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 | |
|---|---|---|---|---|---|---|
|
BULL
1801
Webull Corp
BULL
$4.28B
| $31.2M | 0.01% |
6,496,910
+304,275
| +5% | +$1.97M |
|
1802
PUT
Herbalife
HLF
$1.29B
| $31.2M | 0.01% |
2,118,400
-97,200
| -4% | -$1.59M |
|
1803
AES
AES
$10.5B
| $31.2M | 0.01% |
2,212,787
-4,861,161
| -69% | -$72.4M |
|
1804
OGE Energy
OGE
$9.74B
| $31.1M | 0.01% |
649,268
-590,500
| -48% | -$27M |
|
1805
NOV
NOV
$7.55B
| $31.1M | 0.01% |
1,654,965
+1,286,434
| +349% | +$24.2M |
|
1806
CSX Corp
CSX
$93.9B
| $31.1M | 0.01% |
758,301
-1,519,168
| -67% | -$59.5M |
|
1807
CALL
Nextpower Inc
NXT
$15.9B
| $31.1M | 0.01% |
258,100
-436,908
| -63% | -$48.4M |
|
1808
Aaon
AAON
$7.22B
| $31.1M | 0.01% |
375,367
-16,551
| -4% | -$1.5M |
|
1809
CALL
Antero Resources
AR
$11.5B
| $31.1M | 0.01% |
731,800
-874,900
| -54% | -$31.9M |
|
1810
CALL
AXT Inc
AXTI
$5.45B
| $31.1M | 0.01% |
545,000
+371,400
| +214% | +$12.3M |
|
1811
PUT
Direxion Daily S&P Biotech Bull 3X ETF
LABU
$604M
| $31M | 0.01% |
186,800
+22,235
| +14% | +$3.65M |
|
1812
Hycroft Mining Holding Corp
HYMC
$2.61B
| $31M | 0.01% |
880,858
+805,635
| +1,071% | +$31.2M |
|
1813
CALL
Xcel Energy
XEL
$49.3B
| $31M | 0.01% |
390,100
-157,200
| -29% | -$12.3M |
|
1814
PUT
Upstart Holdings
UPST
$3.01B
| $30.9M | 0.01% |
1,206,600
-423,100
| -26% | -$14.9M |
|
1815
Valvoline
VVV
$4.32B
| $30.9M | 0.01% |
918,618
-1,632,153
| -64% | -$56.4M |
|
1816
Cedar Fair
FUN
$1.7B
| $30.9M | 0.01% |
+1,741,478
| New | +$29.4M |
|
1817
Blue Owl Capital
OWL
$19.3B
| $30.9M | 0.01% |
3,384,248
+2,185,079
| +182% | +$26.4M |
|
1818
Estee Lauder
EL
$31.4B
| $30.9M | 0.01% |
429,965
-446,296
| -51% | -$45.6M |
|
1819
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.6B
| $30.7M | 0.01% |
281,739
+236,739
| +526% | +$27.7M |
|
1820
Oric Pharmaceuticals
ORIC
$1.4B
| $30.7M | 0.01% |
2,422,741
-11,969
| -0.5% | -$136K |
|
1821
PUT
Lithia Motors
LAD
$8.29B
| $30.7M | 0.01% |
122,900
+108,200
| +736% | +$32.1M |
|
1822
Harley-Davidson
HOG
$2.91B
| $30.6M | 0.01% |
1,514,429
-439,575
| -22% | -$8.62M |
|
1823
Alaska Air
ALK
$5.29B
| $30.6M | ﹤0.01% |
831,666
-1,696,968
| -67% | -$81.8M |
|
1824
Motorola Solutions
MSI
$76.7B
| $30.6M | ﹤0.01% |
70,422
-57,217
| -45% | -$24.8M |
|
1825
PUT
Howmet Aerospace
HWM
$113B
| $30.5M | ﹤0.01% |
132,500
-139,100
| -51% | -$32.4M |
|
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.