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 | |
|---|---|---|---|---|---|---|
7501
ATN International
ATNI
$482M
| $1.05M | ﹤0.01% |
38,577
+22,109
| +134% | +$563K |
|
|
WCBR
7502
WisdomTree Cybersecurity Fund
WCBR
$121M
| $1.05M | ﹤0.01% |
42,071
+15,174
| +56% | +$396K |
|
7503
CALL
UMB Financial
UMBF
$11.2B
| $1.05M | ﹤0.01% |
+9,300
| New | +$1.12M |
|
|
BCTXL
7504
BriaCell Therapeutics Warrant
BCTXL
$2.44M
| $1.05M | ﹤0.01% |
+1,048,759
| New | +$1.11M |
|
7505
enGene Therapeutics
ENGN
$122M
| $1.05M | ﹤0.01% |
153,942
+128,559
| +506% | +$1.14M |
|
7506
Nature's Sunshine
NATR
$277M
| $1.05M | ﹤0.01% |
+43,665
| New | +$1.08M |
|
7507
CALL
Mattel
MAT
$4.29B
| $1.05M | ﹤0.01% |
72,000
-64,300
| -47% | -$1.17M |
|
7508
PUT
Direxion Daily Utilities Bull 3X ETF
UTSL
$37.9M
| $1.05M | ﹤0.01% |
21,500
+12,400
| +136% | +$573K |
|
7509
CALL
Sensient Technologies
SXT
$5.61B
| $1.05M | ﹤0.01% |
12,100
+800
| +7% | +$74.9K |
|
7510
Cheesecake Factory
CAKE
$5.63B
| $1.05M | ﹤0.01% |
19,100
-200,840
| -91% | -$12M |
|
7511
CALL
Pennant Group
PNTG
$1.33B
| $1.05M | ﹤0.01% |
+34,300
| New | +$1.06M |
|
7512
PUT
ProShares Short Bitcoin Strategy ETF
BITI
$120M
| $1.05M | ﹤0.01% |
39,200
-32,800
| -46% | -$833K |
|
7513
AB Core Plus Bond ETF
CPLS
$211M
| $1.04M | ﹤0.01% |
29,620
+18,443
| +165% | +$656K |
|
7514
PUT
Energizer
ENR
$1.53B
| $1.04M | ﹤0.01% |
63,600
+2,200
| +4% | +$44.5K |
|
7515
iShares Core 80/20 Aggressive Allocation ETF
AOA
$3.27B
| $1.04M | ﹤0.01% |
+11,801
| New | +$1.07M |
|
|
AVBH
7516
Avidbank Holdings
AVBH
$359M
| $1.04M | ﹤0.01% |
36,626
-22,946
| -39% | -$648K |
|
|
DLNV
7517
FT Vest U.S. Equity Dual Directional Buffer ETF - November
DLNV
$20.1M
| $1.04M | ﹤0.01% |
+34,185
| New | +$1.07M |
|
7518
Vuzix
VUZI
$220M
| $1.04M | ﹤0.01% |
451,718
+265,617
| +143% | +$725K |
|
7519
PUT
Asana
ASAN
$2.13B
| $1.04M | ﹤0.01% |
163,000
-138,100
| -46% | -$1.22M |
|
|
EUAD
7520
Select STOXX Europe Aerospace & Defense ETF
EUAD
$1.24B
| $1.04M | ﹤0.01% |
25,604
+514
| +2% | +$23.2K |
|
7521
Choiceone Financial
COFS
$511M
| $1.04M | ﹤0.01% |
37,094
-66,637
| -64% | -$1.91M |
|
|
MSB
7522
CALL
Mesabi Trust
MSB
$309M
| $1.04M | ﹤0.01% |
+33,100
| New | +$1.13M |
|
|
IBTP
7523
iShares iBonds Dec 2034 Term Treasury ETF
IBTP
$290M
| $1.04M | ﹤0.01% |
40,657
+11,834
| +41% | +$306K |
|
7524
CALL
Altimmune
ALT
$583M
| $1.04M | ﹤0.01% |
337,900
-85,300
| -20% | -$362K |
|
7525
PUT
HDFC Bank
HDB
$120B
| $1.04M | ﹤0.01% |
41,800
+12,900
| +45% | +$401K |
|
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.