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 | |
|---|---|---|---|---|---|---|
2576
OneMain Financial
OMF
$7.56B
| $16.1M | ﹤0.01% |
300,386
-780,175
| -72% | -$46.3M |
|
2577
Joby Aviation
JOBY
$7.83B
| $16.1M | ﹤0.01% |
1,944,756
+1,379,817
| +244% | +$15.5M |
|
2578
Telephone and Data Systems
TDS
$4.05B
| $16M | ﹤0.01% |
380,798
-98,113
| -20% | -$4.31M |
|
2579
CoreCivic
CXW
$3.25B
| $16M | ﹤0.01% |
846,578
+578,017
| +215% | +$10.9M |
|
2580
TriMas Corp
TRS
$1.4B
| $16M | ﹤0.01% |
444,883
+347,904
| +359% | +$12.5M |
|
2581
Wave Life Sciences
WVE
$1.07B
| $16M | ﹤0.01% |
2,202,856
+1,412,892
| +179% | +$18.4M |
|
2582
PUT
McCormick & Company Non-Voting
MKC
$14.7B
| $16M | ﹤0.01% |
316,600
+204,000
| +181% | +$13M |
|
2583
Autoliv
ALV
$8.94B
| $16M | ﹤0.01% |
151,686
+123,403
| +436% | +$14.6M |
|
2584
CALL
Procore
PCOR
$9.09B
| $15.9M | ﹤0.01% |
279,800
-35,700
| -11% | -$2.11M |
|
2585
CALL
Toll Brothers
TOL
$13.9B
| $15.9M | ﹤0.01% |
116,800
-50,100
| -30% | -$7.36M |
|
2586
Vanguard Ultra-Short Bond ETF
VUSB
$9.34B
| $15.9M | ﹤0.01% |
+319,608
| New | +$15.9M |
|
2587
PUT
Stanley Black & Decker
SWK
$15.4B
| $15.9M | ﹤0.01% |
223,700
-232,400
| -51% | -$18.7M |
|
2588
PUT
Twilio
TWLO
$36.6B
| $15.9M | ﹤0.01% |
126,200
-338,700
| -73% | -$41.7M |
|
2589
CALL
OR Royalties Inc
OR
$6.25B
| $15.9M | ﹤0.01% |
417,200
-56,000
| -12% | -$2.3M |
|
2590
Mueller Industries
MLI
$14.6B
| $15.8M | ﹤0.01% |
285,800
+216,674
| +313% | +$13M |
|
2591
CALL
ProShares Ultra S&P500
SSO
$8.47B
| $15.8M | ﹤0.01% |
305,100
-153,400
| -33% | -$8.77M |
|
2592
10x Genomics
TXG
$7.31B
| $15.8M | ﹤0.01% |
743,734
+612,914
| +469% | +$12.3M |
|
2593
Oneok
OKE
$59.9B
| $15.8M | ﹤0.01% |
174,553
+23,238
| +15% | +$1.91M |
|
2594
Rocket Companies
RKT
$41.8B
| $15.7M | ﹤0.01% |
1,104,360
+209,452
| +23% | +$3.81M |
|
|
LINE
2595
Lineage Inc
LINE
$9.51B
| $15.7M | ﹤0.01% |
480,155
+449,503
| +1,466% | +$16.6M |
|
2596
CALL
Keysight
KEYS
$61.1B
| $15.7M | ﹤0.01% |
55,700
-12,800
| -19% | -$3.21M |
|
2597
PUT
WIX.com
WIX
$3.1B
| $15.7M | ﹤0.01% |
174,600
-22,000
| -11% | -$1.84M |
|
2598
BlackRock Flexible Income ETF
BINC
$16.3B
| $15.7M | ﹤0.01% |
+302,767
| New | +$16M |
|
2599
WillScot Mobile Mini Holdings
WSC
$4.31B
| $15.7M | ﹤0.01% |
905,417
-128,752
| -12% | -$2.63M |
|
2600
PUT
Transocean
RIG
$6.43B
| $15.7M | ﹤0.01% |
2,369,200
-1,367,400
| -37% | -$7.7M |
|
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.