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 | |
|---|---|---|---|---|---|---|
4326
Solid Power
SLDP
$536M
| $4.92M | ﹤0.01% |
1,638,675
+1,311,774
| +401% | +$5.29M |
|
|
MASI
4327
CALL
DELISTED
Masimo
MASI
| $4.91M | ﹤0.01% |
27,600
+22,500
| +441% | +$3.53M |
|
4328
PUT
Fluence Energy
FLNC
$2.33B
| $4.9M | ﹤0.01% |
356,000
-237,100
| -40% | -$4.76M |
|
4329
CALL
Camtek
CAMT
$8.02B
| $4.9M | ﹤0.01% |
32,300
-74,900
| -70% | -$11.4M |
|
4330
Janux Therapeutics
JANX
$994M
| $4.9M | ﹤0.01% |
352,177
-751,967
| -68% | -$10.3M |
|
4331
CALL
Omega Healthcare
OHI
$14.1B
| $4.89M | ﹤0.01% |
111,600
-31,200
| -22% | -$1.42M |
|
4332
PUT
Fiverr
FVRR
$314M
| $4.89M | ﹤0.01% |
487,700
+129,000
| +36% | +$1.77M |
|
4333
BancFirst
BANF
$3.86B
| $4.88M | ﹤0.01% |
45,022
-25,858
| -36% | -$2.87M |
|
4334
CALL
Krystal Biotech
KRYS
$9.94B
| $4.88M | ﹤0.01% |
18,900
+200
| +1% | +$53.2K |
|
4335
CALL
Charles River Laboratories
CRL
$13.7B
| $4.88M | ﹤0.01% |
28,300
+5,400
| +24% | +$1M |
|
4336
Roundhill Generative AI & Technology ETF
CHAT
$1.98B
| $4.88M | ﹤0.01% |
78,894
-43,456
| -36% | -$2.72M |
|
4337
CALL
Huntington Bancshares
HBAN
$36.3B
| $4.88M | ﹤0.01% |
311,794
-54,026
| -15% | -$923K |
|
4338
CALL
Sigma Lithium
SGML
$1.28B
| $4.88M | ﹤0.01% |
395,400
+120,400
| +44% | +$1.54M |
|
4339
V2X
VVX
$2.59B
| $4.88M | ﹤0.01% |
71,196
-553,724
| -89% | -$37.4M |
|
4340
Direxion Daily GOOGL Bull 2X ETF
GGLL
$937M
| $4.88M | ﹤0.01% |
62,468
+58,529
| +1,486% | +$5.63M |
|
4341
Woodside Energy
WDS
$44.9B
| $4.87M | ﹤0.01% |
204,144
+74,657
| +58% | +$1.45M |
|
|
LITX
4342
PUT
Tradr 2X Long LITE Daily ETF
LITX
$301M
| $4.87M | ﹤0.01% |
+166,600
| New | +$4.39M |
|
4343
PUT
BBVA Argentina
BBAR
$3.12B
| $4.87M | ﹤0.01% |
303,400
+136,700
| +82% | +$2.27M |
|
|
ONT
4344
Onterris Inc
ONT
$563M
| $4.87M | ﹤0.01% |
222,587
+49,833
| +29% | +$1.2M |
|
4345
PUT
Unusual Machines
UMAC
$1.51B
| $4.87M | ﹤0.01% |
392,700
+85,100
| +28% | +$1.3M |
|
4346
CALL
Regal Rexnord
RRX
$11.6B
| $4.87M | ﹤0.01% |
26,000
-42,400
| -62% | -$7.88M |
|
|
SCCR
4347
Schwab Core Bond ETF
SCCR
$1.74B
| $4.87M | ﹤0.01% |
189,216
+147,050
| +349% | +$3.8M |
|
4348
PUT
Murphy Oil
MUR
$4.99B
| $4.86M | ﹤0.01% |
117,900
-67,100
| -36% | -$2.27M |
|
4349
PUT
Expeditors International
EXPD
$24.5B
| $4.86M | ﹤0.01% |
33,900
+22,300
| +192% | +$3.39M |
|
|
FETH
4350
CALL
Fidelity Ethereum Fund
FETH
$1.03B
| $4.85M | ﹤0.01% |
232,500
+70,400
| +43% | +$1.68M |
|
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.