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 | |
|---|---|---|---|---|---|---|
3451
Aclaris Therapeutics
ACRS
$851M
| $8.43M | ﹤0.01% |
2,249,319
+1,044,038
| +87% | +$3.52M |
|
3452
PUT
iShares MSCI Germany ETF
EWG
$1.68B
| $8.43M | ﹤0.01% |
212,600
+107,400
| +102% | +$4.55M |
|
3453
Direxion Daily Small Cap Bear 3x ETF
TZA
$207M
| $8.43M | ﹤0.01% |
120,083
+73,776
| +159% | +$4.8M |
|
3454
CALL
Logitech
LOGI
$14.8B
| $8.43M | ﹤0.01% |
92,500
+65,500
| +243% | +$6.03M |
|
3455
DTE Energy
DTE
$29.3B
| $8.42M | ﹤0.01% |
57,613
-122,008
| -68% | -$17.2M |
|
3456
PUT
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$534M
| $8.42M | ﹤0.01% |
42,300
-15,100
| -26% | -$3.9M |
|
|
VIA
3457
Via Transportation Inc
VIA
$2.13B
| $8.42M | ﹤0.01% |
561,382
+311,382
| +125% | +$6.21M |
|
3458
PUT
Fidelity National Information Services
FIS
$22.1B
| $8.42M | ﹤0.01% |
179,500
-81,100
| -31% | -$4.36M |
|
3459
PUT
IAMGOLD
IAG
$10.4B
| $8.42M | ﹤0.01% |
447,400
+118,000
| +36% | +$2.34M |
|
|
AMRZ
3460
CALL
Amrize Ltd
AMRZ
$25.5B
| $8.42M | ﹤0.01% |
150,300
+100,000
| +199% | +$5.73M |
|
3461
CALL
Corcept Therapeutics
CORT
$12.4B
| $8.41M | ﹤0.01% |
208,700
+106,100
| +103% | +$3.97M |
|
|
AVGX
3462
CALL
Defiance Daily Target 2X Long AVGO ETF
AVGX
$178M
| $8.4M | ﹤0.01% |
240,000
+166,500
| +227% | +$6.82M |
|
|
MLPI
3463
NEOS MLP & Energy Infrastructure High Income ETF
MLPI
$889M
| $8.4M | ﹤0.01% |
148,269
+138,361
| +1,396% | +$7.45M |
|
3464
PUT
Enterprise Products Partners
EPD
$84B
| $8.39M | ﹤0.01% |
221,600
-515,200
| -70% | -$18.2M |
|
3465
iShares Russell Top 200 ETF
IWL
$2.29B
| $8.38M | ﹤0.01% |
52,205
+46,321
| +787% | +$7.81M |
|
3466
Riley Exploration Permian
REPX
$800M
| $8.38M | ﹤0.01% |
229,782
+205,513
| +847% | +$6.12M |
|
3467
Summit Therapeutics
SMMT
$10.6B
| $8.38M | ﹤0.01% |
441,743
-2,033,965
| -82% | -$32.9M |
|
3468
Sun Life Financial
SLF
$45.1B
| $8.36M | ﹤0.01% |
133,635
+16,055
| +14% | +$1.03M |
|
3469
Ecovyst
ECVT
$1.14B
| $8.36M | ﹤0.01% |
649,778
+620,991
| +2,157% | +$7.01M |
|
|
KEEL
3470
CALL
Keel Infrastructure Corp
KEEL
$2.17B
| $8.35M | ﹤0.01% |
4,284,400
-1,969,000
| -31% | -$4.63M |
|
3471
ProShares Ultra QQQ
QLD
$14.5B
| $8.35M | ﹤0.01% |
136,916
-431,860
| -76% | -$29.5M |
|
3472
PUT
CSX Corp
CSX
$92.9B
| $8.35M | ﹤0.01% |
203,400
-188,800
| -48% | -$7.4M |
|
|
LAR
3473
Lithium Argentina AG
LAR
$1.12B
| $8.34M | ﹤0.01% |
+1,249,179
| New | +$8.94M |
|
3474
ASE Group
ASX
$103B
| $8.34M | ﹤0.01% |
+384,573
| New | +$8.09M |
|
3475
CALL
SK Telecom
SKM
$14.8B
| $8.34M | ﹤0.01% |
+284,600
| New | +$7.85M |
|
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.