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 | |
|---|---|---|---|---|---|---|
|
BRR
11376
PUT
ProCap Financial Inc
BRR
$155M
| $199K | ﹤0.01% |
94,500
+700
| +0.7% | +$1.94K |
|
|
CNTB
11377
Connect Biopharma Holdings
CNTB
$160M
| $199K | ﹤0.01% |
76,074
-23,419
| -24% | -$61K |
|
11378
PUT
Navigator Holdings
NVGS
$1.27B
| $199K | ﹤0.01% |
+10,300
| New | +$196K |
|
11379
PUT
KULR Technology Group
KULR
$137M
| $199K | ﹤0.01% |
84,000
-17,155
| -17% | -$53.3K |
|
11380
CALL
Prenetics Global
PRE
$331M
| $199K | ﹤0.01% |
10,300
+200
| +2% | +$3.72K |
|
|
NVOX
11381
CALL
Defiance Daily Target 2x Long NVO ETF
NVOX
$34.7M
| $199K | ﹤0.01% |
19,412
+5,044
| +35% | +$93.1K |
|
11382
PUT
Petco
WOOF
$817M
| $198K | ﹤0.01% |
71,400
-194,100
| -73% | -$537K |
|
11383
PUT
Theravance Biopharma
TBPH
$878M
| $198K | ﹤0.01% |
+12,200
| New | +$216K |
|
11384
CALL
NewtekOne
NEWT
$378M
| $197K | ﹤0.01% |
+18,000
| New | +$228K |
|
11385
Ooma
OOMA
$574M
| $197K | ﹤0.01% |
+13,534
| New | +$170K |
|
|
SI
11386
Shoulder Innovations Inc
SI
$400M
| $197K | ﹤0.01% |
13,524
-5,256
| -28% | -$73.1K |
|
|
ZKH
11387
ZKH Group
ZKH
$465M
| $196K | ﹤0.01% |
66,333
+38,437
| +138% | +$130K |
|
11388
Pixelworks
PXLW
$45.7M
| $196K | ﹤0.01% |
36,348
-16,209
| -31% | -$99.4K |
|
11389
Transact Technologies
TACT
$52.5M
| $196K | ﹤0.01% |
59,594
+35,961
| +152% | +$129K |
|
11390
PUT
Costamare
CMRE
$1.74B
| $196K | ﹤0.01% |
11,600
-79,300
| -87% | -$1.32M |
|
11391
PUT
DoubleVerify
DV
$2.04B
| $196K | ﹤0.01% |
20,600
-5,700
| -22% | -$58.3K |
|
11392
Vince Holding Corp
VNCE
$78.9M
| $196K | ﹤0.01% |
81,174
+71,055
| +702% | +$195K |
|
11393
CALL
Flowers Foods
FLO
$1.6B
| $196K | ﹤0.01% |
+24,000
| New | +$241K |
|
|
CTEV
11394
PUT
Claritev Corp
CTEV
$716M
| $194K | ﹤0.01% |
11,900
+6,400
| +116% | +$143K |
|
|
FRMM
11395
PUT
Forum Markets
FRMM
$82.4M
| $194K | ﹤0.01% |
67,210
-105,590
| -61% | -$403K |
|
11396
Spok Holdings
SPOK
$230M
| $194K | ﹤0.01% |
17,775
-31,917
| -64% | -$406K |
|
11397
PUT
Black Diamond Therapeutics
BDTX
$116M
| $194K | ﹤0.01% |
90,900
+38,500
| +73% | +$91.6K |
|
|
PLBL
11398
Polibeli Group
PLBL
$2.53B
| $193K | ﹤0.01% |
+21,958
| New | +$201K |
|
|
PTN
11399
Palatin Technologies
PTN
$17.8M
| $193K | ﹤0.01% |
+11,091
| New | +$211K |
|
|
SIFY
11400
CALL
Sify Technologies
SIFY
$1.15B
| $193K | ﹤0.01% |
15,100
-6,000
| -28% | -$86.4K |
|
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.