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 | |
|---|---|---|---|---|---|---|
6551
PUT
Wolfspeed
WOLF
$1.64B
| $1.59M | ﹤0.01% |
97,131
+2,045
| +2% | +$36.9K |
|
|
NEBX
6552
Tradr 2X Long NBIS Daily ETF
NEBX
$271M
| $1.58M | ﹤0.01% |
147,543
+24,372
| +20% | +$287K |
|
6553
Capital Group Municipal Income ETF
CGMU
$6.58B
| $1.58M | ﹤0.01% |
+58,266
| New | +$1.61M |
|
|
BEX
6554
PUT
Tradr 2X Long BE Daily ETF
BEX
$181M
| $1.58M | ﹤0.01% |
+95,200
| New | +$2.22M |
|
6555
Nomura Holdings
NMR
$29.1B
| $1.58M | ﹤0.01% |
200,231
-173,356
| -46% | -$1.49M |
|
|
SAFE
6556
Safehold
SAFE
$1.08B
| $1.58M | ﹤0.01% |
116,671
-143,287
| -55% | -$2.12M |
|
6557
CALL
Portland General Electric
POR
$5.73B
| $1.58M | ﹤0.01% |
29,900
+800
| +3% | +$41.1K |
|
6558
PUT
Affiliated Managers Group
AMG
$9.6B
| $1.58M | ﹤0.01% |
+5,700
| New | +$1.72M |
|
6559
CALL
Biohaven
BHVN
$2.18B
| $1.58M | ﹤0.01% |
186,400
-85,800
| -32% | -$939K |
|
6560
PUT
Teekay Tankers
TNK
$2.76B
| $1.58M | ﹤0.01% |
21,500
+4,100
| +24% | +$274K |
|
6561
PUT
XP
XP
$8B
| $1.57M | ﹤0.01% |
82,700
-118,700
| -59% | -$2.29M |
|
6562
Clearwater Paper
CLW
$361M
| $1.57M | ﹤0.01% |
109,461
-20,794
| -16% | -$339K |
|
6563
CALL
ProShares Ultra Bitcoin ETF
BITU
$341M
| $1.57M | ﹤0.01% |
135,200
+68,300
| +102% | +$1.1M |
|
6564
Invesco BulletShares 2033 Corporate Bond ETF
BSCX
$1.03B
| $1.57M | ﹤0.01% |
74,391
+53,397
| +254% | +$1.14M |
|
6565
California Water Service
CWT
$3.08B
| $1.57M | ﹤0.01% |
34,698
-138,032
| -80% | -$6.19M |
|
6566
DocGo
DCGO
$64.1M
| $1.57M | ﹤0.01% |
2,500,000
| – | – |
|
6567
CALL
Immunome
IMNM
$3.08B
| $1.57M | ﹤0.01% |
71,900
-19,900
| -22% | -$443K |
|
6568
State Street SPDR MSCI Emerging Markets Fossil Fuel Reserves Free ETF
EEMX
$176M
| $1.57M | ﹤0.01% |
+35,578
| New | +$1.63M |
|
|
PLTY
6569
YieldMax PLTR Option Income Strategy ETF
PLTY
$391M
| $1.57M | ﹤0.01% |
+40,714
| New | +$1.73M |
|
6570
CALL
Harmony Biosciences
HRMY
$2.28B
| $1.57M | ﹤0.01% |
56,100
-4,400
| -7% | -$144K |
|
6571
CALL
HealthEquity
HQY
$8.72B
| $1.57M | ﹤0.01% |
18,800
-300
| -2% | -$24.6K |
|
6572
Strive Inc
ASST
$1.06B
| $1.57M | ﹤0.01% |
+156,642
| New | +$1.95M |
|
6573
Alto Ingredients
ALTO
$320M
| $1.57M | ﹤0.01% |
324,286
+133,864
| +70% | +$425K |
|
|
AIFC
6574
AI Financial Corp
AIFC
$58.1M
| $1.57M | ﹤0.01% |
1,413,849
-94,043
| -6% | -$153K |
|
6575
InfuSystem Holdings
INFU
$242M
| $1.57M | ﹤0.01% |
169,954
+100,238
| +144% | +$875K |
|
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.