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 | |
|---|---|---|---|---|---|---|
3226
CALL
Cogent Communications
CCOI
$579M
| $9.97M | ﹤0.01% |
529,000
+374,900
| +243% | +$8.26M |
|
3227
PUT
Eldorado Gold
EGO
$10.4B
| $9.96M | ﹤0.01% |
290,100
+14,300
| +5% | +$583K |
|
3228
PUT
Zimmer Biomet
ZBH
$19.2B
| $9.95M | ﹤0.01% |
110,000
-26,200
| -19% | -$2.4M |
|
|
GAP
3229
PUT
The Gap Inc
GAP
$7.42B
| $9.93M | ﹤0.01% |
410,200
-350,300
| -46% | -$9.27M |
|
3230
CALL
WEC Energy
WEC
$36B
| $9.92M | ﹤0.01% |
85,700
+58,100
| +211% | +$6.53M |
|
3231
PUT
Becton Dickinson
BDX
$50B
| $9.92M | ﹤0.01% |
63,100
-30,300
| -32% | -$5.56M |
|
3232
Direxion Daily S&P 500 Bear 1X ETF
SPDN
$198M
| $9.91M | ﹤0.01% |
996,482
-195,022
| -16% | -$1.86M |
|
3233
Sotera Health
SHC
$5.39B
| $9.91M | ﹤0.01% |
691,387
+86,543
| +14% | +$1.44M |
|
3234
Fulcrum Therapeutics
FULC
$285M
| $9.91M | ﹤0.01% |
1,292,486
+85,482
| +7% | +$793K |
|
3235
CALL
Leidos
LDOS
$18B
| $9.89M | ﹤0.01% |
63,600
+3,000
| +5% | +$539K |
|
3236
PUT
Idexx Laboratories
IDXX
$43.4B
| $9.89M | ﹤0.01% |
17,600
-18,100
| -51% | -$11.6M |
|
3237
Kymera Therapeutics
KYMR
$9.76B
| $9.88M | ﹤0.01% |
118,597
-41,268
| -26% | -$3.27M |
|
3238
CALL
Range Resources
RRC
$9.42B
| $9.87M | ﹤0.01% |
218,500
+89,500
| +69% | +$3.49M |
|
3239
Belden
BDC
$5.31B
| $9.86M | ﹤0.01% |
85,882
+12,625
| +17% | +$1.59M |
|
|
FLOC
3240
Flowco Holdings
FLOC
$1.04B
| $9.86M | ﹤0.01% |
478,414
+466,180
| +3,811% | +$10.1M |
|
3241
Martin Marietta Materials
MLM
$32.9B
| $9.85M | ﹤0.01% |
16,730
-72,204
| -81% | -$46.1M |
|
3242
Victory Capital Holdings
VCTR
$7.27B
| $9.85M | ﹤0.01% |
150,389
+146,072
| +3,384% | +$10.2M |
|
3243
CALL
Teck Resources
TECK
$31.2B
| $9.84M | ﹤0.01% |
190,100
-584,400
| -75% | -$31.3M |
|
3244
CALL
Canadian Pacific Kansas City
CP
$82.2B
| $9.82M | ﹤0.01% |
124,900
-44,900
| -26% | -$3.55M |
|
3245
MGM Resorts International
MGM
$11.1B
| $9.82M | ﹤0.01% |
265,453
-289,347
| -52% | -$10.3M |
|
3246
PUT
Noble Corp
NE
$7.2B
| $9.82M | ﹤0.01% |
200,200
-256,200
| -56% | -$10.5M |
|
3247
PUT
Dominion Energy
D
$60.5B
| $9.82M | ﹤0.01% |
158,900
-274,000
| -63% | -$16.9M |
|
|
GLIBK
3248
Liberty Capital Corp Series C GCI Group Common Stock
GLIBK
$1.07B
| $9.82M | ﹤0.01% |
263,832
-80,493
| -23% | -$3.04M |
|
3249
iShares MSCI ACWI ETF
ACWI
$33.6B
| $9.81M | ﹤0.01% |
+70,882
| New | +$10.2M |
|
3250
PUT
Sprott Uranium Miners ETF
URNM
$2B
| $9.81M | ﹤0.01% |
155,300
+78,400
| +102% | +$5.36M |
|
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.