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 | |
|---|---|---|---|---|---|---|
2226
TransAlta
TAC
$4.05B
| $21.4M | ﹤0.01% |
1,632,890
-394,518
| -19% | -$5.08M |
|
2227
Robert Half
RHI
$4.42B
| $21.4M | ﹤0.01% |
841,943
+443,502
| +111% | +$11.7M |
|
2228
International Paper
IP
$21.6B
| $21.4M | ﹤0.01% |
598,574
-680,432
| -53% | -$28.3M |
|
2229
PUT
Texas Pacific Land
TPL
$24.7B
| $21.4M | ﹤0.01% |
45,000
+2,400
| +6% | +$1.03M |
|
2230
Mercury Systems
MRCY
$6.67B
| $21.4M | ﹤0.01% |
292,866
+188,490
| +181% | +$16.4M |
|
2231
CALL
DaVita
DVA
$11.5B
| $21.3M | ﹤0.01% |
138,900
+10,900
| +9% | +$1.48M |
|
2232
Planet Fitness
PLNT
$3.8B
| $21.3M | ﹤0.01% |
286,911
-1,421,172
| -83% | -$125M |
|
|
NESR
2233
National Energy Services Reunited Corp
NESR
$3.66B
| $21.3M | ﹤0.01% |
992,540
-1,505,168
| -60% | -$31.4M |
|
2234
IPG Photonics
IPGP
$3.65B
| $21.3M | ﹤0.01% |
185,773
+14,585
| +9% | +$1.58M |
|
|
NVMI
2235
CALL
Nova
NVMI
$13.3B
| $21.3M | ﹤0.01% |
49,000
+13,300
| +37% | +$5.86M |
|
2236
Qiagen
QGEN
$8.87B
| $21.3M | ﹤0.01% |
531,381
+99,133
| +23% | +$4.69M |
|
|
BLSH
2237
CALL
Bullish
BLSH
$3.7B
| $21.3M | ﹤0.01% |
595,100
+219,100
| +58% | +$7.68M |
|
2238
CALL
Crown Castle
CCI
$32.3B
| $21.2M | ﹤0.01% |
261,000
-117,400
| -31% | -$10.1M |
|
2239
Banco Bradesco
BBD
$34.2B
| $21.2M | ﹤0.01% |
5,808,901
+1,493,110
| +35% | +$5.66M |
|
2240
Church & Dwight Co
CHD
$24B
| $21.2M | ﹤0.01% |
227,174
-83,068
| -27% | -$7.99M |
|
2241
Kadant
KAI
$3.95B
| $21.2M | ﹤0.01% |
72,504
+66,452
| +1,098% | +$21.4M |
|
2242
PUT
Carrier Global
CARR
$51.8B
| $21.2M | ﹤0.01% |
376,400
-176,400
| -32% | -$10.4M |
|
2243
Mondelez International
MDLZ
$81.2B
| $21.2M | ﹤0.01% |
367,646
-1,655,058
| -82% | -$95.9M |
|
|
Q
2244
Qnity Electronics Inc
Q
$29.8B
| $21.1M | ﹤0.01% |
183,200
-521,694
| -74% | -$55.4M |
|
2245
VanEck Junior Gold Miners ETF
GDXJ
$8.49B
| $21.1M | ﹤0.01% |
+175,874
| New | +$23M |
|
2246
CALL
Transocean
RIG
$6.43B
| $21.1M | ﹤0.01% |
3,182,700
+1,365,700
| +75% | +$7.69M |
|
2247
Fulton Financial
FULT
$4.72B
| $21.1M | ﹤0.01% |
1,036,656
+716,868
| +224% | +$14.8M |
|
2248
CALL
AGNC Investment
AGNC
$13B
| $21.1M | ﹤0.01% |
2,101,000
+802,300
| +62% | +$8.87M |
|
2249
CALL
Factset
FDS
$10.1B
| $21.1M | ﹤0.01% |
97,100
+18,700
| +24% | +$4.36M |
|
2250
CALL
Iron Mountain
IRM
$38.5B
| $21.1M | ﹤0.01% |
206,200
+28,300
| +16% | +$2.82M |
|
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.