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 | |
|---|---|---|---|---|---|---|
2426
PUT
Goodyear
GT
$1.76B
| $15.5M | ﹤0.01% |
1,493,000
-2,000
| -0.1% | -$21.2K |
|
2427
Astronics
ATRO
$4.61B
| $15.5M | ﹤0.01% |
553,940
+70,954
| +15% | +$1.66M |
|
2428
CareDx
CDNA
$2.34B
| $15.4M | ﹤0.01% |
790,667
-3,145
| -0.4% | -$55.9K |
|
2429
PUT
ProShares Ultra S&P500
SSO
$8.47B
| $15.4M | ﹤0.01% |
316,200
-27,600
| -8% | -$1.17M |
|
2430
CALL
Campbell Soup
CPB
$6.91B
| $15.4M | ﹤0.01% |
503,900
+325,500
| +182% | +$11.5M |
|
2431
CALL
StoneCo
STNE
$2.32B
| $15.4M | ﹤0.01% |
962,500
+582,900
| +154% | +$7.78M |
|
2432
CALL
J.M. Smucker
SJM
$13B
| $15.4M | ﹤0.01% |
157,000
+16,100
| +11% | +$1.77M |
|
2433
Flywire
FLYW
$2.29B
| $15.4M | ﹤0.01% |
1,317,669
-2,089,914
| -61% | -$21.3M |
|
2434
Unity
U
$20.4B
| $15.4M | ﹤0.01% |
636,837
-440,798
| -41% | -$9.7M |
|
2435
PUT
Novartis
NVS
$287B
| $15.4M | ﹤0.01% |
127,300
+41,700
| +49% | +$4.7M |
|
2436
iRhythm Holdings
IRTC
$4.17B
| $15.4M | ﹤0.01% |
100,023
+96,921
| +3,124% | +$12.5M |
|
2437
PUT
Bilibili
BILI
$7.3B
| $15.4M | ﹤0.01% |
717,100
-426,700
| -37% | -$7.85M |
|
2438
Sphere Entertainment
SPHR
$6.03B
| $15.4M | ﹤0.01% |
367,475
-528,701
| -59% | -$17.9M |
|
2439
CALL
iShares US Technology ETF
IYW
$25.6B
| $15.3M | ﹤0.01% |
88,500
+32,500
| +58% | +$4.93M |
|
2440
PUT
Norfolk Southern
NSC
$75.1B
| $15.3M | ﹤0.01% |
59,900
-3,900
| -6% | -$920K |
|
2441
Peloton Interactive
PTON
$2.47B
| $15.3M | ﹤0.01% |
2,208,608
-1,118,538
| -34% | -$7.27M |
|
2442
PUT
Magnite
MGNI
$3.55B
| $15.3M | ﹤0.01% |
634,900
+270,700
| +74% | +$3.99M |
|
2443
CALL
Boyd Gaming
BYD
$6.11B
| $15.3M | ﹤0.01% |
195,600
-23,600
| -11% | -$1.69M |
|
2444
PUT
CSX Corp
CSX
$92.9B
| $15.3M | ﹤0.01% |
468,900
+299,000
| +176% | +$9M |
|
2445
CALL
Planet Fitness
PLNT
$3.8B
| $15.3M | ﹤0.01% |
140,300
-46,800
| -25% | -$4.69M |
|
2446
Sable Offshore Corp
SOC
$796M
| $15.3M | ﹤0.01% |
695,961
+463,166
| +199% | +$10.8M |
|
2447
HEICO Corp Class A
HEI.A
$38.4B
| $15.3M | ﹤0.01% |
59,096
-5,293
| -8% | -$1.16M |
|
2448
PUT
Plains GP Holdings
PAGP
$5.11B
| $15.3M | ﹤0.01% |
786,000
-105,600
| -12% | -$1.97M |
|
2449
ProShares Bitcoin Strategy ETF
BITO
$1.42B
| $15.3M | ﹤0.01% |
+709,431
| New | +$14.6M |
|
2450
Tronox
TROX
$952M
| $15.2M | ﹤0.01% |
3,007,175
+756,271
| +34% | +$4.12M |
|
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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.