Simplex Trading, LLC Options Holdings

Simplex Trading, LLC

  • $175 Billion
  • Q2 2025

Options Holdings Table

Stock Option Type Value Options Held Last Trade Trade History
Mereo Biopharma Group PLC
CALL
$539,000
199K
Q2 2025
Added 250.09%
Mereo Biopharma Group PLC
PUT
$67,000
25K
Q2 2025
Added 7.76%
Millrose Pptys Inc
CALL
$607,000
21.3K
Q2 2025
Added 55.47%
Millrose Pptys Inc
PUT
$1.81 Million
63.5K
Q2 2025
Reduced 62.2%
Mersana Therapeutics Inc
CALL
$1,000
16.4K
Q2 2025
Added 144.78%
Mersana Therapeutics Inc
PUT
$0
500
Q1 2025
Reduced 99.6%
Marten Trans LTD
CALL
$315,000
24.3K
Q2 2025
Reduced 48.52%
Marten Trans LTD
PUT
$264,000
20.4K
Q2 2025
Added 59.38%
Merus N V
CALL
$646,000
12.3K
Q2 2025
Added 16.04%
Merus N V
PUT
$1.35 Million
25.7K
Q2 2025
Added 4183.33%
Maravai Lifesciences Hldgs I
PUT
$40,000
16.7K
Q2 2025
Reduced 6.18%
Marex Group PLC
CALL
$343,000
8.7K
Q2 2025
Added 58.18%
Marex Group PLC
PUT
$74,000
1.9K
Q2 2025
Added 11.76%
Mesabi Tr
CALL
$21,000
900
Q2 2025
Reduced 62.5%
Mesabi Tr
PUT
$4,000
200
Q2 2025
Reduced 93.75%
Midland States Bancorp Inc
CALL
$8,000
500
Q2 2025
New holding
Msci Inc
CALL
$1.27 Million
2.2K
Q2 2025
Reduced 93.19%
Msci Inc
PUT
$922,000
1.6K
Q2 2025
Reduced 11.11%
Morgan Stanley Direct Lendin
CALL
$258,000
13.8K
Q2 2025
New holding
Morgan Stanley Direct Lendin
PUT
$733,000
39.2K
Q1 2025
Added 51.35%
Middlesex Wtr CO
CALL
$124,000
2.3K
Q2 2025
Added 283.33%
Middlesex Wtr CO
PUT
$43,000
800
Q2 2025
New holding
Madison Square Garden Entmt
CALL
$111,000
2.8K
Q2 2025
Added 33.33%
Madison Square Grdn Sprt Cor
CALL
$62,000
300
Q2 2025
New holding
Madison Square Grdn Sprt Cor
PUT
$188,000
900
Q2 2025
New holding
Motorola Solutions Inc
CALL
$4.92 Million
11.7K
Q2 2025
Reduced 39.38%
Motorola Solutions Inc
PUT
$1.56 Million
3.7K
Q2 2025
Added 164.29%
Msc Indl Direct Inc
CALL
$816,000
9.6K
Q2 2025
Reduced 38.85%
Msc Indl Direct Inc
PUT
$289,000
3.4K
Q2 2025
Reduced 96.63%
Arcelormittal Sa Luxembourg
CALL
$7.64 Million
242K
Q2 2025
Reduced 41.11%
Arcelormittal Sa Luxembourg
PUT
$4.05 Million
128K
Q2 2025
Added 46.23%
Metalla Rty & Streaming LTD
CALL
$4,000
1.3K
Q2 2025
Reduced 78.33%
Metalla Rty & Streaming LTD
PUT
$19,000
5K
Q2 2025
Reduced 9.09%
M & T Bk Corp
CALL
$3.18 Million
16.4K
Q2 2025
Reduced 36.68%
M & T Bk Corp
PUT
$1.11 Million
5.7K
Q2 2025
Reduced 1.72%
Match Group Inc New
CALL
$8.7 Million
282K
Q2 2025
Added 4.65%
Match Group Inc New
PUT
$3.6 Million
117K
Q2 2025
Reduced 44.58%
Mettler Toledo International
CALL
$587,000
500
Q2 2025
Reduced 58.33%
Mettler Toledo International
PUT
$469,000
400
Q2 2025
Reduced 66.67%
Matador Res CO
CALL
$5.52 Million
116K
Q2 2025
Added 2.75%
Mgic Invt Corp Wis
PUT
$5,000
200
Q2 2025
Added 100.0%
Meritage Homes Corp
CALL
$66,000
1K
Q2 2025
Reduced 9.09%
Meritage Homes Corp
PUT
$508,000
7.6K
Q2 2025
Added 40.74%
Materialise Nv
CALL
$192,000
34K
Q2 2025
Reduced 3.13%
Materialise Nv
PUT
$3,000
600
Q2 2025
Reduced 97.63%
Vail Resorts Inc
CALL
$4.12 Million
26.2K
Q2 2025
Reduced 30.32%
Vail Resorts Inc
PUT
$2.03 Million
12.9K
Q2 2025
Reduced 28.73%
Matrix Svc CO
CALL
$62,000
4.6K
Q2 2025
Reduced 33.33%
Macom Tech Solutions Hldgs I
CALL
$2.06 Million
14.4K
Q2 2025
Reduced 27.64%

Summary

  • Portfolio
  • No. of Stocks 9,904
  • Current Value $175 Billion
  • Prior Value $156 Billion
  • Filing
  • Period Q2 2025
  • Filing Date August 05, 2025
  • Form Type 13F-HR
  • Activity in Q2 2025
  • New Purchases 905 stocks
  • Additional Purchases 800 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 715 stocks
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