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 | |
|---|---|---|---|---|---|---|
|
JAN
1551
Janus Living Inc
JAN
$6.28B
| $40.3M | 0.01% |
+1,707,795
| New | +$40M |
|
1552
PUT
BioNTech
BNTX
$23.3B
| $40.2M | 0.01% |
452,715
+302,615
| +202% | +$31.1M |
|
1553
Eaton
ETN
$176B
| $40.2M | 0.01% |
112,279
-346,348
| -76% | -$123M |
|
1554
PUT
Monolithic Power Systems
MPWR
$67B
| $40.1M | 0.01% |
36,700
-27,100
| -42% | -$29.6M |
|
|
EQPT
1555
EquipmentShare.com Inc
EQPT
$5.22B
| $39.8M | 0.01% |
+1,956,159
| New | +$55.9M |
|
1556
CALL
Coca-Cola Europacific Partners
CCEP
$47.3B
| $39.8M | 0.01% |
439,200
-155,200
| -26% | -$14.9M |
|
1557
Oscar Health
OSCR
$9.5B
| $39.8M | 0.01% |
3,466,362
+888,339
| +34% | +$12.5M |
|
1558
NRG Energy
NRG
$25.4B
| $39.6M | 0.01% |
271,154
-565,211
| -68% | -$88.9M |
|
1559
CALL
Planet Labs
PL
$8.82B
| $39.6M | 0.01% |
1,417,700
-81,200
| -5% | -$2.08M |
|
1560
CALL
Royal Gold
RGLD
$19.1B
| $39.6M | 0.01% |
155,688
+76,692
| +97% | +$20.4M |
|
1561
CALL
Sony
SONY
$138B
| $39.6M | 0.01% |
1,913,300
+1,459,400
| +322% | +$32.7M |
|
1562
PUT
TransDigm Group
TDG
$68.3B
| $39.5M | 0.01% |
34,100
+19,100
| +127% | +$25M |
|
1563
CALL
US Bancorp
USB
$101B
| $39.5M | 0.01% |
759,400
+382,100
| +101% | +$21M |
|
1564
Home BancShares
HOMB
$6.23B
| $39.4M | 0.01% |
1,464,057
+800,458
| +121% | +$22.5M |
|
1565
Flywire
FLYW
$2.12B
| $39.4M | 0.01% |
3,386,283
-743,026
| -18% | -$9.35M |
|
1566
Skyworks Solutions
SWKS
$10.5B
| $39.3M | 0.01% |
734,629
+434,649
| +145% | +$25.3M |
|
1567
Frontline
FRO
$9.02B
| $39.3M | 0.01% |
1,128,346
-985,409
| -47% | -$30.1M |
|
1568
CALL
Deckers Outdoor
DECK
$12.7B
| $39.3M | 0.01% |
392,700
-422,400
| -52% | -$45.3M |
|
1569
Texas Capital Bancshares
TCBI
$4.38B
| $39.2M | 0.01% |
413,098
-36,310
| -8% | -$3.54M |
|
1570
Solventum
SOLV
$14.5B
| $39.1M | 0.01% |
599,078
+486,233
| +431% | +$36.1M |
|
1571
Roper Technologies
ROP
$39.1B
| $39.1M | 0.01% |
110,512
-36,596
| -25% | -$13.5M |
|
1572
PUT
Moody's
MCO
$82.8B
| $39.1M | 0.01% |
89,600
+77,800
| +659% | +$36.8M |
|
1573
PUT
Ford
F
$55.4B
| $39.1M | 0.01% |
3,386,500
-2,233,600
| -40% | -$29.4M |
|
1574
CALL
Grab
GRAB
$15.1B
| $39.1M | 0.01% |
10,670,000
+1,533,700
| +17% | +$6.51M |
|
|
DOCU
1575
DocuSign
DOCU
$11.1B
| $39M | 0.01% |
821,819
+403,325
| +96% | +$20.6M |
|
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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.