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 | |
|---|---|---|---|---|---|---|
4926
PUT
VICI Properties
VICI
$29B
| $3.49M | ﹤0.01% |
127,700
-114,800
| -47% | -$3.29M |
|
4927
Expro Ltd
XPRO
$2.07B
| $3.49M | ﹤0.01% |
200,218
+28,191
| +16% | +$463K |
|
4928
Denali Therapeutics
DNLI
$3.97B
| $3.48M | ﹤0.01% |
181,417
-597,731
| -77% | -$11.9M |
|
4929
PUT
iShares US Industrials ETF
IYJ
$1.96B
| $3.48M | ﹤0.01% |
+23,600
| New | +$3.65M |
|
4930
PUT
Blue Owl Capital
OBDC
$5.87B
| $3.48M | ﹤0.01% |
314,800
+269,600
| +596% | +$3.16M |
|
4931
New Jersey Resources
NJR
$5.64B
| $3.48M | ﹤0.01% |
63,280
-356,853
| -85% | -$18.4M |
|
4932
PUT
Tenaris
TS
$26.6B
| $3.47M | ﹤0.01% |
59,700
-4,400
| -7% | -$217K |
|
4933
Innodata
INOD
$2.03B
| $3.47M | ﹤0.01% |
89,900
+18,033
| +25% | +$899K |
|
4934
MGE Energy Inc
MGEE
$3.06B
| $3.47M | ﹤0.01% |
44,911
-6,206
| -12% | -$489K |
|
4935
Telkom Indonesia
TLK
$14.5B
| $3.47M | ﹤0.01% |
185,762
+162,657
| +704% | +$3.32M |
|
4936
Global X Artificial Intelligence & Technology ETF
AIQ
$10.4B
| $3.47M | ﹤0.01% |
+74,332
| New | +$3.73M |
|
|
XIFR
4937
XPLR Infrastructure LP
XIFR
$1.08B
| $3.47M | ﹤0.01% |
326,571
-503,137
| -61% | -$5.18M |
|
4938
PUT
Vital Farms
VITL
$498M
| $3.47M | ﹤0.01% |
245,600
+69,600
| +40% | +$1.64M |
|
4939
PUT
MarketAxess Holdings
MKTX
$5.72B
| $3.46M | ﹤0.01% |
21,000
-16,100
| -43% | -$2.82M |
|
4940
Embecta
EMBC
$290M
| $3.46M | ﹤0.01% |
391,819
+171,122
| +78% | +$1.78M |
|
4941
PUT
Packaging Corp of America
PKG
$22.8B
| $3.46M | ﹤0.01% |
16,300
+8,000
| +96% | +$1.78M |
|
4942
Miller Industries
MLR
$643M
| $3.46M | ﹤0.01% |
75,930
-5,388
| -7% | -$230K |
|
4943
PUT
Acadia Healthcare
ACHC
$2.95B
| $3.46M | ﹤0.01% |
147,800
+112,700
| +321% | +$2.04M |
|
4944
First Hawaiian
FHB
$3.36B
| $3.46M | ﹤0.01% |
140,265
-38,964
| -22% | -$1M |
|
4945
CALL
Lantheus
LNTH
$6.57B
| $3.45M | ﹤0.01% |
45,500
-5,600
| -11% | -$402K |
|
4946
Avis
CAR
$4.93B
| $3.45M | ﹤0.01% |
23,659
-183,265
| -89% | -$20.9M |
|
4947
Nordic American Tanker
NAT
$1.4B
| $3.45M | ﹤0.01% |
588,525
+445,884
| +313% | +$2.11M |
|
4948
CALL
Viper Energy
VNOM
$15.2B
| $3.44M | ﹤0.01% |
73,300
+22,784
| +45% | +$977K |
|
4949
PUT
MACOM Technology Solutions
MTSI
$23.5B
| $3.44M | ﹤0.01% |
15,500
+8,900
| +135% | +$1.99M |
|
4950
Gran Tierra Energy
GTE
$331M
| $3.44M | ﹤0.01% |
383,731
+144,996
| +61% | +$919K |
|
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.