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 | |
|---|---|---|---|---|---|---|
11501
Televisa
TV
$1.51B
| $175K | ﹤0.01% |
59,994
-1,469,773
| -96% | -$4.51M |
|
11502
Alpha Teknova
TKNO
$396M
| $175K | ﹤0.01% |
60,381
-7,972
| -12% | -$22.4K |
|
|
AUTL
11503
CALL
Autolus Therapeutics
AUTL
$591M
| $174K | ﹤0.01% |
126,400
+71,500
| +130% | +$109K |
|
|
GPMT
11504
Granite Point Mortgage Trust
GPMT
$58.8M
| $174K | ﹤0.01% |
119,869
-279,489
| -70% | -$538K |
|
11505
PUT
TETRA Technologies
TTI
$1.25B
| $174K | ﹤0.01% |
20,400
-37,200
| -65% | -$373K |
|
|
AGEN
11506
Agenus
AGEN
$315M
| $174K | ﹤0.01% |
52,004
-371,238
| -88% | -$1.23M |
|
|
NMAD
11507
Nomad Power Solutions
NMAD
$74.1M
| $174K | ﹤0.01% |
56,557
+42,464
| +301% | +$134K |
|
11508
CALL
Grocery Outlet
GO
$1.07B
| $173K | ﹤0.01% |
24,600
-23,800
| -49% | -$207K |
|
11509
CALL
Haleon
HLN
$43.2B
| $173K | ﹤0.01% |
17,300
+3,400
| +24% | +$35.4K |
|
|
STEW
11510
SRH Total Return Fund
STEW
$1.8B
| $173K | ﹤0.01% |
10,124
-3,932
| -28% | -$69.9K |
|
11511
WidePoint Corp
WYY
$115M
| $173K | ﹤0.01% |
34,665
-86,036
| -71% | -$475K |
|
11512
PUT
1-800-Flowers.com
FLWS
$261M
| $173K | ﹤0.01% |
56,800
+2,500
| +5% | +$9.36K |
|
11513
PUT
StealthGas
GASS
$343M
| $173K | ﹤0.01% |
+18,800
| New | +$159K |
|
11514
Noodles & Co
NDLS
$100M
| $172K | ﹤0.01% |
20,172
-10,205
| -34% | -$60.5K |
|
11515
CALL
Cadiz
CDZI
$295M
| $172K | ﹤0.01% |
35,100
+1,400
| +4% | +$7.65K |
|
11516
Summit State Bank
SSBI
$87.4M
| $172K | ﹤0.01% |
12,885
+1,257
| +11% | +$16.6K |
|
11517
CALL
Atlas Lithium Corp
ATLX
$92.9M
| $172K | ﹤0.01% |
39,500
+16,400
| +71% | +$82.3K |
|
|
OGI
11518
CALL
Organigram Holdings
OGI
$177M
| $171K | ﹤0.01% |
127,800
+6,200
| +5% | +$9.21K |
|
11519
CALL
Phreesia
PHR
$780M
| $171K | ﹤0.01% |
+20,400
| New | +$270K |
|
11520
Butterfly Network
BFLY
$2.36B
| $171K | ﹤0.01% |
42,308
-447,410
| -91% | -$1.73M |
|
11521
Elicio Therapeutics
ELTX
$82.7M
| $171K | ﹤0.01% |
+15,978
| New | +$154K |
|
|
USOY
11522
PUT
Defiance Oil Enhanced Options Income ETF
USOY
$61.2M
| $171K | ﹤0.01% |
+18,500
| New | +$135K |
|
11523
CALL
FNB Corp
FNB
$6.88B
| $171K | ﹤0.01% |
10,200
-3,100
| -23% | -$53.6K |
|
11524
PUT
Vertical Aerospace
EVTL
$107M
| $170K | ﹤0.01% |
77,100
+32,700
| +74% | +$149K |
|
|
GRFS
11525
Grifois
GRFS
$5.4B
| $170K | ﹤0.01% |
21,221
+7,878
| +59% | +$69.4K |
|
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.