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 | |
|---|---|---|---|---|---|---|
551
CALL
CVS Health
CVS
$121B
| $159M | 0.03% |
2,218,400
-1,342,600
| -38% | -$103M |
|
552
Canadian National Railway
CNI
$76.4B
| $159M | 0.03% |
1,549,725
+1,265,858
| +446% | +$131M |
|
553
iShares Russell 2000 ETF
IWM
$82.2B
| $159M | 0.03% |
641,228
-326,776
| -34% | -$84.3M |
|
554
Crown Castle
CCI
$31.5B
| $159M | 0.03% |
1,954,484
+1,754,897
| +879% | +$151M |
|
555
CALL
Datadog
DDOG
$86.5B
| $159M | 0.03% |
1,343,600
-807,300
| -38% | -$99.7M |
|
556
First Horizon
FHN
$12.3B
| $158M | 0.03% |
6,937,961
+599,504
| +9% | +$14.3M |
|
557
PUT
Amphenol
APH
$210B
| $157M | 0.03% |
1,246,000
+722,700
| +138% | +$102M |
|
558
S&P Global
SPGI
$121B
| $157M | 0.03% |
370,113
+277,092
| +298% | +$129M |
|
559
CALL
Altria Group
MO
$107B
| $157M | 0.03% |
2,382,200
+788,700
| +49% | +$50.7M |
|
560
Tapestry
TPR
$31.1B
| $157M | 0.03% |
1,111,133
+688,849
| +163% | +$97.6M |
|
561
PUT
ConocoPhillips
COP
$153B
| $156M | 0.03% |
1,184,325
+158,575
| +15% | +$17.6M |
|
562
CALL
Global X Silver Miners ETF NEW
SIL
$4.89B
| $156M | 0.03% |
1,729,700
+1,313,700
| +316% | +$129M |
|
563
Glaukos
GKOS
$11B
| $156M | 0.03% |
1,446,926
+1,419,970
| +5,268% | +$160M |
|
564
Tyler Technologies
TYL
$13B
| $155M | 0.03% |
454,103
+400,790
| +752% | +$149M |
|
565
CALL
AutoZone
AZO
$49.7B
| $155M | 0.03% |
45,900
-500
| -1% | -$1.79M |
|
566
Uber
UBER
$154B
| $155M | 0.03% |
2,151,637
-301,564
| -12% | -$23.2M |
|
567
Toll Brothers
TOL
$13.9B
| $155M | 0.03% |
1,132,636
+78,082
| +7% | +$11.5M |
|
568
Suncor Energy
SU
$74.7B
| $155M | 0.03% |
2,337,994
+501,707
| +27% | +$27.7M |
|
569
CALL
Dow Inc
DOW
$22.1B
| $154M | 0.03% |
3,709,300
-1,328,100
| -26% | -$42.1M |
|
570
Xenon Pharmaceuticals
XENE
$6.31B
| $154M | 0.02% |
2,652,990
+1,331,777
| +101% | +$61.4M |
|
571
CALL
Unity
U
$19.6B
| $154M | 0.02% |
7,020,200
+953,300
| +16% | +$26.4M |
|
572
Restaurant Brands International
QSR
$26.1B
| $154M | 0.02% |
2,077,208
+888,962
| +75% | +$62.4M |
|
573
IDEX
IEX
$17.7B
| $153M | 0.02% |
808,651
+253,830
| +46% | +$50.1M |
|
574
iShares Silver Trust
SLV
$31.8B
| $153M | 0.02% |
+2,245,001
| New | +$171M |
|
575
CALL
Chipotle Mexican Grill
CMG
$41.3B
| $153M | 0.02% |
4,766,900
-4,460,000
| -48% | -$165M |
|
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.