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 | |
|---|---|---|---|---|---|---|
251
CALL
Occidental Petroleum
OXY
$59B
| $368M | 0.06% |
5,658,600
+2,097,600
| +59% | +$105M |
|
252
PUT
Spotify
SPOT
$103B
| $366M | 0.06% |
755,000
-5,200
| -0.7% | -$2.61M |
|
253
PUT
Applied Materials
AMAT
$417B
| $366M | 0.06% |
1,069,600
-805,700
| -43% | -$271M |
|
254
Salesforce
CRM
$162B
| $364M | 0.06% |
1,951,334
+366,709
| +23% | +$76M |
|
255
PUT
State Street SPDR S&P Regional Banking ETF
KRE
$4.61B
| $363M | 0.06% |
5,567,800
+688,600
| +14% | +$46.5M |
|
256
CALL
MongoDB
MDB
$35.3B
| $360M | 0.06% |
1,472,500
+502,800
| +52% | +$168M |
|
257
Equinix
EQIX
$102B
| $357M | 0.06% |
364,302
-305,041
| -46% | -$271M |
|
258
CALL
Marvell Technology
MRVL
$191B
| $357M | 0.06% |
3,604,600
-2,120,800
| -37% | -$178M |
|
259
Insmed
INSM
$29B
| $357M | 0.06% |
2,182,571
+1,025,276
| +89% | +$158M |
|
260
PUT
Wells Fargo
WFC
$264B
| $356M | 0.06% |
4,477,700
-1,369,800
| -23% | -$118M |
|
261
PUT
Morgan Stanley
MS
$338B
| $355M | 0.06% |
2,155,600
+224,800
| +12% | +$38.9M |
|
|
CRCL
262
PUT
Circle Internet Group
CRCL
$18.1B
| $354M | 0.06% |
3,707,800
+155,300
| +4% | +$13.2M |
|
|
NVO
263
CALL
Novo Nordisk
NVO
$207B
| $352M | 0.06% |
9,569,700
+1,414,200
| +17% | +$67M |
|
264
Ovintiv
OVV
$17.6B
| $352M | 0.06% |
5,922,629
+1,200,886
| +25% | +$57.9M |
|
265
CALL
State Street SPDR S&P Biotech ETF
XBI
$10.4B
| $349M | 0.06% |
2,733,500
+83,500
| +3% | +$10.4M |
|
|
PR
266
Permian Resources
PR
$18B
| $347M | 0.06% |
16,256,005
+5,650,137
| +53% | +$97.6M |
|
267
Global Payments
GPN
$22.7B
| $344M | 0.06% |
5,116,814
+3,836,986
| +300% | +$283M |
|
268
PUT
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$22.7B
| $344M | 0.06% |
7,184,500
-1,058,000
| -13% | -$61.4M |
|
269
CALL
American Express
AXP
$230B
| $342M | 0.06% |
1,132,200
+376,800
| +50% | +$126M |
|
270
US Bancorp
USB
$100B
| $341M | 0.06% |
6,558,956
+5,940,729
| +961% | +$326M |
|
271
CALL
iShares Expanded Tech-Software Sector ETF
IGV
$14.9B
| $341M | 0.06% |
4,259,300
+3,991,800
| +1,492% | +$353M |
|
272
Zoom
ZM
$31.1B
| $340M | 0.06% |
4,230,754
+3,601,442
| +572% | +$302M |
|
273
Target
TGT
$69.2B
| $339M | 0.05% |
2,800,704
+2,111,449
| +306% | +$238M |
|
274
CALL
Uber
UBER
$160B
| $339M | 0.05% |
4,714,200
-907,600
| -16% | -$69.9M |
|
275
Oracle
ORCL
$419B
| $339M | 0.05% |
2,302,838
-538,309
| -19% | -$87.5M |
|
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.