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 | |
|---|---|---|---|---|---|---|
826
Alcoa
AA
$13.1B
| $106M | 0.02% |
1,986,438
-674,512
| -25% | -$27.6M |
|
827
PUT
TJX Companies
TJX
$170B
| $105M | 0.02% |
686,700
+176,600
| +35% | +$26.1M |
|
828
CALL
Wayfair
W
$13.9B
| $105M | 0.02% |
1,049,000
-167,400
| -14% | -$16.1M |
|
829
PUT
Centrus Energy
LEU
$3.83B
| $105M | 0.02% |
432,700
-192,500
| -31% | -$58.1M |
|
830
VF Corp
VFC
$5.79B
| $105M | 0.02% |
5,809,310
+4,488,622
| +340% | +$72.7M |
|
|
SW
831
Smurfit Westrock
SW
$26.2B
| $105M | 0.02% |
2,706,284
+1,772,312
| +190% | +$67.6M |
|
832
PUT
Charter Communications
CHTR
$18.7B
| $105M | 0.02% |
500,900
+108,000
| +27% | +$24.3M |
|
833
Maplebear
CART
$11.6B
| $105M | 0.02% |
2,324,430
-361,160
| -13% | -$14.8M |
|
834
CALL
ProShares UltraPro Short QQQ
SQQQ
$1.67B
| $105M | 0.02% |
1,526,300
+590,904
| +63% | +$41.8M |
|
835
Devon Energy
DVN
$48.8B
| $104M | 0.02% |
2,849,684
+1,052,236
| +59% | +$36.7M |
|
836
Armstrong World Industries
AWI
$7.68B
| $104M | 0.02% |
546,089
+190,867
| +54% | +$36.4M |
|
837
Mastercard
MA
$497B
| $104M | 0.02% |
182,697
+12,382
| +7% | +$6.92M |
|
838
CALL
Medtronic
MDT
$116B
| $104M | 0.02% |
1,082,100
+230,900
| +27% | +$22.4M |
|
839
NiSource
NI
$20.2B
| $104M | 0.02% |
2,486,380
+1,311,290
| +112% | +$56M |
|
840
Revolution Medicines
RVMD
$43.3B
| $104M | 0.02% |
1,302,361
+122,276
| +10% | +$8.02M |
|
841
CALL
Fortinet
FTNT
$121B
| $104M | 0.02% |
1,303,500
-523,000
| -29% | -$43.4M |
|
842
Haemonetics
HAE
$4.11B
| $103M | 0.02% |
1,288,432
+1,067,004
| +482% | +$71.7M |
|
843
Nokia
NOK
$59B
| $103M | 0.02% |
15,937,658
+6,245,023
| +64% | +$38.7M |
|
844
GE Vernova
GEV
$279B
| $103M | 0.02% |
157,595
+16,711
| +12% | +$10.2M |
|
845
Genpact
G
$5.78B
| $103M | 0.02% |
2,199,644
-43,525
| -2% | -$1.88M |
|
846
StepStone Group
STEP
$4.28B
| $103M | 0.02% |
1,599,158
+89,738
| +6% | +$5.67M |
|
847
Viatris
VTRS
$18.4B
| $103M | 0.02% |
8,237,283
-2,229,004
| -21% | -$24M |
|
848
Yum! Brands
YUM
$41.2B
| $103M | 0.02% |
677,773
-1,330,874
| -66% | -$197M |
|
849
Cousins Properties
CUZ
$4.93B
| $102M | 0.02% |
3,963,687
+2,457,792
| +163% | +$63.9M |
|
850
TD Synnex
SNX
$20.4B
| $102M | 0.02% |
679,921
+21,576
| +3% | +$3.31M |
|
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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.