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 | |
|---|---|---|---|---|---|---|
2451
CALL
Axsome Therapeutics
AXSM
$11.2B
| $17.7M | ﹤0.01% |
104,500
-71,500
| -41% | -$12.4M |
|
2452
CALL
Sunrun
RUN
$2.45B
| $17.7M | ﹤0.01% |
1,302,300
-1,597,800
| -55% | -$26.6M |
|
2453
Whirlpool
WHR
$2.7B
| $17.7M | ﹤0.01% |
327,371
+298,514
| +1,034% | +$21.9M |
|
2454
NewMarket
NEU
$8.85B
| $17.6M | ﹤0.01% |
+27,525
| New | +$17.8M |
|
2455
PUT
Conagra Brands
CAG
$7.5B
| $17.6M | ﹤0.01% |
1,120,700
+661,600
| +144% | +$11.7M |
|
|
PONY
2456
Pony AI Inc
PONY
$3.54B
| $17.6M | ﹤0.01% |
1,864,902
-742,972
| -28% | -$10.2M |
|
2457
HF Sinclair
DINO
$16.7B
| $17.6M | ﹤0.01% |
281,845
-1,824,390
| -87% | -$98.8M |
|
2458
PUT
Pultegroup
PHM
$24.8B
| $17.5M | ﹤0.01% |
149,200
-8,800
| -6% | -$1.13M |
|
2459
Lumen
LUMN
$6.93B
| $17.5M | ﹤0.01% |
2,524,313
+1,128,229
| +81% | +$8.54M |
|
2460
PUT
iShares National Muni Bond ETF
MUB
$45.8B
| $17.5M | ﹤0.01% |
165,200
+125,000
| +311% | +$13.4M |
|
2461
PUT
Lucid Motors
LCID
$2.45B
| $17.5M | ﹤0.01% |
1,836,780
-422,680
| -19% | -$4.39M |
|
|
GTM
2462
ZoomInfo Technologies
GTM
$1.18B
| $17.5M | ﹤0.01% |
2,926,199
+760,772
| +35% | +$5.59M |
|
2463
PUT
Oneok
OKE
$59.9B
| $17.5M | ﹤0.01% |
193,500
-181,360
| -48% | -$14.9M |
|
2464
Digital Realty Trust
DLR
$74.1B
| $17.5M | ﹤0.01% |
96,980
-197,580
| -67% | -$33.8M |
|
2465
PUT
Toll Brothers
TOL
$13.9B
| $17.5M | ﹤0.01% |
128,000
-141,500
| -53% | -$20.8M |
|
2466
PUT
ProShares UltraShort S&P500
SDS
$366M
| $17.4M | ﹤0.01% |
231,820
-147,100
| -39% | -$10.2M |
|
2467
Vanguard Real Estate ETF
VNQ
$39.2B
| $17.4M | ﹤0.01% |
196,543
+186,541
| +1,865% | +$17.1M |
|
2468
Select Water Solutions
WTTR
$2.69B
| $17.4M | ﹤0.01% |
1,138,857
+950,371
| +504% | +$12.4M |
|
|
BULL
2469
CALL
Webull Corp
BULL
$4.28B
| $17.4M | ﹤0.01% |
3,626,800
-836,400
| -19% | -$5.42M |
|
2470
Bitdeer Technologies
BTDR
$2.48B
| $17.4M | ﹤0.01% |
2,010,932
+108,989
| +6% | +$1.15M |
|
2471
PUT
iShares US Technology ETF
IYW
$25.6B
| $17.3M | ﹤0.01% |
95,600
+92,000
| +2,556% | +$17.8M |
|
|
TERN
2472
PUT
DELISTED
Terns Pharmaceuticals
TERN
| $17.3M | ﹤0.01% |
328,700
+235,000
| +251% | +$9.65M |
|
2473
Vera Therapeutics
VERA
$2.28B
| $17.3M | ﹤0.01% |
429,761
-347,727
| -45% | -$15M |
|
2474
PUT
Progressive
PGR
$122B
| $17.3M | ﹤0.01% |
87,200
-146,000
| -63% | -$30.1M |
|
2475
Ferrari
RACE
$72.9B
| $17.3M | ﹤0.01% |
51,050
+11,932
| +31% | +$4.17M |
|
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.