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 | |
|---|---|---|---|---|---|---|
626
PUT
Roku
ROKU
$22.9B
| $124M | 0.02% |
1,412,200
+495,200
| +54% | +$34.6M |
|
627
CALL
Enphase Energy
ENPH
$5.39B
| $124M | 0.02% |
3,121,100
+351,000
| +13% | +$16.2M |
|
628
Micron Technology
MU
$1.07T
| $124M | 0.02% |
1,004,060
-106,952
| -10% | -$9.99M |
|
629
Cummins
CMI
$87B
| $124M | 0.02% |
377,317
+319,156
| +549% | +$98.8M |
|
630
Cameco
CCJ
$42.6B
| $123M | 0.02% |
1,658,012
+949,417
| +134% | +$50.7M |
|
631
PepsiCo
PEP
$192B
| $123M | 0.02% |
931,768
-231,708
| -20% | -$31.2M |
|
632
PUT
Microchip Technology
MCHP
$42.2B
| $123M | 0.02% |
1,748,200
+699,000
| +67% | +$38.4M |
|
633
Copart
CPRT
$27.2B
| $123M | 0.02% |
2,502,382
+2,049,649
| +453% | +$115M |
|
634
PUT
Western Digital
WDC
$168B
| $123M | 0.02% |
1,916,100
+115,700
| +6% | +$5.51M |
|
635
Woodward
WWD
$21.2B
| $122M | 0.02% |
499,449
+263,601
| +112% | +$53.9M |
|
|
636
CALL
Kroger
KR
$35.1B
| $122M | 0.02% |
1,704,900
+205,000
| +14% | +$14.2M |
|
637
Qorvo
QRVO
$8.68B
| $122M | 0.02% |
1,437,414
+319,832
| +29% | +$23.1M |
|
638
CALL
American Airlines Group
AAL
$9.97B
| $122M | 0.02% |
10,864,200
-35,100
| -0.3% | -$376K |
|
639
PUT
Carnival Corporation Ltd
CCL
$38.9B
| $122M | 0.02% |
4,323,100
-1,010,900
| -19% | -$21.6M |
|
640
CALL
American Tower
AMT
$81.2B
| $121M | 0.02% |
549,700
+190,200
| +53% | +$41.1M |
|
641
PUT
Thermo Fisher Scientific
TMO
$220B
| $121M | 0.02% |
299,600
+163,700
| +120% | +$68.4M |
|
642
Brinker International
EAT
$10.2B
| $121M | 0.02% |
673,106
-292,133
| -30% | -$45.8M |
|
643
SBA Communications
SBAC
$19.8B
| $121M | 0.02% |
514,306
+378,241
| +278% | +$86.6M |
|
644
Coinbase
COIN
$40.6B
| $121M | 0.02% |
344,241
-3,517
| -1% | -$822K |
|
645
GameStop
GME
$8.33B
| $121M | 0.02% |
4,945,930
+2,173,746
| +78% | +$58.3M |
|
646
Old National Bancorp
ONB
$10.4B
| $120M | 0.02% |
5,644,811
+2,797,617
| +98% | +$57.9M |
|
647
Encompass Health
EHC
$12.2B
| $120M | 0.02% |
980,396
+40,341
| +4% | +$4.61M |
|
648
Wingstop
WING
$3.1B
| $120M | 0.02% |
+356,478
| New | +$105M |
|
649
First Horizon
FHN
$12.3B
| $120M | 0.02% |
5,642,598
-132,883
| -2% | -$2.53M |
|
650
DexCom
DXCM
$34.5B
| $119M | 0.02% |
1,368,728
-758,695
| -36% | -$59.5M |
|
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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.