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 | |
|---|---|---|---|---|---|---|
2526
CALL
Bitdeer Technologies
BTDR
$2.48B
| $16.7M | ﹤0.01% |
1,927,100
+403,400
| +26% | +$4.24M |
|
2527
US Foods
USFD
$23.6B
| $16.7M | ﹤0.01% |
+180,678
| New | +$16M |
|
2528
CALL
Martin Marietta Materials
MLM
$32.9B
| $16.7M | ﹤0.01% |
28,300
+9,700
| +52% | +$6.19M |
|
2529
CALL
Five Below
FIVE
$13.5B
| $16.7M | ﹤0.01% |
72,900
-179,600
| -71% | -$37.6M |
|
2530
PUT
Alpha Metallurgical Resources
AMR
$2.11B
| $16.6M | ﹤0.01% |
81,100
-23,600
| -23% | -$4.78M |
|
2531
PUT
American Eagle Outfitters
AEO
$2.71B
| $16.6M | ﹤0.01% |
993,900
-890,800
| -47% | -$20M |
|
2532
NuScale Power
SMR
$3.85B
| $16.6M | ﹤0.01% |
1,531,072
-808,455
| -35% | -$12.3M |
|
2533
The RealReal
REAL
$1.39B
| $16.6M | ﹤0.01% |
1,827,713
+57,293
| +3% | +$725K |
|
2534
Allogene Therapeutics
ALLO
$708M
| $16.6M | ﹤0.01% |
6,793,620
-5,317,800
| -44% | -$10.7M |
|
2535
Grand Canyon Education
LOPE
$3.76B
| $16.6M | ﹤0.01% |
97,342
+46,424
| +91% | +$7.79M |
|
2536
CALL
Consolidated Edison
ED
$40.2B
| $16.5M | ﹤0.01% |
146,200
-34,800
| -19% | -$3.77M |
|
2537
PUT
United States Brent Oil Fund
BNO
$785M
| $16.5M | ﹤0.01% |
318,100
+306,500
| +2,642% | +$11.4M |
|
2538
CALL
ASE Group
ASX
$103B
| $16.5M | ﹤0.01% |
762,200
+700,900
| +1,143% | +$14.7M |
|
2539
PUT
Macy's
M
$6.16B
| $16.5M | ﹤0.01% |
913,400
-357,600
| -28% | -$7.24M |
|
2540
PUT
DexCom
DXCM
$33.9B
| $16.5M | ﹤0.01% |
262,900
-420,100
| -62% | -$29.3M |
|
|
VSXY
2541
CALL
Victoria's Secret
VSXY
$7.08B
| $16.5M | ﹤0.01% |
355,800
+25,900
| +8% | +$1.45M |
|
2542
Manulife Financial
MFC
$73.8B
| $16.5M | ﹤0.01% |
478,356
+257,635
| +117% | +$9.27M |
|
2543
PUT
Copart
CPRT
$29.3B
| $16.5M | ﹤0.01% |
495,900
+126,000
| +34% | +$4.73M |
|
2544
Veralto
VLTO
$23.8B
| $16.4M | ﹤0.01% |
185,893
-302,618
| -62% | -$28.8M |
|
2545
Thor Industries
THO
$4.11B
| $16.4M | ﹤0.01% |
205,438
-591,073
| -74% | -$60.3M |
|
2546
CALL
ProShares Ultra Gold
UGL
$801M
| $16.4M | ﹤0.01% |
266,900
-30,700
| -10% | -$2.11M |
|
2547
Harmony Biosciences
HRMY
$2.22B
| $16.4M | ﹤0.01% |
585,623
+165,213
| +39% | +$5.42M |
|
2548
Globant
GLOB
$1.61B
| $16.4M | ﹤0.01% |
355,589
+12,294
| +4% | +$680K |
|
2549
Capricor Therapeutics
CAPR
$386M
| $16.4M | ﹤0.01% |
539,232
-362,764
| -40% | -$9.67M |
|
2550
Talos Energy
TALO
$2.63B
| $16.4M | ﹤0.01% |
1,039,278
+917,627
| +754% | +$11.8M |
|
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.