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 | |
|---|---|---|---|---|---|---|
4226
Direxion Daily AMZN Bull 2X ETF
AMZU
$309M
| $5.07M | ﹤0.01% |
+145,112
| New | +$5.28M |
|
4227
Lightspeed Commerce
LSPD
$1.38B
| $5.07M | ﹤0.01% |
419,506
+163,426
| +64% | +$1.94M |
|
4228
CALL
iShares National Muni Bond ETF
MUB
$45.8B
| $5.07M | ﹤0.01% |
47,300
-11,600
| -20% | -$1.24M |
|
|
VNET
4229
VNET Group
VNET
$2.16B
| $5.07M | ﹤0.01% |
598,830
+223,875
| +60% | +$2.07M |
|
|
PLGO
4230
Pelagos Insurance Capital
PLGO
$2.04B
| $5.06M | ﹤0.01% |
+258,785
| New | +$4.82M |
|
4231
iShares MSCI Brazil Small-Cap ETF
EWZS
$205M
| $5.06M | ﹤0.01% |
391,495
+42,476
| +12% | +$573K |
|
4232
Simpson Manufacturing
SSD
$7.94B
| $5.06M | ﹤0.01% |
31,315
-6,962
| -18% | -$1.18M |
|
4233
PUT
Americold
COLD
$4.25B
| $5.05M | ﹤0.01% |
393,000
+161,800
| +70% | +$1.98M |
|
4234
Valmont Industries
VMI
$9.56B
| $5.05M | ﹤0.01% |
12,559
+4,694
| +60% | +$1.91M |
|
4235
ODDITY Tech
ODD
$605M
| $5.05M | ﹤0.01% |
125,746
-149,284
| -54% | -$6.75M |
|
4236
CALL
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.71B
| $5.05M | ﹤0.01% |
125,200
-100
| -0.1% | -$4.12K |
|
4237
Simulations Plus
SLP
$371M
| $5.05M | ﹤0.01% |
277,015
-75,570
| -21% | -$1.33M |
|
|
PPL
4238
CALL
PPL Corp
PPL
$27.1B
| $5.05M | ﹤0.01% |
144,200
-48,700
| -25% | -$1.76M |
|
4239
PUT
Viasat
VSAT
$11.4B
| $5.04M | ﹤0.01% |
146,400
-17,200
| -11% | -$607K |
|
|
SGI
4240
CALL
Somnigroup International
SGI
$13.9B
| $5.04M | ﹤0.01% |
56,500
+700
| +1% | +$61.2K |
|
4241
Kosmos Energy
KOS
$1.51B
| $5.04M | ﹤0.01% |
5,556,252
-1,069,269
| -16% | -$1.41M |
|
|
LTM
4242
CALL
LATAM Airlines Group S.A.
LTM
$15B
| $5.04M | ﹤0.01% |
93,300
+900
| +1% | +$42.6K |
|
4243
PUT
Vanguard Total World Stock ETF
VT
$81.8B
| $5.04M | ﹤0.01% |
35,700
-11,800
| -25% | -$1.65M |
|
4244
Ericsson
ERIC
$33.6B
| $5.03M | ﹤0.01% |
521,485
-3,328,683
| -86% | -$31.5M |
|
4245
PUT
CoStar Group
CSGP
$13.1B
| $5.03M | ﹤0.01% |
74,738
+33,700
| +82% | +$2.39M |
|
4246
PUT
Direxion Daily Gold Miners Index Bear 2X ETF
DUST
$50.4M
| $5.02M | ﹤0.01% |
67,490
+18,900
| +39% | +$1.82M |
|
4247
MoonLake Immunotherapeutics
MLTX
$1.4B
| $5.02M | ﹤0.01% |
380,890
+331,556
| +672% | +$3.91M |
|
|
PONY
4248
CALL
Pony AI Inc
PONY
$3.54B
| $5.01M | ﹤0.01% |
345,700
-775,400
| -69% | -$12.9M |
|
4249
CALL
Ferguson
FERG
$47.4B
| $5.01M | ﹤0.01% |
22,500
-7,700
| -25% | -$1.84M |
|
|
SOLS
4250
PUT
Solstice Advanced Materials
SOLS
$9.95B
| $5.01M | ﹤0.01% |
+103,100
| New | +$4.85M |
|
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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.