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 | |
|---|---|---|---|---|---|---|
12476
CALL
BuzzFeed
BZFD
$95M
| $36.2K | ﹤0.01% |
59,500
-29,400
| -33% | -$24K |
|
12477
CALL
Getty Images
GETY
$133M
| $35.9K | ﹤0.01% |
45,300
-8,600
| -16% | -$8.67K |
|
12478
ZK International Group
ZKIN
$60.8M
| $35.7K | ﹤0.01% |
23,164
-19,593
| -46% | -$31.3K |
|
12479
PUT
Microvision
MVIS
$89.7M
| $35.5K | ﹤0.01% |
3,693
-7,854
| -68% | -$89.9K |
|
|
DDL
12480
CALL
Dingdong
DDL
$512M
| $35.5K | ﹤0.01% |
13,800
+2,600
| +23% | +$7.23K |
|
|
12481
Getty Images
GETY
$133M
| $35.2K | ﹤0.01% |
44,383
-371,934
| -89% | -$375K |
|
12482
CALL
Wipro
WIT
$19.4B
| $35.2K | ﹤0.01% |
+16,600
| New | +$40.4K |
|
12483
CALL
IZEA Worldwide
IZEA
$53.8M
| $35.1K | ﹤0.01% |
+10,000
| New | +$37.4K |
|
|
NAAS
12484
NaaS Technology Inc
NAAS
$58.7M
| $35.1K | ﹤0.01% |
14,431
+900
| +7% | +$2.35K |
|
12485
PUT
Immunic
IMUX
$226M
| $34.7K | ﹤0.01% |
3,130
-920
| -23% | -$8.24K |
|
12486
Socket Mobile
SCKT
$11.2M
| $34.3K | ﹤0.01% |
39,439
-13,991
| -26% | -$14.4K |
|
|
KNDI
12487
CALL
Kandi Technologies Group
KNDI
$64.4M
| $34.3K | ﹤0.01% |
+41,000
| New | +$40K |
|
|
HUYA
12488
PUT
Huya Inc
HUYA
$538M
| $34K | ﹤0.01% |
+10,300
| New | +$38K |
|
12489
PUT
Comtech Telecommunications
CMTL
$52.7M
| $33.5K | ﹤0.01% |
10,100
-8,300
| -45% | -$42.7K |
|
12490
PUT
Century Casinos
CNTY
$35.2M
| $33.5K | ﹤0.01% |
24,100
+4,100
| +21% | +$6.23K |
|
12491
PUT
Solana Company
HSDT
$105M
| $33.4K | ﹤0.01% |
19,300
+2,100
| +12% | +$5.1K |
|
|
BDN
12492
CALL
Brandywine Realty Trust
BDN
$542M
| $33.3K | ﹤0.01% |
12,300
-2,800
| -19% | -$8.38K |
|
12493
PUT
AmpliTech
AMPG
$152M
| $33.3K | ﹤0.01% |
+17,500
| New | +$51.7K |
|
12494
CALL
Magnachip Semiconductor
MX
$137M
| $33K | ﹤0.01% |
11,800
-800
| -6% | -$2.28K |
|
12495
PUT
Blink Charging
BLNK
$87.1M
| $32.9K | ﹤0.01% |
58,100
-152,400
| -72% | -$107K |
|
12496
CALL
Clarus
CLAR
$145M
| $32.9K | ﹤0.01% |
+12,100
| New | +$39.7K |
|
12497
PUT
Fate Therapeutics
FATE
$294M
| $32.8K | ﹤0.01% |
27,300
-5,900
| -18% | -$7.18K |
|
12498
CALL
NanoViricides
NNVC
$34.7M
| $32.7K | ﹤0.01% |
35,900
+10,700
| +42% | +$11.2K |
|
12499
LivePerson
LPSN
$35.9M
| $32.7K | ﹤0.01% |
+12,834
| New | +$39.1K |
|
12500
Rocky Mountain Chocolate Factory
RMCF
$15.6M
| $32.7K | ﹤0.01% |
+14,531
| New | +$34.1K |
|
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.