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 | |
|---|---|---|---|---|---|---|
8301
CALL
Popular Inc
BPOP
$11.3B
| $660K | ﹤0.01% |
5,300
-6,000
| -53% | -$709K |
|
8302
State Street SPDR US Small Cap Low Volatility Index ETF
SMLV
$260M
| $660K | ﹤0.01% |
+5,030
| New | +$652K |
|
8303
CALL
Sturm, Ruger & Co
RGR
$598M
| $660K | ﹤0.01% |
20,200
+2,600
| +15% | +$96.4K |
|
8304
CapForce IBD Breakout Opportunities ETF
BOUT
$15.8M
| $659K | ﹤0.01% |
+18,156
| New | +$681K |
|
8305
PUT
IDEX
IEX
$17.7B
| $658K | ﹤0.01% |
3,700
+1,400
| +61% | +$239K |
|
8306
CALL
Vanguard Communication Services ETF
VOX
$5.8B
| $658K | ﹤0.01% |
3,400
+1,000
| +42% | +$188K |
|
8307
Digimarc Corp
DMRC
$152M
| $658K | ﹤0.01% |
100,298
-71,989
| -42% | -$610K |
|
|
DGXX
8308
CALL
Digi Power X Inc
DGXX
$382M
| $658K | ﹤0.01% |
+258,000
| New | +$967K |
|
8309
Aviat Networks
AVNW
$285M
| $658K | ﹤0.01% |
30,762
+4,380
| +17% | +$97.7K |
|
8310
PUT
iShares MSCI Global Metals & Mining Producers ETF
PICK
$2.34B
| $657K | ﹤0.01% |
12,800
+100
| +0.8% | +$4.72K |
|
8311
PUT
MakeMyTrip
MMYT
$5.62B
| $657K | ﹤0.01% |
8,000
-3,800
| -32% | -$312K |
|
8312
Amplify Energy
AMPY
$200M
| $657K | ﹤0.01% |
143,666
-213,276
| -60% | -$1.06M |
|
|
ONIT
8313
Onity Group
ONIT
$320M
| $656K | ﹤0.01% |
14,337
-33,115
| -70% | -$1.36M |
|
8314
PUT
ICU Medical
ICUI
$4.56B
| $656K | ﹤0.01% |
4,600
-2,000
| -30% | -$268K |
|
|
VLOSW
8315
Velos Acquisition I Corp Warrant
VLOSW
| $656K | ﹤0.01% |
750,000
-100
| -0% | -$99 |
|
8316
CALL
Prime Medicine
PRME
$575M
| $656K | ﹤0.01% |
189,100
+58,300
| +45% | +$259K |
|
8317
PUT
iShares US Transportation ETF
IYT
$2.28B
| $656K | ﹤0.01% |
8,800
-400
| -4% | -$29.1K |
|
|
SNBR
8318
PUT
DELISTED
Sleep Number
SNBR
| $656K | ﹤0.01% |
77,500
-59,900
| -44% | -$379K |
|
|
ARX
8319
CALL
Accelerant Holdings
ARX
$4.26B
| $656K | ﹤0.01% |
40,100
+22,000
| +122% | +$310K |
|
8320
CALL
Janux Therapeutics
JANX
$994M
| $656K | ﹤0.01% |
47,500
+34,900
| +277% | +$821K |
|
8321
Spok Holdings
SPOK
$230M
| $655K | ﹤0.01% |
49,692
+26,335
| +113% | +$373K |
|
8322
PUT
Prospect Capital
PSEC
$1.11B
| $655K | ﹤0.01% |
253,000
-310,500
| -55% | -$829K |
|
8323
PUT
iShares 1-3 Year Treasury Bond ETF
SHY
$25.5B
| $654K | ﹤0.01% |
7,900
-11,800
| -60% | -$978K |
|
8324
PUT
IDEAYA Biosciences
IDYA
$3.52B
| $653K | ﹤0.01% |
+18,900
| New | +$603K |
|
8325
AngioDynamics
ANGO
$648M
| $653K | ﹤0.01% |
+50,883
| New | +$628K |
|
Similar funds
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.