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 | |
|---|---|---|---|---|---|---|
2376
Kinder Morgan
KMI
$73.1B
| $18.7M | ﹤0.01% |
557,324
-1,346,618
| -71% | -$42.1M |
|
2377
PUT
YPF Sociedad Anonima ADS
YPF
$19.6B
| $18.7M | ﹤0.01% |
404,300
-345,000
| -46% | -$13.1M |
|
2378
CALL
Snap
SNAP
$9.15B
| $18.7M | ﹤0.01% |
4,061,300
-3,829,300
| -49% | -$22.6M |
|
2379
CALL
Maplebear
CART
$11.3B
| $18.7M | ﹤0.01% |
498,700
-273,400
| -35% | -$10.4M |
|
2380
Columbia Sportswear
COLM
$2.94B
| $18.7M | ﹤0.01% |
340,828
-491,125
| -59% | -$28.2M |
|
2381
PUT
Ionis Pharmaceuticals
IONS
$9.51B
| $18.6M | ﹤0.01% |
248,300
+179,300
| +260% | +$14.2M |
|
2382
PUT
ARK Genomic Revolution ETF
ARKG
$1.74B
| $18.6M | ﹤0.01% |
705,600
-148,300
| -17% | -$4.34M |
|
2383
NXP Semiconductors
NXPI
$59.2B
| $18.6M | ﹤0.01% |
94,694
-145,755
| -61% | -$32.3M |
|
2384
CALL
Black Hills Corp
BKH
$5.66B
| $18.6M | ﹤0.01% |
268,100
+155,000
| +137% | +$11.2M |
|
2385
International Seaways
INSW
$4.81B
| $18.5M | ﹤0.01% |
254,071
+58,485
| +30% | +$3.74M |
|
2386
PUT
Nucor
NUE
$61B
| $18.5M | ﹤0.01% |
109,500
-226,800
| -67% | -$39.5M |
|
2387
iShares MSCI USA Quality Factor ETF
QUAL
$48.1B
| $18.5M | ﹤0.01% |
96,470
+54,081
| +128% | +$10.8M |
|
2388
Suzano
SUZ
$9.99B
| $18.5M | ﹤0.01% |
1,847,358
+1,828,682
| +9,792% | +$18.5M |
|
2389
CALL
SELLAS Life Sciences
SLS
$2.58B
| $18.5M | ﹤0.01% |
4,368,200
+2,474,600
| +131% | +$11.1M |
|
2390
PUT
MasTec
MTZ
$23.9B
| $18.5M | ﹤0.01% |
57,400
-43,900
| -43% | -$11.9M |
|
2391
Eastman Chemical
EMN
$8.47B
| $18.5M | ﹤0.01% |
241,755
-1,091,337
| -82% | -$78.7M |
|
2392
Unum
UNM
$14.8B
| $18.4M | ﹤0.01% |
252,591
+13,464
| +6% | +$1M |
|
2393
PUT
Rocket Companies
RKT
$41.8B
| $18.4M | ﹤0.01% |
1,293,996
-1,596,135
| -55% | -$29M |
|
2394
AeroVironment
AVAV
$9.76B
| $18.4M | ﹤0.01% |
100,640
-62,742
| -38% | -$16.5M |
|
2395
CALL
UiPath
PATH
$8.3B
| $18.4M | ﹤0.01% |
1,658,700
+259,500
| +19% | +$3.3M |
|
|
HTFL
2396
Heartflow Inc
HTFL
$3.66B
| $18.4M | ﹤0.01% |
756,605
-492,293
| -39% | -$13.4M |
|
2397
PUT
NRG Energy
NRG
$26.5B
| $18.4M | ﹤0.01% |
125,700
-136,800
| -52% | -$21.5M |
|
|
SUNB
2398
Sunbelt Rentals Holdings
SUNB
$34.8B
| $18.3M | ﹤0.01% |
+281,864
| New | +$19.8M |
|
2399
Sprott Physical Gold and Silver Trust
CEF
$7.81B
| $18.3M | ﹤0.01% |
384,376
+343,974
| +851% | +$17.6M |
|
2400
Blue Owl Capital
OBDC
$5.78B
| $18.3M | ﹤0.01% |
+1,658,410
| New | +$19.5M |
|
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.