
CALL
$3.13 Million
3.4K
Q3 2025
Reduced 33.33%
Monolithic Pwr Sys Inc
PUT
$8.19 Million
8.9K
Q3 2025
Added 58.93%
Marqeta Inc
CALL
$630,000
120K
Q3 2025
Added 15.57%
Marqeta Inc
PUT
$94,000
17.9K
Q3 2025
Reduced 2.19%
Everspin Technologies Inc
CALL
$40,000
4.3K
Q3 2025
Added 760.0%
Mrc Global Inc
PUT
$1,000
100
Q3 2025
Reduced 80.0%
Monroe Cap Corp
CALL
$3,000
500
Q3 2025
Reduced 16.67%
Monroe Cap Corp
PUT
$2,000
400
Q3 2025
Reduced 89.74%
Mercury Sys Inc
CALL
$15,000
200
Q3 2025
New holding
Mereo Biopharma Group PLC
CALL
$97,000
47.2K
Q3 2025
Reduced 76.31%
Mereo Biopharma Group PLC
PUT
$19,000
9.4K
Q3 2025
Reduced 62.4%
Millrose Pptys Inc
CALL
$648,000
19.3K
Q3 2025
Reduced 9.39%
Millrose Pptys Inc
PUT
$6.97 Million
208K
Q3 2025
Added 226.77%
Marten Trans LTD
PUT
$6,000
600
Q3 2025
Reduced 97.06%
Merus N V
CALL
$5.5 Million
58.4K
Q3 2025
Added 374.8%
Merus N V
PUT
$2.39 Million
25.4K
Q3 2025
Reduced 1.17%
Maravai Lifesciences Hldgs I
CALL
$587,000
205K
Q3 2025
Reduced 15.1%
Maravai Lifesciences Hldgs I
PUT
$24,000
8.7K
Q3 2025
Reduced 47.9%
Marex Group PLC
CALL
$843,000
25.1K
Q3 2025
Added 188.51%
Marex Group PLC
PUT
$635,000
18.9K
Q3 2025
Added 894.74%
Mesabi Tr
CALL
$5,000
200
Q3 2025
Reduced 77.78%
Midland States Bancorp Inc
CALL
$8,000
500
Q2 2025
New holding
Msci Inc
CALL
$1.59 Million
2.8K
Q3 2025
Added 27.27%
Msci Inc
PUT
$4.77 Million
8.4K
Q3 2025
Added 425.0%
Morgan Stanley Direct Lendin
CALL
$220,000
13.7K
Q3 2025
Reduced 0.72%
Morgan Stanley Direct Lendin
PUT
$270,000
16.8K
Q3 2025
Reduced 57.14%
Middlesex Wtr CO
CALL
$54,000
1K
Q3 2025
Reduced 56.52%
Middlesex Wtr CO
PUT
$43,000
800
Q2 2025
New holding
Madison Square Garden Entmt
CALL
$67,000
1.5K
Q3 2025
Reduced 46.43%
Madison Square Garden Entmt
PUT
$22,000
500
Q3 2025
New holding
Madison Square Grdn Sprt Cor
CALL
$181,000
800
Q3 2025
Added 166.67%
Madison Square Grdn Sprt Cor
PUT
$5.36 Million
23.6K
Q3 2025
Added 2522.22%
Motorola Solutions Inc
CALL
$3.84 Million
8.4K
Q3 2025
Reduced 28.21%
Motorola Solutions Inc
PUT
$1.6 Million
3.5K
Q3 2025
Reduced 5.41%
Msc Indl Direct Inc
CALL
$746,000
8.1K
Q3 2025
Reduced 15.63%
Msc Indl Direct Inc
PUT
$27,000
300
Q3 2025
Reduced 91.18%
Arcelormittal Sa Luxembourg
PUT
$3.66 Million
101K
Q3 2025
Reduced 20.92%
Metalla Rty & Streaming LTD
CALL
$3,000
500
Q3 2025
Reduced 61.54%
M & T Bk Corp
CALL
$1.92 Million
9.7K
Q3 2025
Reduced 40.85%
M & T Bk Corp
PUT
$1.66 Million
8.4K
Q3 2025
Added 47.37%
Match Group Inc New
CALL
$8.19 Million
232K
Q3 2025
Reduced 17.65%
Match Group Inc New
PUT
$4.55 Million
129K
Q3 2025
Added 10.38%
Mettler Toledo International
CALL
$1.35 Million
1.1K
Q3 2025
Added 120.0%
Mettler Toledo International
PUT
$491,000
400
Q2 2025
Reduced 66.67%
Matador Res CO
CALL
$3.02 Million
67.2K
Q3 2025
Reduced 41.92%
Matador Res CO
PUT
$9.35 Million
208K
Q3 2025
Reduced 11.68%
Mgic Invt Corp Wis
PUT
$2,000
100
Q3 2025
Reduced 50.0%
Meritage Homes Corp
CALL
$94,000
1.3K
Q3 2025
Added 30.0%

Summary

  • Portfolio
  • No. of Stocks 10,359
  • Current Value $195 Billion
  • Prior Value $175 Billion
  • Filing
  • Period Q3 2025
  • Filing Date November 12, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 1,003 stocks
  • Additional Purchases 889 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 715 stocks
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