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 | |
|---|---|---|---|---|---|---|
3301
CALL
Fluence Energy
FLNC
$2.43B
| $9.46M | ﹤0.01% |
687,200
-444,200
| -39% | -$8.91M |
|
3302
Nabors Industries
NBR
$1.39B
| $9.45M | ﹤0.01% |
109,821
+55,028
| +100% | +$3.99M |
|
3303
Synaptics
SYNA
$4.25B
| $9.45M | ﹤0.01% |
134,913
-683,672
| -84% | -$55.5M |
|
3304
Star Bulk Carriers
SBLK
$3.24B
| $9.45M | ﹤0.01% |
+411,249
| New | +$9.36M |
|
3305
PUT
Old Dominion Freight Line
ODFL
$43.7B
| $9.44M | ﹤0.01% |
48,300
+18,700
| +63% | +$3.49M |
|
3306
FIVE9
FIVN
$2.47B
| $9.42M | ﹤0.01% |
620,744
+391,795
| +171% | +$6.81M |
|
3307
PUT
Zeta Global
ZETA
$7.29B
| $9.41M | ﹤0.01% |
591,100
-456,100
| -44% | -$8.44M |
|
3308
CALL
Public Storage
PSA
$60.9B
| $9.4M | ﹤0.01% |
34,700
+18,900
| +120% | +$5.42M |
|
3309
CALL
Sanmina
SANM
$11.3B
| $9.4M | ﹤0.01% |
72,500
+26,200
| +57% | +$3.85M |
|
3310
PUT
Breakwave Tanker Shipping ETF
BWET
$55M
| $9.4M | ﹤0.01% |
+95,400
| New | +$5.01M |
|
3311
Algonquin Power & Utilities
AQN
$4.53B
| $9.39M | ﹤0.01% |
1,528,619
-781,608
| -34% | -$5.07M |
|
3312
iShares MSCI Emerging Markets ETF
EEM
$30.5B
| $9.37M | ﹤0.01% |
165,000
-4,062,402
| -96% | -$239M |
|
3313
Herc Holdings
HRI
$5.8B
| $9.36M | ﹤0.01% |
94,067
-281,411
| -75% | -$40.2M |
|
3314
Legend Biotech
LEGN
$3.95B
| $9.35M | ﹤0.01% |
516,980
+338,940
| +190% | +$6.46M |
|
3315
CALL
Bath & Body Works
BBWI
$3.91B
| $9.35M | ﹤0.01% |
500,800
-49,000
| -9% | -$1.06M |
|
|
NNE
3316
CALL
Nano Nuclear Energy
NNE
$1.06B
| $9.35M | ﹤0.01% |
456,500
-302,200
| -40% | -$8.25M |
|
3317
PUT
Kenvue
KVUE
$36.9B
| $9.33M | ﹤0.01% |
541,400
-1,373,300
| -72% | -$24.5M |
|
3318
Alphatec Holdings
ATEC
$1.51B
| $9.33M | ﹤0.01% |
857,339
-480,226
| -36% | -$6.99M |
|
3319
AGCO
AGCO
$7.1B
| $9.31M | ﹤0.01% |
80,386
+41,699
| +108% | +$5.05M |
|
3320
OFG Bancorp
OFG
$2.28B
| $9.31M | ﹤0.01% |
230,111
+142,362
| +162% | +$5.76M |
|
3321
PUT
ATI
ATI
$31.1B
| $9.29M | ﹤0.01% |
63,900
-70,800
| -53% | -$9.86M |
|
3322
OceanFirst Financial
OCFC
$1.91B
| $9.28M | ﹤0.01% |
514,309
+461,915
| +882% | +$8.5M |
|
3323
Neogen
NEOG
$2.54B
| $9.28M | ﹤0.01% |
998,604
-996,744
| -50% | -$9.81M |
|
3324
Dorman Products
DORM
$4.05B
| $9.27M | ﹤0.01% |
+88,835
| New | +$10.6M |
|
3325
Vanguard Long-Term Corporate Bond ETF
VCLT
$8.74B
| $9.27M | ﹤0.01% |
123,997
-69,737
| -36% | -$5.3M |
|
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.