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 |
Meta Platforms (Facebook)
META
|
+$1.45B |
| 2 |
Visa
V
|
+$1.05B |
| 3 |
Microsoft
MSFT
|
+$1.01B |
| 4 |
Apple
AAPL
|
+$578M |
| 5 |
Norfolk Southern
NSC
|
+$545M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
HES
Hess
HES
|
+$1.24B |
| 2 |
McDonald's
MCD
|
+$707M |
| 3 |
JPMorgan Chase
JPM
|
+$680M |
| 4 |
Texas Instruments
TXN
|
+$678M |
| 5 |
Edwards Lifesciences
EW
|
+$664M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.8% |
| 2 | Healthcare | 2.66% |
| 3 | Financials | 2.38% |
| 4 | Consumer Discretionary | 2.05% |
| 5 | Industrials | 2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1376
FTAI Aviation
FTAI
$22.2B
| $49.1M | 0.01% |
294,376
-97,970
| -25% | -$13.9M |
|
1377
PUT
Five Below
FIVE
$13.5B
| $49.1M | 0.01% |
317,400
+34,100
| +12% | +$4.82M |
|
1378
CALL
Halliburton
HAL
$28.4B
| $49.1M | 0.01% |
1,994,900
+289,200
| +17% | +$6.4M |
|
1379
CALL
Monolithic Power Systems
MPWR
$67.8B
| $49.1M | 0.01% |
53,300
+10,700
| +25% | +$8.68M |
|
1380
CALL
Insmed
INSM
$26.9B
| $49M | 0.01% |
340,500
+244,700
| +255% | +$30M |
|
1381
PUT
Lumentum
LITE
$81.2B
| $49M | 0.01% |
301,300
+141,500
| +89% | +$17.6M |
|
1382
Fox Class B
FOX
$25.6B
| $49M | 0.01% |
855,556
-511,498
| -37% | -$27M |
|
1383
CleanSpark
CLSK
$2.96B
| $49M | 0.01% |
3,380,329
+790,678
| +31% | +$8.92M |
|
1384
CALL
HubSpot
HUBS
$11.5B
| $48.9M | 0.01% |
104,500
+62,800
| +151% | +$31.6M |
|
1385
Cboe Global Markets
CBOE
$30.9B
| $48.9M | 0.01% |
199,297
+120,104
| +152% | +$28.9M |
|
1386
PUT
Linde
LIN
$222B
| $48.8M | 0.01% |
102,700
-8,500
| -8% | -$4.02M |
|
1387
CALL
Energy Transfer Partners
ET
$72.2B
| $48.8M | 0.01% |
2,841,100
-311,100
| -10% | -$5.45M |
|
1388
PUT
Live Nation Entertainment
LYV
$43.9B
| $48.7M | 0.01% |
298,200
-15,000
| -5% | -$2.37M |
|
|
1389
PUT
Cboe Global Markets
CBOE
$30.9B
| $48.7M | 0.01% |
198,500
+135,300
| +214% | +$32.5M |
|
1390
CALL
UBS Group
UBS
$176B
| $48.6M | 0.01% |
1,186,000
+550,400
| +87% | +$21.4M |
|
1391
CALL
Ambarella
AMBA
$3.56B
| $48.6M | 0.01% |
588,800
+450,100
| +325% | +$32.7M |
|
1392
CALL
Jabil
JBL
$38.1B
| $48.5M | 0.01% |
223,500
+99,000
| +80% | +$21.6M |
|
|
EA
1393
PUT
DELISTED
Electronic Arts
EA
| $48.5M | 0.01% |
240,600
+89,500
| +59% | +$14.8M |
|
1394
Jackson Financial
JXN
$9.2B
| $48.4M | 0.01% |
478,055
+90,277
| +23% | +$8.43M |
|
1395
Zillow
Z
$7.86B
| $48.4M | 0.01% |
627,988
+490,720
| +357% | +$40.1M |
|
1396
CALL
State Street SPDR S&P Retail ETF
XRT
$641M
| $48.3M | 0.01% |
560,800
-942,900
| -63% | -$78.6M |
|
1397
NIO
NIO
$11.3B
| $48.3M | 0.01% |
6,337,114
+4,961,619
| +361% | +$26.7M |
|
1398
PUT
Cadence Design Systems
CDNS
$89.8B
| $48.2M | 0.01% |
137,300
+33,200
| +32% | +$11.4M |
|
1399
PUT
Rubrik
RBRK
$21.2B
| $48.2M | 0.01% |
586,300
+131,500
| +29% | +$11.3M |
|
1400
Banc of California
BANC
$3.11B
| $48.2M | 0.01% |
2,913,656
+2,577,452
| +767% | +$40.4M |
|
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Ken Griffin's Q3 2025 Portfolio in Review
As of Q3 2025, Ken Griffin held 14,587 positions worth $657B, up 14% from $576B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
Ken Griffin's Q3 2025 filing shows 2,292 new, 5,365 increased, 4,887 reduced and 1,963 closed positions. Its largest new stake was Permian Resources: 18,381,735 shares worth $235M. The largest sale was Hess, an estimated $1.24B.
By sector, the portfolio is most concentrated in Technology at 3.8% of assets, up from 3.3% a quarter earlier, followed by Healthcare and Financials.
- Ken Griffin's largest Q3 2025 buy was Permian Resources: 18,381,735 shares worth $235M.
- Ken Griffin added most to Meta Platforms (Facebook) in Q3 2025, an estimated $1.45B increase.
- Ken Griffin's biggest Q3 2025 reduction was McDonald's, cutting an estimated $707M.
- Ken Griffin fully exited Hess in Q3 2025, selling an estimated $1.24B.
- Ken Griffin's ten largest holdings make up 25% of its $657B portfolio in Q3 2025.
- Ken Griffin opened 2,292 new positions and closed 1,963 in Q3 2025.
- Ken Griffin's portfolio value rose 14% quarter-over-quarter to $657B.
Based on Citadel Advisors's 13F filing for Q3 2025, filed 14 Nov 2025.