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 | |
|---|---|---|---|---|---|---|
4426
PUT
State Street Blackstone Senior Loan ETF
SRLN
$5.37B
| $4.63M | ﹤0.01% |
115,400
+109,700
| +1,925% | +$4.45M |
|
|
PXED
4427
Phoenix Education Partners
PXED
$983M
| $4.63M | ﹤0.01% |
147,167
-31,266
| -18% | -$933K |
|
4428
CALL
Genmab
GMAB
$19.6B
| $4.63M | ﹤0.01% |
172,500
+145,600
| +541% | +$4.36M |
|
4429
Transportadora de Gas del Sur
TGS
$4.25B
| $4.61M | ﹤0.01% |
133,320
+22,924
| +21% | +$705K |
|
4430
CALL
Jazz Pharmaceuticals
JAZZ
$15.8B
| $4.61M | ﹤0.01% |
24,400
-100
| -0.4% | -$17.5K |
|
|
NVMI
4431
Nova
NVMI
$13.2B
| $4.61M | ﹤0.01% |
10,620
-21,426
| -67% | -$9.44M |
|
4432
ProShares UltraShort Bloomberg Crude Oil
SCO
$594M
| $4.61M | ﹤0.01% |
+138,482
| New | +$7.77M |
|
4433
CALL
Sensata Technologies
ST
$6.68B
| $4.6M | ﹤0.01% |
130,700
+45,300
| +53% | +$1.6M |
|
|
FITB
4434
PUT
Fifth Third Bancorp
FITB
$52.7B
| $4.6M | ﹤0.01% |
99,056
+39,656
| +67% | +$1.95M |
|
4435
CALL
Universal Health Services
UHS
$10.1B
| $4.6M | ﹤0.01% |
25,700
-26,600
| -51% | -$5.46M |
|
4436
PUT
GraniteShares 2x Long COIN Daily ETF
CONL
$402M
| $4.6M | ﹤0.01% |
656,900
+23,200
| +4% | +$241K |
|
4437
PUT
UL Solutions
ULS
$15.5B
| $4.59M | ﹤0.01% |
53,600
+44,400
| +483% | +$3.5M |
|
4438
PUT
Martin Marietta Materials
MLM
$33B
| $4.59M | ﹤0.01% |
7,800
+2,400
| +44% | +$1.53M |
|
|
SERV
4439
PUT
Serve Robotics
SERV
$424M
| $4.59M | ﹤0.01% |
544,000
+198,300
| +57% | +$2.14M |
|
4440
PUT
Cognyte Software
CGNT
$672M
| $4.59M | ﹤0.01% |
566,300
+523,800
| +1,232% | +$4.32M |
|
4441
Coca-Cola Femsa
KOF
$22.8B
| $4.58M | ﹤0.01% |
47,001
+18,169
| +63% | +$1.88M |
|
4442
UGI
UGI
$7.58B
| $4.58M | ﹤0.01% |
125,884
-323,294
| -72% | -$12.2M |
|
4443
CALL
ArcelorMittal
MT
$55.6B
| $4.58M | ﹤0.01% |
88,200
-25,800
| -23% | -$1.43M |
|
4444
CALL
iShares MSCI USA Momentum Factor ETF
MTUM
$26.1B
| $4.58M | ﹤0.01% |
19,100
-5,900
| -24% | -$1.48M |
|
4445
Bank of Marin Bancorp
BMRC
$457M
| $4.58M | ﹤0.01% |
178,753
+115,915
| +184% | +$3.01M |
|
4446
Vipshop
VIPS
$6.79B
| $4.58M | ﹤0.01% |
291,416
+129,706
| +80% | +$2.21M |
|
4447
Ternium
TX
$10.6B
| $4.58M | ﹤0.01% |
114,072
+61,959
| +119% | +$2.57M |
|
4448
Arrow Electronics
ARW
$10.8B
| $4.58M | ﹤0.01% |
31,930
-38,341
| -55% | -$5.26M |
|
|
BOW
4449
Bowhead Specialty Holdings
BOW
$1.1B
| $4.58M | ﹤0.01% |
204,016
+62,535
| +44% | +$1.52M |
|
|
SPRB
4450
Spruce Biosciences
SPRB
$146M
| $4.57M | ﹤0.01% |
69,999
| – | – |
|
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.