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 | |
|---|---|---|---|---|---|---|
301
CALL
Iris Energy
IREN
$14.2B
| $309M | 0.05% |
9,023,600
-2,336,800
| -21% | -$106M |
|
|
302
PUT
Mastercard
MA
$492B
| $309M | 0.05% |
618,500
+169,400
| +38% | +$89.2M |
|
303
PUT
iShares MSCI South Korea ETF
EWY
$25.9B
| $307M | 0.05% |
2,493,600
+2,141,400
| +608% | +$268M |
|
|
ONC
304
BeOne Medicines Ltd
ONC
$40.6B
| $307M | 0.05% |
1,032,298
+498,781
| +93% | +$161M |
|
305
CALL
Cisco
CSCO
$475B
| $304M | 0.05% |
3,922,500
-4,622,800
| -54% | -$362M |
|
306
CALL
SoFi Technologies
SOFI
$23.2B
| $302M | 0.05% |
19,042,900
-4,084,800
| -18% | -$86.1M |
|
307
Lennox International
LII
$14.9B
| $299M | 0.05% |
644,634
+24,199
| +4% | +$12.5M |
|
308
PUT
IBM
IBM
$225B
| $298M | 0.05% |
1,228,000
-1,059,200
| -46% | -$287M |
|
309
CALL
Accenture
ACN
$110B
| $296M | 0.05% |
1,493,600
+78,900
| +6% | +$18.4M |
|
310
CALL
Corning
GLW
$137B
| $296M | 0.05% |
2,173,400
+188,600
| +10% | +$22.7M |
|
311
Air Products & Chemicals
APD
$68.9B
| $295M | 0.05% |
1,016,233
-614,806
| -38% | -$170M |
|
312
Chevron
CVX
$386B
| $295M | 0.05% |
1,426,383
-1,010,548
| -41% | -$184M |
|
313
Palantir
PLTR
$420B
| $295M | 0.05% |
2,015,600
-1,330,855
| -40% | -$203M |
|
314
ASML
ASML
$691B
| $294M | 0.05% |
222,520
-294,434
| -57% | -$403M |
|
315
Palo Alto Networks
PANW
$313B
| $292M | 0.05% |
1,823,683
-1,443,160
| -44% | -$242M |
|
316
PUT
United Airlines
UAL
$41B
| $291M | 0.05% |
3,158,400
-353,700
| -10% | -$37.1M |
|
317
CALL
Bristol-Myers Squibb
BMY
$130B
| $290M | 0.05% |
4,782,000
+784,400
| +20% | +$45.7M |
|
|
NVO
318
PUT
Novo Nordisk
NVO
$207B
| $288M | 0.05% |
7,833,400
-7,553,900
| -49% | -$358M |
|
319
PUT
Verizon
VZ
$196B
| $288M | 0.05% |
5,728,400
+279,000
| +5% | +$12.9M |
|
320
PUT
AST SpaceMobile
ASTS
$21.4B
| $287M | 0.05% |
3,466,200
-1,193,900
| -26% | -$113M |
|
321
CenterPoint Energy
CNP
$26.5B
| $283M | 0.05% |
6,567,564
+1,912,426
| +41% | +$78.9M |
|
|
322
PUT
SoFi Technologies
SOFI
$23.2B
| $281M | 0.05% |
17,714,400
-10,289,400
| -37% | -$217M |
|
323
Pinnacle Financial Partners Inc
PNFP
$16B
| $281M | 0.05% |
3,263,185
+1,974,416
| +153% | +$184M |
|
324
CALL
Constellation Energy
CEG
$98.6B
| $279M | 0.05% |
999,500
+84,100
| +9% | +$25.6M |
|
325
Intel
INTC
$493B
| $279M | 0.05% |
6,323,746
-6,770,455
| -52% | -$310M |
|
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.