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
|
+$2.72B |
| 2 |
Meta Platforms (Facebook)
META
|
+$660M |
| 3 |
Micron Technology
MU
|
+$605M |
| 4 |
Mastercard
MA
|
+$497M |
| 5 |
Tesla
TSLA
|
+$495M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$1.33B |
| 2 |
Visa
V
|
+$1.26B |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.23B |
| 4 |
Lam Research
LRCX
|
+$699M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$681M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.49% |
| 2 | Healthcare | 2.99% |
| 3 | Financials | 2.85% |
| 4 | Industrials | 2.56% |
| 5 | Consumer Discretionary | 2.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5676
CALL
Gold Royalty Corp
GROY
$716M
| $2.39M | ﹤0.01% |
667,000
-411,100
| -38% | -$1.76M |
|
|
XRPR
5677
REX-Osprey XRP ETF
XRPR
$38.6M
| $2.39M | ﹤0.01% |
216,453
-35,750
| -14% | -$473K |
|
5678
Cass Information Systems
CASS
$748M
| $2.38M | ﹤0.01% |
54,148
-13,112
| -19% | -$577K |
|
5679
CALL
HDFC Bank
HDB
$120B
| $2.38M | ﹤0.01% |
95,800
+65,900
| +220% | +$2.05M |
|
5680
Vanguard Financials ETF
VFH
$13.9B
| $2.38M | ﹤0.01% |
19,728
+2,006
| +11% | +$256K |
|
5681
PUT
CVR Energy
CVI
$3.57B
| $2.38M | ﹤0.01% |
70,800
+14,200
| +25% | +$365K |
|
5682
PUT
Braze
BRZE
$3.12B
| $2.38M | ﹤0.01% |
100,900
-129,900
| -56% | -$2.81M |
|
5683
First Internet Bancorp
INBK
$257M
| $2.38M | ﹤0.01% |
116,838
-10,064
| -8% | -$210K |
|
5684
PUT
Camtek
CAMT
$8.17B
| $2.38M | ﹤0.01% |
15,700
-57,300
| -78% | -$8.69M |
|
5685
SI-BONE Inc
SIBN
$844M
| $2.38M | ﹤0.01% |
188,226
-122,122
| -39% | -$1.91M |
|
|
WRD
5686
PUT
WeRide Inc
WRD
$1.97B
| $2.38M | ﹤0.01% |
293,800
-40,300
| -12% | -$312K |
|
5687
CALL
DigitalBridge
DBRG
$2.95B
| $2.37M | ﹤0.01% |
154,000
-476,100
| -76% | -$7.33M |
|
5688
PUT
Flowserve
FLS
$10.2B
| $2.37M | ﹤0.01% |
32,300
-7,800
| -19% | -$618K |
|
5689
CALL
Brown & Brown
BRO
$23.7B
| $2.37M | ﹤0.01% |
36,400
+13,100
| +56% | +$944K |
|
5690
CALL
Brink's
BCO
$4.7B
| $2.37M | ﹤0.01% |
22,900
+10,400
| +83% | +$1.25M |
|
5691
PUT
Murphy USA
MUSA
$10.2B
| $2.37M | ﹤0.01% |
4,800
-12,800
| -73% | -$5.48M |
|
5692
Opko Health
OPK
$1.04B
| $2.37M | ﹤0.01% |
2,079,547
-777,886
| -27% | -$958K |
|
5693
PUT
Oshkosh
OSK
$9.43B
| $2.37M | ﹤0.01% |
16,100
-1,600
| -9% | -$249K |
|
5694
PUT
Herc Holdings
HRI
$5.61B
| $2.37M | ﹤0.01% |
23,800
+3,300
| +16% | +$471K |
|
5695
VanEck Steel ETF
SLX
$174M
| $2.37M | ﹤0.01% |
+25,799
| New | +$2.42M |
|
|
CLYM
5696
Climb Bio
CLYM
$846M
| $2.37M | ﹤0.01% |
345,663
+106,620
| +45% | +$615K |
|
|
THR
5697
DELISTED
Thermon Group Holdings
THR
| $2.37M | ﹤0.01% |
+46,955
| New | +$2.19M |
|
5698
PUT
Aecom
ACM
$7.93B
| $2.37M | ﹤0.01% |
27,900
+16,600
| +147% | +$1.57M |
|
5699
iShares S&P GSCI Commodity-Indexed Trust
GSG
$933M
| $2.36M | ﹤0.01% |
73,171
+25,440
| +53% | +$679K |
|
5700
Immuneering
IMRX
$334M
| $2.36M | ﹤0.01% |
447,278
+356,819
| +394% | +$1.83M |
|
Similar funds
Ken Griffin's Q1 2026 Portfolio in Review
As of Q1 2026, Ken Griffin held 14,860 positions worth $618B, down 7.1% from $666B the previous quarter. Its ten largest holdings account for 22% of the portfolio.
Ken Griffin withdrew a net $19.5B in Q1 2026, closing 2,003 positions and reducing 5,286 holdings. Its most notable exit was CyberArk, an estimated $305M position sold in full.
By sector, the portfolio is most concentrated in Technology at 4.5% of assets, down from 4.9% a quarter earlier, followed by Healthcare and Financials.
Against the trend, Ken Griffin opened a new position in iShares 7-10 Year Treasury Bond ETF worth $327M.
- Ken Griffin's largest Q1 2026 buy was iShares 7-10 Year Treasury Bond ETF: 3,431,225 shares worth $327M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q1 2026, an estimated $2.72B increase.
- Ken Griffin's biggest Q1 2026 reduction was Amazon, cutting an estimated $1.33B.
- Ken Griffin fully exited CyberArk in Q1 2026, selling an estimated $305M.
- Ken Griffin's ten largest holdings make up 22% of its $618B portfolio in Q1 2026.
- Ken Griffin opened 2,347 new positions and closed 2,003 in Q1 2026.
- Ken Griffin's portfolio value fell 7.1% quarter-over-quarter to $618B.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.