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 | |
|---|---|---|---|---|---|---|
5476
PUT
Twist Bioscience
TWST
$7.86B
| $2.63M | ﹤0.01% |
55,400
+23,200
| +72% | +$1.04M |
|
5477
CALL
iShares Russell 3000 ETF
IWV
$20.6B
| $2.63M | ﹤0.01% |
7,100
+2,100
| +42% | +$812K |
|
|
IDYN
5478
iShares International Equity Factor Rotation Active ETF
IDYN
$111M
| $2.63M | ﹤0.01% |
91,236
-365,922
| -80% | -$10.9M |
|
5479
Angel Oak Income ETF
CARY
$1.39B
| $2.63M | ﹤0.01% |
+126,442
| New | +$2.65M |
|
5480
First Trust Nasdaq Bank ETF
FTXO
$321M
| $2.63M | ﹤0.01% |
72,593
+47,439
| +189% | +$1.79M |
|
5481
CALL
iShares Russell Mid-Cap ETF
IWR
$58.3B
| $2.63M | ﹤0.01% |
27,000
-7,900
| -23% | -$789K |
|
5482
PUT
SiTime
SITM
$20.7B
| $2.62M | ﹤0.01% |
7,600
-19,500
| -72% | -$7.17M |
|
5483
PUT
Wave Life Sciences
WVE
$1.02B
| $2.62M | ﹤0.01% |
362,000
-430,300
| -54% | -$5.61M |
|
|
ALMS
5484
PUT
Alumis Inc
ALMS
$3.11B
| $2.62M | ﹤0.01% |
119,100
+97,600
| +454% | +$2.44M |
|
|
SBR
5485
Sabine Royalty Trust
SBR
$1.06B
| $2.62M | ﹤0.01% |
34,795
-4,092
| -11% | -$292K |
|
|
CRESY
5486
Cresud
CRESY
$752M
| $2.62M | ﹤0.01% |
206,025
+30,068
| +17% | +$365K |
|
5487
PUT
Structure Therapeutics
GPCR
$3.89B
| $2.62M | ﹤0.01% |
54,300
-500
| -0.9% | -$34.2K |
|
|
TIGR
5488
PUT
UP Fintech Holding
TIGR
$833M
| $2.62M | ﹤0.01% |
415,200
-335,000
| -45% | -$2.73M |
|
5489
PUT
IDEAYA Biosciences
IDYA
$3.53B
| $2.62M | ﹤0.01% |
78,500
+59,600
| +315% | +$2M |
|
5490
Calvert US Large-Cap Diversity, Equity and Inclusion Index ETF
CDEI
$19M
| $2.61M | ﹤0.01% |
+33,694
| New | +$2.74M |
|
5491
PUT
Blackstone Mortgage Trust
BXMT
$2.44B
| $2.61M | ﹤0.01% |
136,400
-234,400
| -63% | -$4.52M |
|
5492
PUT
Alpha Pro Tech
APT
$55.7M
| $2.61M | ﹤0.01% |
588,200
+495,000
| +531% | +$2.43M |
|
5493
CALL
Teladoc Health
TDOC
$1.26B
| $2.61M | ﹤0.01% |
479,000
-290,400
| -38% | -$1.63M |
|
|
LADR
5494
Ladder Capital
LADR
$1.27B
| $2.61M | ﹤0.01% |
267,157
-100,529
| -27% | -$1.06M |
|
5495
CALL
ProShares UltraShort S&P500
SDS
$365M
| $2.61M | ﹤0.01% |
34,680
-58,720
| -63% | -$4.08M |
|
5496
CALL
Equity Residential
EQR
$24.7B
| $2.61M | ﹤0.01% |
44,100
+27,100
| +159% | +$1.67M |
|
|
SW
5497
CALL
Smurfit Westrock
SW
$26.2B
| $2.61M | ﹤0.01% |
65,400
-17,400
| -21% | -$750K |
|
5498
Vanguard Total Corporate Bond ETF
VTC
$1.71B
| $2.6M | ﹤0.01% |
33,882
+27,149
| +403% | +$2.11M |
|
5499
Adicet Bio
ACET
$77.3M
| $2.6M | ﹤0.01% |
381,823
+274,009
| +254% | +$2.05M |
|
5500
Core Laboratories
CLB
$569M
| $2.6M | ﹤0.01% |
154,800
+117,867
| +319% | +$2.11M |
|
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.