Ken Griffin Citadel Advisors
Ken Griffin founded Citadel, one of the world’s largest and most successful hedge funds. Starting his trading career from his Harvard dorm room at a young age, Griffin quickly developed a keen sense for markets and built Citadel into a global powerhouse with billions in assets under management. Known for his quantitative and technology-driven strategies, Griffin has also made headlines for significant philanthropic contributions, supporting causes in education, the arts, and public institutions. Over the years, he has earned recognition as one of the preeminent figures in modern finance.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$2.49B |
| 2 |
NVIDIA
NVDA
|
+$2.19B |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.94B |
| 4 |
TSMC
TSM
|
+$728M |
| 5 |
UnitedHealth
UNH
|
+$705M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$775M |
| 2 |
AbbVie
ABBV
|
+$540M |
| 3 |
Delta Air Lines
DAL
|
+$434M |
| 4 |
Eli Lilly
LLY
|
+$433M |
| 5 |
DexCom
DXCM
|
+$433M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.89% |
| 2 | Healthcare | 2.92% |
| 3 | Financials | 2.71% |
| 4 | Consumer Discretionary | 2.52% |
| 5 | Industrials | 2.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
9726
CALL
Westwater Resources
WWR
$72.7M
| $357K | ﹤0.01% |
476,400
+323,800
| +212% | +$402K |
|
9727
State Street SPDR S&P Capital Markets ETF
KCE
$480M
| $357K | ﹤0.01% |
2,383
-7,556
| -76% | -$1.12M |
|
9728
Invesco S&P Emerging Markets Momentum ETF
EEMO
$26.5M
| $357K | ﹤0.01% |
20,341
+1,118
| +6% | +$19.9K |
|
9729
PUT
iShares US Oil & Gas Exploration & Production ETF
IEO
$595M
| $357K | ﹤0.01% |
4,000
-800
| -17% | -$72.9K |
|
9730
CALL
Petco
WOOF
$805M
| $357K | ﹤0.01% |
127,000
-20,800
| -14% | -$67.3K |
|
|
KLC
9731
PUT
KinderCare Learning Companies
KLC
$308M
| $357K | ﹤0.01% |
82,600
-62,500
| -43% | -$315K |
|
9732
CALL
Middleby
MIDD
$5.33B
| $357K | ﹤0.01% |
2,400
-5,000
| -68% | -$656K |
|
9733
CALL
Mama's Creations
MAMA
$802M
| $356K | ﹤0.01% |
26,400
+6,400
| +32% | +$73.5K |
|
9734
ORIX
IX
$43.6B
| $356K | ﹤0.01% |
12,179
-40,311
| -77% | -$1.07M |
|
9735
CALL
Global X DAX Germany ETF
DAX
$237M
| $356K | ﹤0.01% |
7,800
-800
| -9% | -$35.6K |
|
|
HELP
9736
CALL
Cybin Inc
HELP
$743M
| $356K | ﹤0.01% |
43,500
-20,100
| -32% | -$129K |
|
9737
CALL
Nano X Imaging
NNOX
$74.1M
| $356K | ﹤0.01% |
127,000
+23,400
| +23% | +$84.1K |
|
9738
CALL
OptimizeRx
OPRX
$164M
| $356K | ﹤0.01% |
29,000
-31,200
| -52% | -$510K |
|
9739
PUT
ABM Industries
ABM
$2.82B
| $355K | ﹤0.01% |
8,400
-1,700
| -17% | -$74.7K |
|
9740
FlexShares iBoxx 5-Year Target Duration TIPS Index Fund
TDTF
$1.04B
| $355K | ﹤0.01% |
14,816
-27,998
| -65% | -$677K |
|
|
BLST
9741
Bluemonte Short Term Bond ETF
BLST
$168M
| $354K | ﹤0.01% |
14,036
-7,031
| -33% | -$178K |
|
9742
PUT
Sabra Healthcare REIT
SBRA
$5.19B
| $354K | ﹤0.01% |
18,700
+6,400
| +52% | +$119K |
|
9743
CALL
Adaptive Biotechnologies
ADPT
$3.94B
| $354K | ﹤0.01% |
21,800
+9,800
| +82% | +$160K |
|
9744
PUT
Group 1 Automotive
GPI
$3.15B
| $354K | ﹤0.01% |
900
-1,100
| -55% | -$452K |
|
9745
Hanover Bancorp
HNVR
$194M
| $354K | ﹤0.01% |
15,312
+2,391
| +19% | +$53.3K |
|
9746
CALL
iShares MSCI ACWI ETF
ACWI
$33.6B
| $354K | ﹤0.01% |
+2,500
| New | +$351K |
|
9747
CALL
Bank of N.T. Butterfield & Son
NTB
$2.51B
| $354K | ﹤0.01% |
+7,100
| New | +$327K |
|
9748
PUT
Stem
STEM
$61M
| $354K | ﹤0.01% |
23,500
-2,895
| -11% | -$55.5K |
|
9749
Coda Octopus Group
CODA
$119M
| $354K | ﹤0.01% |
38,015
+2,707
| +8% | +$24.4K |
|
9750
PUT
Medifast
MED
$128M
| $354K | ﹤0.01% |
33,100
+20,900
| +171% | +$250K |
|
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Ken Griffin's Q4 2025 Portfolio in Review
As of Q4 2025, Ken Griffin held 14,701 positions worth $666B, up 1.3% from $657B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin's Q4 2025 filing shows 2,078 new, 5,000 increased, 5,362 reduced and 2,191 closed positions. Its largest new stake was Medline Inc: 6,006,339 shares worth $252M. The largest sale was Meta Platforms (Facebook), an estimated $775M.
By sector, the portfolio is most concentrated in Technology at 4.9% of assets, up from 3.8% a quarter earlier, followed by Healthcare and Financials.
- Ken Griffin's largest Q4 2025 buy was Medline Inc: 6,006,339 shares worth $252M.
- Ken Griffin added most to Amazon in Q4 2025, an estimated $2.49B increase.
- Ken Griffin's biggest Q4 2025 reduction was Meta Platforms (Facebook), cutting an estimated $775M.
- Ken Griffin fully exited WEX in Q4 2025, selling an estimated $131M.
- Ken Griffin's ten largest holdings make up 23% of its $666B portfolio in Q4 2025.
- Ken Griffin opened 2,078 new positions and closed 2,191 in Q4 2025.
- Ken Griffin's portfolio value rose 1.3% quarter-over-quarter to $666B.
Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.