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 | |
|---|---|---|---|---|---|---|
1051
Pool Corp
POOL
$7.29B
| $71.7M | 0.01% |
354,612
-328,667
| -48% | -$77.5M |
|
1052
Sanofi
SNY
$105B
| $71.7M | 0.01% |
1,487,970
+235,434
| +19% | +$11M |
|
1053
Guardant Health
GH
$21.4B
| $71.7M | 0.01% |
775,941
+211,599
| +37% | +$21.2M |
|
1054
Zscaler
ZS
$30.4B
| $71.7M | 0.01% |
510,857
+270,804
| +113% | +$48M |
|
1055
Goldman Sachs
GS
$304B
| $71.5M | 0.01% |
84,542
+17,714
| +27% | +$15.8M |
|
1056
Blackstone
BX
$112B
| $71.5M | 0.01% |
621,582
-1,319,814
| -68% | -$172M |
|
1057
PUT
Cipher Digital
CIFR
$6.9B
| $71.4M | 0.01% |
5,550,000
+745,100
| +16% | +$11.8M |
|
1058
Bank of Hawaii
BOH
$3.15B
| $71.4M | 0.01% |
961,442
+46,769
| +5% | +$3.48M |
|
1059
Texas Instruments
TXN
$250B
| $71.3M | 0.01% |
367,515
-21,220
| -5% | -$4.3M |
|
1060
PUT
State Street SPDR S&P Homebuilders ETF
XHB
$1.6B
| $71.3M | 0.01% |
722,400
-1,042,000
| -59% | -$114M |
|
1061
Louisiana-Pacific
LPX
$5.18B
| $71.1M | 0.01% |
977,766
+148,273
| +18% | +$12.5M |
|
1062
Silicon Laboratories
SLAB
$7.28B
| $71.1M | 0.01% |
341,500
+328,511
| +2,529% | +$60.2M |
|
|
MDLN
1063
Medline Inc
MDLN
$31.2B
| $70.9M | 0.01% |
1,593,358
-4,412,981
| -73% | -$195M |
|
1064
PUT
Tower Semiconductor
TSEM
$28.6B
| $70.8M | 0.01% |
403,600
+148,200
| +58% | +$19.9M |
|
|
AXON
1065
CALL
Axon Enterprise
AXON
$50B
| $70.8M | 0.01% |
166,700
-71,800
| -30% | -$37.3M |
|
1066
Ionis Pharmaceuticals
IONS
$9.28B
| $70.8M | 0.01% |
942,534
-1,192,102
| -56% | -$94.1M |
|
1067
CALL
Direxion Daily TSLA Bull 2X ETF
TSLL
$3.49B
| $70.7M | 0.01% |
5,815,800
-2,744,700
| -32% | -$42.8M |
|
1068
PUT
Union Pacific
UNP
$177B
| $70.6M | 0.01% |
290,900
+19,300
| +7% | +$4.73M |
|
1069
CALL
Parker-Hannifin
PH
$134B
| $70.5M | 0.01% |
78,800
+33,700
| +75% | +$31.9M |
|
1070
Yeti Holdings
YETI
$3.44B
| $70.4M | 0.01% |
1,924,748
-57,069
| -3% | -$2.51M |
|
1071
CALL
Ford
F
$55.4B
| $70.4M | 0.01% |
6,099,300
-48,300
| -0.8% | -$636K |
|
1072
CALL
iShares 7-10 Year Treasury Bond ETF
IEF
$47.3B
| $70.4M | 0.01% |
737,400
-172,500
| -19% | -$16.6M |
|
1073
PUT
Apollo Global Management
APO
$84.8B
| $70.3M | 0.01% |
631,300
-322,700
| -34% | -$40M |
|
1074
T. Rowe Price
TROW
$23.7B
| $70.3M | 0.01% |
779,695
+518,147
| +198% | +$50.2M |
|
1075
Fox Class A
FOXA
$27.5B
| $70.3M | 0.01% |
1,202,948
-1,976,697
| -62% | -$126M |
|
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.