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 | |
|---|---|---|---|---|---|---|
751
Cisco
CSCO
$445B
| $109M | 0.02% |
1,405,626
-3,759,229
| -73% | -$294M |
|
752
Indivior Pharmaceuticals
INDV
$4.52B
| $109M | 0.02% |
3,574,044
+512,142
| +17% | +$16.9M |
|
753
CALL
Southwest Airlines
LUV
$22.2B
| $109M | 0.02% |
2,895,000
+222,500
| +8% | +$10M |
|
754
CALL
Marathon Petroleum
MPC
$99.1B
| $109M | 0.02% |
445,200
+218,000
| +96% | +$44M |
|
755
PUT
Linde
LIN
$220B
| $108M | 0.02% |
218,000
-6,100
| -3% | -$2.88M |
|
756
CALL
Ondas Inc
ONDS
$5.1B
| $108M | 0.02% |
11,950,300
+5,606,700
| +88% | +$61M |
|
|
VSNT
757
Versant Media Group
VSNT
$5.33B
| $108M | 0.02% |
+2,912,784
| New | +$98.2M |
|
758
CALL
Ferrari
RACE
$72.1B
| $108M | 0.02% |
318,300
+90,500
| +40% | +$31.7M |
|
759
Popular Inc
BPOP
$11.3B
| $108M | 0.02% |
802,618
+58,959
| +8% | +$7.9M |
|
760
CALL
JD.com
JD
$39.4B
| $108M | 0.02% |
3,640,400
-1,710,400
| -32% | -$48.3M |
|
761
CALL
W.W. Grainger
GWW
$61.9B
| $108M | 0.02% |
98,600
+46,600
| +90% | +$50.9M |
|
762
Global E Online
GLBE
$6.98B
| $107M | 0.02% |
3,477,814
+751,691
| +28% | +$26.4M |
|
763
PUT
Humana
HUM
$46.2B
| $107M | 0.02% |
616,800
-38,000
| -6% | -$7.79M |
|
764
AbbVie
ABBV
$442B
| $107M | 0.02% |
490,285
-243,066
| -33% | -$53.9M |
|
765
PUT
Warner Bros
WBD
$69.7B
| $106M | 0.02% |
3,870,100
-475,000
| -11% | -$13.3M |
|
766
CALL
iShares MSCI EAFE Value ETF
EFV
$30.1B
| $106M | 0.02% |
1,428,500
+63,900
| +5% | +$4.8M |
|
767
CALL
Enterprise Products Partners
EPD
$82.2B
| $106M | 0.02% |
2,804,300
+489,900
| +21% | +$17.3M |
|
768
Accenture
ACN
$109B
| $105M | 0.02% |
530,185
+76,006
| +17% | +$17.7M |
|
769
Aflac
AFL
$60.8B
| $105M | 0.02% |
957,294
+709,999
| +287% | +$78.7M |
|
770
Elanco Animal Health
ELAN
$11.2B
| $105M | 0.02% |
4,387,127
+689,001
| +19% | +$16.8M |
|
771
PUT
Eaton
ETN
$177B
| $105M | 0.02% |
292,800
+42,000
| +17% | +$14.9M |
|
772
TransDigm Group
TDG
$68.6B
| $105M | 0.02% |
90,274
-78,744
| -47% | -$103M |
|
773
TechnipFMC
FTI
$29.8B
| $105M | 0.02% |
1,513,157
+1,271,640
| +527% | +$76.4M |
|
774
Cousins Properties
CUZ
$4.92B
| $105M | 0.02% |
4,634,371
+670,684
| +17% | +$16.3M |
|
775
Teradyne
TER
$65.4B
| $104M | 0.02% |
351,335
-1,424,440
| -80% | -$397M |
|
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.