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 | |
|---|---|---|---|---|---|---|
|
SDM
12601
DELISTED
Smart Digital Group
SDM
| $22.1K | ﹤0.01% |
15,939
| – | – |
|
12602
Fractyl Health
GUTS
$111M
| $22.1K | ﹤0.01% |
48,196
-180,789
| -79% | -$167K |
|
|
BGMS
12603
Bio Green Med Solution Inc
BGMS
$5.1M
| $22.1K | ﹤0.01% |
+22,051
| New | +$24.4K |
|
12604
PUT
Beam Global
BEEM
$25.5M
| $22.1K | ﹤0.01% |
+15,000
| New | +$23.6K |
|
12605
CALL
RLX Technology
RLX
$2.44B
| $22K | ﹤0.01% |
10,000
-21,700
| -68% | -$49.9K |
|
12606
HeartSciences Inc Warrant
HSCSW
| $22K | ﹤0.01% |
192,587
-2,972
| -2% | -$281 |
|
|
LGPS
12607
LogProstyle Inc
LGPS
$20.2M
| $21.7K | ﹤0.01% |
32,154
-20,652
| -39% | -$17.1K |
|
12608
SelectQuote
SLQT
$126M
| $21.6K | ﹤0.01% |
34,302
-257,120
| -88% | -$270K |
|
12609
CALL
Douglas Elliman
DOUG
$184M
| $21.5K | ﹤0.01% |
13,100
+1,500
| +13% | +$3.48K |
|
|
CHAI
12610
Core AI Holdings Inc
CHAI
$6.38M
| $21.3K | ﹤0.01% |
21,132
-25,435
| -55% | -$44.2K |
|
|
CIF
12611
DELISTED
MFS Intermediate High Income Fund
CIF
| $21.1K | ﹤0.01% |
13,043
-953
| -7% | -$1.61K |
|
12612
CALL
HF Foods Group
HFFG
$97.6M
| $21.1K | ﹤0.01% |
+11,400
| New | +$21.8K |
|
12613
Local Bounti
LOCL
$24.6M
| $20.9K | ﹤0.01% |
+18,011
| New | +$30.6K |
|
12614
PUT
BRC Inc
BRCC
$215M
| $20.6K | ﹤0.01% |
+26,600
| New | +$22.4K |
|
12615
PUT
LiveWire
LVWR
$256M
| $20.6K | ﹤0.01% |
12,400
-13,800
| -53% | -$30.7K |
|
12616
Borealis Foods
BRLS
$18.1M
| $20.5K | ﹤0.01% |
+14,446
| New | +$20.6K |
|
12617
Greenlane Holdings
GNLN
$1.19M
| $20.4K | ﹤0.01% |
+6,903
| New | +$57.2K |
|
12618
PUT
VistaGen Therapeutics
VTGN
$11.8M
| $20.4K | ﹤0.01% |
35,700
-429,400
| -92% | -$261K |
|
12619
BTCS Inc
BTCS
$54.3M
| $20.4K | ﹤0.01% |
+14,677
| New | +$30K |
|
12620
PUT
Valens Semiconductor
VLN
$210M
| $20.3K | ﹤0.01% |
18,000
+4,600
| +34% | +$7.22K |
|
12621
CALL
Standard BioTools
LAB
$312M
| $20.2K | ﹤0.01% |
22,000
+3,500
| +19% | +$4.24K |
|
|
PRHI
12622
Presurance Holdings
PRHI
$15.4M
| $20.1K | ﹤0.01% |
5,635
-1,578
| -22% | -$7.56K |
|
12623
PUT
Ocean Power Technologies
OPTT
$55.4M
| $20.1K | ﹤0.01% |
57,400
+1,000
| +2% | +$430 |
|
12624
CALL
SkinHealth Systems
SKIN
$84.2M
| $20K | ﹤0.01% |
22,500
+6,800
| +43% | +$8.35K |
|
12625
CALL
OmniAb
OABI
$497M
| $19.8K | ﹤0.01% |
12,600
-13,400
| -52% | -$24.2K |
|
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.