Ken Griffin Options Holdings

Citadel Advisors LLC

  • $618 Billion
  • Q3 2025

Options Holdings Table

Stock Option Type Value Options Held Last Trade Trade History
Mbx Biosciences Inc
PUT
$0
115K
Q3 2025
Added 453.14%
MKC
Mccormick & CO Inc

Consumer Defensive
CALL
$13.8 Million
206K
Q3 2025
Added 39.51%
MKC
Mccormick & CO Inc

Consumer Defensive
PUT
$6.54 Million
97.8K
Q3 2025
Added 39.51%
Mcewen Inc.
CALL
$0
245K
Q3 2025
Added 113.19%
Mcewen Inc.
PUT
$0
410K
Q3 2025
Added 113.19%
MFIN
Medallion Financial Corp

Financial Services
CALL
$493,000
49.2K
Q3 2025
New holding
MFIN
Medallion Financial Corp

Financial Services
PUT
$151,000
15.1K
Q3 2025
New holding
MAX
Media Alpha, Inc.

Communication Services
CALL
$217,000
19.1K
Q3 2025
New holding
MAX
Media Alpha, Inc.

Communication Services
PUT
$176,000
15.5K
Q3 2025
New holding
MPW
Medical Properties Trust Inc

Real Estate
CALL
$7.38 Million
1.45M
Q3 2025
Added 23.97%
MED
Medifast Inc

Consumer Cyclical
CALL
$3.36 Million
246K
Q3 2025
Reduced 64.74%
MED
Medifast Inc

Consumer Cyclical
PUT
$166,000
12.2K
Q3 2025
Reduced 64.74%
MEDP
Medpace Holdings, Inc.

Healthcare
CALL
$5.3 Million
10.3K
Q3 2025
Added 15.23%
MEDP
Medpace Holdings, Inc.

Healthcare
PUT
$11.7 Million
22.7K
Q3 2025
Added 15.23%
MGTX
Meira G Tx Holdings PLC

Healthcare
PUT
$140,000
17.1K
Q3 2025
Added 25.74%
MLCO
Melco Resorts & Entertainment LTD

Consumer Cyclical
CALL
$1.71 Million
186K
Q3 2025
Added 6.63%
MLCO
Melco Resorts & Entertainment LTD

Consumer Cyclical
PUT
$324,000
35.4K
Q3 2025
Added 6.63%
MERC
Mercer International Inc.

Basic Materials
CALL
$147,000
51.2K
Q3 2025
Reduced 43.65%
MERC
Mercer International Inc.

Basic Materials
PUT
$58,000
20.4K
Q3 2025
Reduced 43.65%
MBIN
Merchants Bancorp

Financial Services
PUT
$438,000
13.8K
Q3 2025
Reduced 15.85%
Mercurity Fintech Holding In
CALL
$0
16.8K
Q3 2025
New holding
MCY
Mercury General Corp

Financial Services
CALL
$610,000
7.2K
Q3 2025
Reduced 63.39%
MCY
Mercury General Corp

Financial Services
PUT
$347,000
4.1K
Q3 2025
Reduced 63.39%
MRCY
Mercury Systems Inc

Industrials
CALL
$2.08 Million
26.9K
Q3 2025
Reduced 18.31%
MRCY
Mercury Systems Inc

Industrials
PUT
$2.17 Million
28.1K
Q3 2025
Reduced 18.31%
MREO
Mereo Biopharma Group PLC

Healthcare
CALL
$51,000
25.7K
Q3 2025
Reduced 44.59%
MREO
Mereo Biopharma Group PLC

Healthcare
PUT
$110,000
55.3K
Q3 2025
Reduced 44.59%
MMSI
Merit Medical Systems Inc

Healthcare
CALL
$923,000
11.1K
Q3 2025
Added 6.73%
MTH
Meritage Homes Corp

Consumer Cyclical
CALL
$738,000
10.2K
Q3 2025
Added 12.25%
MTH
Meritage Homes Corp

Consumer Cyclical
PUT
$3.32 Million
45.8K
Q3 2025
Added 12.25%
MRUS
Merus N.V.

Healthcare
CALL
$7.16 Million
76K
Q3 2025
Reduced 13.03%
MRUS
Merus N.V.

Healthcare
PUT
$2.89 Million
30.7K
Q3 2025
Reduced 13.03%
Mesoblast LTD
CALL
$0
230K
Q3 2025
Added 4.26%
Mesoblast LTD
PUT
$0
66.1K
Q3 2025
Added 4.26%
MTA
Metalla Royalty & Streaming Ltd.

Basic Materials
CALL
$75,000
11.9K
Q3 2025
Reduced 60.63%
MTA
Metalla Royalty & Streaming Ltd.

Basic Materials
PUT
$126,000
20K
Q3 2025
Reduced 60.63%
TMST
Timken Steel Corp

Basic Materials
CALL
$699,000
32.5K
Q3 2025
New holding
MEOH
Methanex Corp

Basic Materials
CALL
$4.5 Million
113K
Q3 2025
Added 20.66%
MEOH
Methanex Corp

Basic Materials
PUT
$1.02 Million
25.7K
Q3 2025
Added 20.66%
MEI
Methode Electronics Inc

Technology
CALL
$696,000
92.3K
Q3 2025
Reduced 53.39%
MEI
Methode Electronics Inc

Technology
PUT
$88,000
11.7K
Q3 2025
Reduced 53.39%
MCB
Metropolitan Bank Holding Corp.

Financial Services
CALL
$748,000
10K
Q3 2025
Reduced 16.22%
MCB
Metropolitan Bank Holding Corp.

Financial Services
PUT
$231,000
3.1K
Q3 2025
Reduced 16.22%
Metsera Inc
CALL
$0
51.3K
Q3 2025
Added 27.51%
Metsera Inc
PUT
$0
24.1K
Q3 2025
Added 27.51%
MTD
Mettler Toledo International Inc

Healthcare
PUT
$10.8 Million
8.8K
Q3 2025
Reduced 24.14%
MFA
Mfa Financial, Inc.

Real Estate
CALL
$649,000
70.7K
Q3 2025
Added 48.04%
MFA
Mfa Financial, Inc.

Real Estate
PUT
$764,000
83.2K
Q3 2025
Added 48.04%
MTG
Mgic Investment Corp

Financial Services
CALL
$348,000
12.3K
Q3 2025
New holding
Ken Griffin

Ken Griffin

Ken Griffin is the founder and CEO of Citadel Advisors, a successful investment firm that uses technology and data-driven approaches to investing. Griffin is known for his expertise in quantitative investing and his innovative approach to investing. He has generated strong returns for his clients over the long term.
Track Ken Griffin's portfolio

Summary

  • Portfolio
  • No. of Stocks 15,551
  • Current Value $618 Billion
  • Prior Value $550 Billion
  • Filing
  • Period Q3 2025
  • Filing Date November 14, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 1,467 stocks
  • Additional Purchases 2,179 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 2,220 stocks
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