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 | |
|---|---|---|---|---|---|---|
201
Lockheed Martin
LMT
$138B
| $453M | 0.07% |
749,241
+280,572
| +60% | +$173M |
|
202
PUT
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.6B
| $452M | 0.07% |
5,511,700
-2,301,100
| -29% | -$194M |
|
203
Parker-Hannifin
PH
$134B
| $451M | 0.07% |
503,514
+29,164
| +6% | +$27.6M |
|
204
PUT
Merck
MRK
$322B
| $450M | 0.07% |
3,743,200
-157,400
| -4% | -$18.2M |
|
205
O'Reilly Automotive
ORLY
$74.9B
| $448M | 0.07% |
4,851,312
-8,668
| -0.2% | -$813K |
|
206
CALL
KraneShares CSI China Internet ETF
KWEB
$5.56B
| $446M | 0.07% |
15,681,800
-321,100
| -2% | -$10.5M |
|
207
PUT
Bloom Energy
BE
$62.2B
| $445M | 0.07% |
3,286,500
-663,100
| -17% | -$97.3M |
|
208
PUT
iShares China Large-Cap ETF
FXI
$4.25B
| $445M | 0.07% |
12,399,600
+226,200
| +2% | +$8.6M |
|
209
Yum! Brands
YUM
$39.5B
| $444M | 0.07% |
2,854,992
+2,177,219
| +321% | +$345M |
|
210
Applied Materials
AMAT
$417B
| $441M | 0.07% |
1,290,552
-1,184,671
| -48% | -$398M |
|
|
211
CALL
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$48.2B
| $436M | 0.07% |
940,400
-410,200
| -30% | -$199M |
|
212
PUT
ServiceNow
NOW
$132B
| $435M | 0.07% |
4,158,000
+1,959,100
| +89% | +$230M |
|
213
PUT
iShares Bitcoin Trust
IBIT
$47.2B
| $428M | 0.07% |
11,135,000
-1,813,900
| -14% | -$78.5M |
|
214
PUT
Mercado Libre
MELI
$98.4B
| $425M | 0.07% |
245,800
+23,600
| +11% | +$45.5M |
|
215
Thermo Fisher Scientific
TMO
$224B
| $425M | 0.07% |
864,489
+174,084
| +25% | +$94.5M |
|
|
216
PUT
Lam Research
LRCX
$390B
| $423M | 0.07% |
1,978,700
-2,206,000
| -53% | -$493M |
|
217
CALL
Qualcomm
QCOM
$171B
| $418M | 0.07% |
3,247,500
+112,500
| +4% | +$16.4M |
|
218
UnitedHealth
UNH
$361B
| $417M | 0.07% |
1,542,330
-1,386,011
| -47% | -$413M |
|
219
PUT
Adobe
ADBE
$105B
| $416M | 0.07% |
1,712,400
-327,000
| -16% | -$90.6M |
|
220
CALL
PayPal
PYPL
$50.5B
| $410M | 0.07% |
9,057,200
+597,200
| +7% | +$28.8M |
|
221
CALL
Arm
ARM
$287B
| $407M | 0.07% |
2,692,200
-859,800
| -24% | -$104M |
|
222
MSCI
MSCI
$40.8B
| $407M | 0.07% |
755,002
+258,126
| +52% | +$146M |
|
223
PUT
First Solar
FSLR
$25.9B
| $407M | 0.07% |
2,060,800
-868,800
| -30% | -$192M |
|
224
FedEx
FDX
$76.3B
| $406M | 0.07% |
1,140,501
+918,103
| +413% | +$319M |
|
225
PUT
Target
TGT
$69.2B
| $401M | 0.06% |
3,310,200
-1,291,600
| -28% | -$146M |
|
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.