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 | |
|---|---|---|---|---|---|---|
376
AvalonBay Communities
AVB
$25.8B
| $238M | 0.04% |
1,458,952
+1,246,275
| +586% | +$218M |
|
|
377
Lam Research
LRCX
$409B
| $238M | 0.04% |
1,114,732
-3,126,734
| -74% | -$699M |
|
378
Jazz Pharmaceuticals
JAZZ
$16.3B
| $238M | 0.04% |
1,259,444
+948,324
| +305% | +$166M |
|
379
PUT
McDonald's
MCD
$195B
| $238M | 0.04% |
764,800
-55,600
| -7% | -$17.7M |
|
380
Madrigal Pharmaceuticals
MDGL
$12.5B
| $238M | 0.04% |
453,843
+417,709
| +1,156% | +$200M |
|
381
Akamai
AKAM
$17.8B
| $237M | 0.04% |
2,067,731
+523,795
| +34% | +$52.5M |
|
382
PUT
Vistra
VST
$49.1B
| $237M | 0.04% |
1,579,200
-563,700
| -26% | -$91.2M |
|
383
CALL
State Street Technology Select Sector SPDR ETF
XLK
$124B
| $237M | 0.04% |
1,780,300
-1,468,500
| -45% | -$207M |
|
384
PUT
FedEx
FDX
$76.8B
| $236M | 0.04% |
663,500
-211,000
| -24% | -$73.2M |
|
385
CALL
NextEra Energy
NEE
$179B
| $236M | 0.04% |
2,544,200
-2,100
| -0.1% | -$187K |
|
386
BridgeBio Pharma
BBIO
$16.6B
| $236M | 0.04% |
3,173,940
+2,475,758
| +355% | +$179M |
|
387
PUT
Snowflake
SNOW
$117B
| $235M | 0.04% |
1,561,000
-871,100
| -36% | -$161M |
|
388
Howmet Aerospace
HWM
$113B
| $235M | 0.04% |
1,017,692
+867,630
| +578% | +$202M |
|
389
CALL
lululemon athletica
LULU
$13.9B
| $234M | 0.04% |
1,530,700
-1,339,000
| -47% | -$240M |
|
390
Citizens Financial Group
CFG
$31.1B
| $233M | 0.04% |
3,886,355
+1,830,623
| +89% | +$113M |
|
391
Autodesk
ADSK
$52.2B
| $233M | 0.04% |
973,496
+258,137
| +36% | +$64.9M |
|
392
Analog Devices
ADI
$187B
| $232M | 0.04% |
730,395
-86,439
| -11% | -$27.5M |
|
393
CALL
PepsiCo
PEP
$189B
| $232M | 0.04% |
1,495,600
-330,200
| -18% | -$51.5M |
|
394
PUT
State Street SPDR S&P Biotech ETF
XBI
$10.5B
| $229M | 0.04% |
1,796,100
-1,824,800
| -50% | -$228M |
|
395
CALL
ProShares UltraPro Short QQQ
SQQQ
$1.73B
| $229M | 0.04% |
2,844,448
+1,318,148
| +86% | +$93.6M |
|
396
CALL
Coherent
COHR
$70.2B
| $229M | 0.04% |
959,500
+444,700
| +86% | +$102M |
|
397
PUT
Starbucks
SBUX
$123B
| $227M | 0.04% |
2,538,700
-1,168,200
| -32% | -$111M |
|
|
BNY
398
Bank of New York Mellon
BNY
$111B
| $227M | 0.04% |
1,915,334
+1,593,060
| +494% | +$189M |
|
399
Ares Management
ARES
$31.7B
| $227M | 0.04% |
2,080,407
+1,506,809
| +263% | +$200M |
|
400
PUT
Albemarle
ALB
$15.2B
| $227M | 0.04% |
1,263,200
-1,119,600
| -47% | -$191M |
|
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.