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 | |
|---|---|---|---|---|---|---|
2476
PUT
Eos Energy Enterprises
EOSE
$1.46B
| $17.3M | ﹤0.01% |
3,482,400
-2,574,000
| -43% | -$27.7M |
|
2477
CAE Inc
CAE
$8.43B
| $17.3M | ﹤0.01% |
662,899
+417,129
| +170% | +$12.6M |
|
2478
CALL
Sphere Entertainment
SPHR
$6.03B
| $17.3M | ﹤0.01% |
147,000
-337,900
| -70% | -$35.4M |
|
2479
CALL
e.l.f. Beauty
ELF
$5.4B
| $17.3M | ﹤0.01% |
284,700
-304,600
| -52% | -$24.8M |
|
2480
Unusual Machines
UMAC
$1.7B
| $17.2M | ﹤0.01% |
+1,390,698
| New | +$21.2M |
|
2481
Fortive
FTV
$18.6B
| $17.2M | ﹤0.01% |
311,866
-693,651
| -69% | -$38.9M |
|
2482
CALL
iShares MSCI Global Silver and Metals Miners ETF
SLVP
$968M
| $17.2M | ﹤0.01% |
485,000
+404,400
| +502% | +$16.2M |
|
2483
CALL
2x Bitcoin ETF
BITX
$849M
| $17.2M | ﹤0.01% |
1,165,400
+275,000
| +31% | +$5.61M |
|
2484
PUT
ProShares Ultra Bloomberg Natural Gas
BOIL
$397M
| $17.2M | ﹤0.01% |
532,740
+155,200
| +41% | +$6.2M |
|
2485
CALL
Capricor Therapeutics
CAPR
$386M
| $17.1M | ﹤0.01% |
564,100
+87,300
| +18% | +$2.33M |
|
2486
CALL
Williams-Sonoma
WSM
$28.4B
| $17.1M | ﹤0.01% |
94,000
-32,700
| -26% | -$6.53M |
|
|
TXNM
2487
TXNM Energy Inc
TXNM
$5.91B
| $17.1M | ﹤0.01% |
292,991
-1,132,587
| -79% | -$66.7M |
|
2488
PUT
Royal Bank of Canada
RY
$301B
| $17.1M | ﹤0.01% |
105,700
+28,400
| +37% | +$4.75M |
|
2489
PUT
Stride
LRN
$3.46B
| $17.1M | ﹤0.01% |
193,800
-8,800
| -4% | -$714K |
|
2490
Brookfield Asset Management
BAM
$86.7B
| $17.1M | ﹤0.01% |
384,389
-2,890,601
| -88% | -$141M |
|
|
NUVL
2491
DELISTED
Nuvalent
NUVL
| $17.1M | ﹤0.01% |
166,773
-28,383
| -15% | -$2.89M |
|
2492
Coupang
CPNG
$29B
| $17.1M | ﹤0.01% |
+904,682
| New | +$17.7M |
|
2493
Wolfspeed
WOLF
$1.65B
| $17.1M | ﹤0.01% |
1,044,862
+642,096
| +159% | +$11.6M |
|
|
SUNC
2494
SunocoCorp LLC
SUNC
$3.93B
| $17M | ﹤0.01% |
276,210
-130,019
| -32% | -$7.39M |
|
2495
CALL
Lucid Motors
LCID
$2.45B
| $17M | ﹤0.01% |
1,786,360
-650,590
| -27% | -$6.76M |
|
2496
Tenaris
TS
$27B
| $17M | ﹤0.01% |
292,423
-639,973
| -69% | -$31.5M |
|
2497
PUT
Biogen
BIIB
$31B
| $17M | ﹤0.01% |
92,700
-69,300
| -43% | -$12.8M |
|
2498
Direxion Daily 20+ Year Treasury Bull 3X ETF
TMF
$2.12B
| $17M | ﹤0.01% |
471,166
+340,886
| +262% | +$13M |
|
2499
CALL
Steel Dynamics
STLD
$36.7B
| $17M | ﹤0.01% |
94,300
-88,700
| -48% | -$16.1M |
|
|
FITB
2500
CALL
Fifth Third Bancorp
FITB
$52.7B
| $17M | ﹤0.01% |
365,168
+174,168
| +91% | +$8.58M |
|
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.