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 | |
|---|---|---|---|---|---|---|
1301
PBF Energy
PBF
$8.81B
| $52.8M | 0.01% |
1,108,328
-233,052
| -17% | -$8.73M |
|
1302
Ares Capital
ARCC
$14.5B
| $52.6M | 0.01% |
2,917,662
-5,159,501
| -64% | -$99.9M |
|
1303
PUT
Vanguard Morningstar Growth ETF
VUG
$231B
| $52.5M | 0.01% |
721,800
+409,200
| +131% | +$31.8M |
|
1304
McCormick & Company Non-Voting
MKC
$14.6B
| $52.5M | 0.01% |
1,041,613
-1,126,600
| -52% | -$71.8M |
|
1305
Occidental Petroleum
OXY
$57.7B
| $52.5M | 0.01% |
807,929
-1,790,581
| -69% | -$90.1M |
|
1306
Rocket Lab Corp
RKLB
$51.2B
| $52.4M | 0.01% |
816,681
-62,955
| -7% | -$4.75M |
|
1307
Tetra Tech
TTEK
$9.33B
| $52.4M | 0.01% |
1,740,911
+1,690,318
| +3,341% | +$59.7M |
|
1308
ADMA Biologics
ADMA
$2.11B
| $52.4M | 0.01% |
5,810,642
+4,288,072
| +282% | +$67.7M |
|
1309
CALL
Vanguard Morningstar Mega Cap Growth ETF
MGK
$34B
| $52.3M | 0.01% |
711,500
+648,500
| +1,029% | +$50.9M |
|
1310
PUT
Etsy
ETSY
$7.4B
| $52.2M | 0.01% |
1,044,000
-139,000
| -12% | -$7.6M |
|
|
ABVX
1311
CALL
Abivax
ABVX
$10.6B
| $52.2M | 0.01% |
468,400
+149,100
| +47% | +$17.6M |
|
1312
AXIS Capital
AXS
$7.3B
| $52M | 0.01% |
512,585
+132,533
| +35% | +$13.6M |
|
1313
Microchip Technology
MCHP
$42.2B
| $52M | 0.01% |
804,349
-3,635,599
| -82% | -$261M |
|
|
FIG
1314
CALL
Figma
FIG
$14B
| $51.9M | 0.01% |
2,455,000
+1,208,000
| +97% | +$33.1M |
|
|
BNY
1315
CALL
Bank of New York Mellon
BNY
$110B
| $51.8M | 0.01% |
436,900
+31,600
| +8% | +$3.76M |
|
1316
Ulta Beauty
ULTA
$22.2B
| $51.7M | 0.01% |
98,979
-8,735
| -8% | -$5.56M |
|
1317
PUT
Advanced Energy
AEIS
$13.2B
| $51.7M | 0.01% |
160,200
+151,100
| +1,660% | +$43.8M |
|
1318
BILL Holdings
BILL
$5.11B
| $51.7M | 0.01% |
1,349,297
-363,568
| -21% | -$16.3M |
|
|
MDLN
1319
CALL
Medline Inc
MDLN
$31.2B
| $51.7M | 0.01% |
1,160,900
+912,200
| +367% | +$40.3M |
|
1320
PUT
LyondellBasell Industries
LYB
$20.2B
| $51.6M | 0.01% |
640,300
+63,600
| +11% | +$3.77M |
|
1321
CALL
Dollar General
DG
$26.9B
| $51.4M | 0.01% |
432,900
-883,200
| -67% | -$126M |
|
1322
CALL
Cigna
CI
$73.5B
| $51.3M | 0.01% |
192,300
-53,100
| -22% | -$14.7M |
|
|
SGI
1323
Somnigroup International
SGI
$14B
| $51.2M | 0.01% |
692,884
+650,812
| +1,547% | +$56.5M |
|
1324
Kite Realty
KRG
$5.31B
| $51.1M | 0.01% |
2,081,841
-16,202
| -0.8% | -$399K |
|
1325
PUT
US Global Jets ETF
JETS
$832M
| $51M | 0.01% |
2,069,000
+1,698,200
| +458% | +$47M |
|
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.