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 | |
|---|---|---|---|---|---|---|
3251
PUT
First Citizens BancShares
FCNCA
$25.9B
| $9.8M | ﹤0.01% |
5,200
-3,200
| -38% | -$6.42M |
|
3252
Avantis Emerging Markets ex-China Equity ETF
AVXC
$408M
| $9.79M | ﹤0.01% |
144,729
+98,341
| +212% | +$6.83M |
|
|
MZYX.U
3253
MOZAYYX Acquisition Corp Units
MZYX.U
| $9.79M | ﹤0.01% |
+983,593
| New | +$9.79M |
|
3254
CALL
iShares US Real Estate ETF
IYR
$4.59B
| $9.79M | ﹤0.01% |
103,500
-240,000
| -70% | -$23.3M |
|
3255
PUT
Mobileye
MBLY
$7.58B
| $9.78M | ﹤0.01% |
1,423,100
-338,900
| -19% | -$3.07M |
|
3256
CALL
Tenet Healthcare
THC
$21.6B
| $9.76M | ﹤0.01% |
51,700
-60,500
| -54% | -$12.7M |
|
3257
Domino's
DPZ
$11.5B
| $9.75M | ﹤0.01% |
27,175
-252,386
| -90% | -$99.6M |
|
|
GMOI
3258
GMO International Value ETF
GMOI
$567M
| $9.74M | ﹤0.01% |
+268,920
| New | +$9.67M |
|
3259
CALL
Global X Cybersecurity ETF
BUG
$1.53B
| $9.73M | ﹤0.01% |
387,400
+353,200
| +1,033% | +$9.7M |
|
3260
Mercury Insurance
MCY
$5.84B
| $9.73M | ﹤0.01% |
110,326
+64,129
| +139% | +$5.74M |
|
3261
PUT
Penumbra
PEN
$12.9B
| $9.72M | ﹤0.01% |
29,600
+24,900
| +530% | +$8.43M |
|
3262
PUT
Black Hills Corp
BKH
$5.66B
| $9.72M | ﹤0.01% |
140,000
+128,800
| +1,150% | +$9.27M |
|
3263
Dropbox
DBX
$7.48B
| $9.72M | ﹤0.01% |
427,686
+98,083
| +30% | +$2.49M |
|
3264
PUT
Invesco KBW Bank ETF
KBWB
$6.87B
| $9.72M | ﹤0.01% |
122,800
+59,600
| +94% | +$4.98M |
|
3265
CALL
POET Technologies
POET
$1.65B
| $9.71M | ﹤0.01% |
1,635,100
-181,000
| -10% | -$1.17M |
|
3266
Laureate Education
LAUR
$5.18B
| $9.71M | ﹤0.01% |
278,694
-1,070,176
| -79% | -$36.6M |
|
3267
PUT
Baxter International
BAX
$13.8B
| $9.71M | ﹤0.01% |
577,800
+44,300
| +8% | +$857K |
|
3268
BioCryst Pharmaceuticals
BCRX
$2.49B
| $9.7M | ﹤0.01% |
1,018,743
-280,159
| -22% | -$2.18M |
|
3269
CALL
Chemours
CC
$2.39B
| $9.68M | ﹤0.01% |
439,400
+97,900
| +29% | +$1.7M |
|
3270
PIMCO Ultra Short Government Active ETF
BILZ
$1.03B
| $9.68M | ﹤0.01% |
95,846
+89,245
| +1,352% | +$9M |
|
3271
Sprinklr
CXM
$1.61B
| $9.68M | ﹤0.01% |
1,612,881
+1,294,721
| +407% | +$8.03M |
|
3272
Frontdoor
FTDR
$5.96B
| $9.66M | ﹤0.01% |
182,816
+119,657
| +189% | +$7.14M |
|
3273
CALL
Onto Innovation
ONTO
$20.3B
| $9.64M | ﹤0.01% |
47,000
+23,400
| +99% | +$4.79M |
|
3274
AMERISAFE
AMSF
$513M
| $9.64M | ﹤0.01% |
289,082
+162,786
| +129% | +$5.87M |
|
3275
Bank of Montreal
BMO
$130B
| $9.63M | ﹤0.01% |
71,165
+59,828
| +528% | +$8.31M |
|
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.