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 |
iShares Core S&P 500 ETF
IVV
|
+$9.91B |
| 2 |
SPCX
SpaceX
SPCX
|
+$871M |
| 3 |
Eli Lilly
LLY
|
+$719M |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$3B |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.54B |
| 3 |
TSMC
TSM
|
+$1.42B |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
SNDK
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.92% |
| 2 | Healthcare | 2.55% |
| 3 | Industrials | 2.24% |
| 4 | Financials | 2.13% |
| 5 | Consumer Discretionary | 1.76% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3251
PUT
Penumbra
PEN
$12.9B
| $11.9M | ﹤0.01% |
37,600
+8,000
| +27% | +$2.59M |
|
3252
CALL
Teledyne Technologies
TDY
$31.5B
| $11.9M | ﹤0.01% |
17,800
+5,600
| +46% | +$3.53M |
|
3253
PUT
Symbotic
SYM
$5.55B
| $11.9M | ﹤0.01% |
263,700
+110,300
| +72% | +$5.62M |
|
3254
Invesco DB US Dollar Index Bullish Fund
UUP
$413M
| $11.8M | ﹤0.01% |
416,859
+159,654
| +62% | +$4.43M |
|
3255
World Kinect Corp
WKC
$1.85B
| $11.8M | ﹤0.01% |
358,948
+278,529
| +346% | +$7.75M |
|
3256
CALL
Edison International
EIX
$27.5B
| $11.8M | ﹤0.01% |
158,600
+72,200
| +84% | +$5.15M |
|
3257
State Street SPDR S&P Metals & Mining ETF
XME
$4.53B
| $11.8M | ﹤0.01% |
+110,304
| New | +$13M |
|
3258
CALL
Corteva
CTVA
$51.2B
| $11.8M | ﹤0.01% |
139,200
-25,400
| -15% | -$2.04M |
|
|
JBGS
3259
JBG SMITH
JBGS
$672M
| $11.8M | ﹤0.01% |
803,589
+426,555
| +113% | +$6.31M |
|
3260
MPLX
MPLX
$60.3B
| $11.8M | ﹤0.01% |
209,147
+203,901
| +3,887% | +$11.4M |
|
|
UCTT
3261
CALL
Ultra Clean Holdings
UCTT
$3.85B
| $11.8M | ﹤0.01% |
82,600
+14,200
| +21% | +$1.25M |
|
3262
BILL Holdings
BILL
$4.96B
| $11.8M | ﹤0.01% |
325,658
-1,023,639
| -76% | -$37.7M |
|
3263
Avient
AVNT
$4.25B
| $11.8M | ﹤0.01% |
318,427
+264,415
| +490% | +$9.57M |
|
|
UCTT
3264
Ultra Clean Holdings
UCTT
$3.85B
| $11.8M | ﹤0.01% |
82,499
-56,724
| -41% | -$4.99M |
|
3265
PUT
Fidelity Wise Origin Bitcoin Fund
FBTC
$11.7B
| $11.8M | ﹤0.01% |
230,400
-10,600
| -4% | -$662K |
|
3266
LSB Industries
LXU
$737M
| $11.8M | ﹤0.01% |
1,087,599
+270,036
| +33% | +$3.61M |
|
|
STUB
3267
CALL
StubHub Holdings
STUB
$3.09B
| $11.7M | ﹤0.01% |
912,400
+230,200
| +34% | +$2.03M |
|
3268
PUT
Transocean
RIG
$6.43B
| $11.7M | ﹤0.01% |
2,401,300
+32,100
| +1% | +$201K |
|
3269
CALL
Synaptics
SYNA
$4.25B
| $11.7M | ﹤0.01% |
94,500
-229,800
| -71% | -$25.9M |
|
3270
NuScale Power
SMR
$3.85B
| $11.7M | ﹤0.01% |
1,169,399
-361,673
| -24% | -$4.08M |
|
3271
PUT
Denali Therapeutics
DNLI
$3.9B
| $11.7M | ﹤0.01% |
455,800
+326,500
| +253% | +$6.71M |
|
3272
Eversource Energy
ES
$27.2B
| $11.7M | ﹤0.01% |
162,200
-27,104
| -14% | -$1.88M |
|
3273
CALL
Barclays
BCS
$94.7B
| $11.7M | ﹤0.01% |
436,200
+173,400
| +66% | +$4.18M |
|
|
INFQ
3274
CALL
Infleqtion Inc
INFQ
$2.89B
| $11.7M | ﹤0.01% |
879,600
+268,200
| +44% | +$3.69M |
|
3275
Regal Rexnord
RRX
$11.7B
| $11.7M | ﹤0.01% |
49,151
-151,450
| -75% | -$31.6M |
|
Similar funds
Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,447 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin deployed $103B of net new capital in Q2 2026, opening 2,575 new positions and adding to 6,089 existing holdings. Its largest new stake was SpaceX: 5,129,884 shares worth $876M.
By sector, the portfolio is most concentrated in Technology at 3.9% of assets, down from 4.5% a quarter earlier, followed by Healthcare and Industrials.
On the sell side, the largest reduction was Micron Technology, an estimated $3B trimmed.
- Ken Griffin's largest Q2 2026 buy was SpaceX: 5,129,884 shares worth $876M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q2 2026, an estimated $9.91B increase.
- Ken Griffin's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $3B.
- Ken Griffin fully exited iShares 7-10 Year Treasury Bond ETF in Q2 2026, selling an estimated $325M.
- Ken Griffin's ten largest holdings make up 23% of its $875B portfolio in Q2 2026.
- Ken Griffin opened 2,575 new positions and closed 1,872 in Q2 2026.
- Ken Griffin's portfolio value rose 41% quarter-over-quarter to $875B.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.