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 |
NVIDIA
NVDA
|
+$820M |
| 2 |
Microsoft
MSFT
|
+$811M |
| 3 |
McDonald's
MCD
|
+$804M |
| 4 |
Coca-Cola
KO
|
+$655M |
| 5 |
Amazon
AMZN
|
+$646M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SCHW
Charles Schwab
SCHW
|
+$1.64B |
| 2 |
Invesco QQQ Trust
QQQ
|
+$1.1B |
| 3 |
Strategy Inc
MSTR
|
+$564M |
| 4 |
Kroger
KR
|
+$558M |
| 5 |
Danaher
DHR
|
+$494M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.33% |
| 2 | Healthcare | 3.23% |
| 3 | Consumer Discretionary | 2.55% |
| 4 | Financials | 2.55% |
| 5 | Industrials | 1.94% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2501
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
| $14.7M | ﹤0.01% |
160,440
+83,180
| +108% | +$7.62M |
|
2502
Galicia Financial Group
GGAL
$6.97B
| $14.7M | ﹤0.01% |
291,728
+43,490
| +18% | +$2.49M |
|
|
BRSL
2503
PUT
Brightstar Lottery PLC
BRSL
$2.15B
| $14.7M | ﹤0.01% |
929,500
+799,500
| +615% | +$12.6M |
|
2504
CALL
ProShares UltraPro Russell2000
URTY
$368M
| $14.7M | ﹤0.01% |
373,000
+168,500
| +82% | +$5.55M |
|
2505
MasTec
MTZ
$23.9B
| $14.7M | ﹤0.01% |
86,162
-89,608
| -51% | -$12.9M |
|
2506
Newell Brands
NWL
$2.66B
| $14.7M | ﹤0.01% |
2,718,649
-726,233
| -21% | -$3.85M |
|
2507
Rigetti Computing
RGTI
$6.28B
| $14.7M | ﹤0.01% |
1,237,510
+427,562
| +53% | +$4.51M |
|
2508
Calix
CALX
$2.49B
| $14.7M | ﹤0.01% |
275,708
+202,411
| +276% | +$8.66M |
|
2509
Marqeta
MQ
$1.7B
| $14.7M | ﹤0.01% |
628,690
+371,389
| +144% | +$7.05M |
|
2510
CALL
Sprouts Farmers Market
SFM
$7.69B
| $14.7M | ﹤0.01% |
89,000
-35,400
| -28% | -$5.78M |
|
2511
CALL
Idexx Laboratories
IDXX
$43.4B
| $14.6M | ﹤0.01% |
27,300
+10,300
| +61% | +$4.93M |
|
2512
PUT
Ares Management
ARES
$32.5B
| $14.6M | ﹤0.01% |
84,500
-29,600
| -26% | -$4.68M |
|
2513
SSR Mining
SSRM
$6.56B
| $14.6M | ﹤0.01% |
1,147,559
+747,627
| +187% | +$8.43M |
|
2514
Blackbaud
BLKB
$2.05B
| $14.6M | ﹤0.01% |
227,412
+170,937
| +303% | +$10.7M |
|
2515
CALL
United States Natural Gas Fund
UNG
$487M
| $14.6M | ﹤0.01% |
954,900
+418,575
| +78% | +$7.22M |
|
2516
Service Corp International
SCI
$11.5B
| $14.6M | ﹤0.01% |
179,141
-422,532
| -70% | -$33M |
|
2517
CALL
Caesars Entertainment
CZR
$6.06B
| $14.6M | ﹤0.01% |
512,700
-488,100
| -49% | -$13.3M |
|
2518
Hertz
HTZ
$798M
| $14.5M | ﹤0.01% |
2,129,372
+1,630,083
| +326% | +$10.2M |
|
|
TERN
2519
DELISTED
Terns Pharmaceuticals
TERN
| $14.5M | ﹤0.01% |
3,899,011
-8,876
| -0.2% | -$27.7K |
|
2520
PUT
HF Sinclair
DINO
$16.7B
| $14.5M | ﹤0.01% |
353,900
-149,700
| -30% | -$5.15M |
|
2521
PUT
Arthur J. Gallagher & Co
AJG
$64.4B
| $14.5M | ﹤0.01% |
45,400
+17,400
| +62% | +$5.74M |
|
2522
CALL
Middleby
MIDD
$5.33B
| $14.5M | ﹤0.01% |
100,900
-13,900
| -12% | -$1.96M |
|
2523
PUT
Mobileye
MBLY
$7.58B
| $14.5M | ﹤0.01% |
807,600
-569,800
| -41% | -$8.71M |
|
2524
MKS Inc
MKSI
$21B
| $14.5M | ﹤0.01% |
+146,038
| New | +$11.9M |
|
2525
Lexeo Therapeutics
LXEO
$397M
| $14.5M | ﹤0.01% |
3,607,967
+884,604
| +32% | +$2.91M |
|
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Ken Griffin's Q2 2025 Portfolio in Review
As of Q2 2025, Ken Griffin held 15,819 positions worth $576B, up 9.2% from $527B the previous quarter. Its ten largest holdings account for 27% of the portfolio.
Ken Griffin withdrew a net $29.1B in Q2 2025, closing 3,524 positions and reducing 5,141 holdings. Its most notable exit was Kroger, an estimated $558M position sold in full.
By sector, the portfolio is most concentrated in Technology at 3.3% of assets, up from 2.9% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Ken Griffin opened a new position in Walmart Inc worth $401M.
- Ken Griffin's largest Q2 2025 buy was Walmart Inc: 4,099,492 shares worth $401M.
- Ken Griffin added most to NVIDIA in Q2 2025, an estimated $820M increase.
- Ken Griffin's biggest Q2 2025 reduction was Charles Schwab, cutting an estimated $1.64B.
- Ken Griffin fully exited Kroger in Q2 2025, selling an estimated $558M.
- Ken Griffin's ten largest holdings make up 27% of its $576B portfolio in Q2 2025.
- Ken Griffin opened 1,459 new positions and closed 3,524 in Q2 2025.
- Ken Griffin's portfolio value rose 9.2% quarter-over-quarter to $576B.
Based on Citadel Advisors's 13F filing for Q2 2025, filed 14 Aug 2025.