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
|
+$9.91B |
| 2 |
SPCX
SpaceX
SPCX
|
+$871M |
| 3 |
Eli Lilly
LLY
|
+$719M |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$3B |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.54B |
| 3 |
TSMC
TSM
|
+$1.42B |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
SNDK
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.92% |
| 2 | Healthcare | 2.55% |
| 3 | Industrials | 2.24% |
| 4 | Financials | 2.13% |
| 5 | Consumer Discretionary | 1.76% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3351
CALL
Pembina Pipeline
PBA
$28.7B
| $11.2M | ﹤0.01% |
242,700
+176,300
| +266% | +$8.16M |
|
|
SOBO
3352
South Bow Corp
SOBO
$7.67B
| $11.2M | ﹤0.01% |
318,459
-84,066
| -21% | -$2.96M |
|
3353
NETSCOUT
NTCT
$2.88B
| $11.2M | ﹤0.01% |
257,561
+193,007
| +299% | +$7.26M |
|
3354
CALL
SL Green Realty
SLG
$3.97B
| $11.2M | ﹤0.01% |
216,500
-26,600
| -11% | -$1.19M |
|
3355
IDEAYA Biosciences
IDYA
$3.49B
| $11.2M | ﹤0.01% |
300,438
-378,962
| -56% | -$11.6M |
|
3356
Redwire
RDW
$3.39B
| $11.2M | ﹤0.01% |
914,774
-2,954,108
| -76% | -$39M |
|
3357
Regions Financial
RF
$27.2B
| $11.2M | ﹤0.01% |
370,446
+90,289
| +32% | +$2.53M |
|
3358
ArcelorMittal
MT
$55.7B
| $11.2M | ﹤0.01% |
185,497
-211,360
| -53% | -$13.2M |
|
3359
CALL
Bath & Body Works
BBWI
$3.91B
| $11.2M | ﹤0.01% |
482,900
-17,900
| -4% | -$342K |
|
3360
PUT
VICI Properties
VICI
$29B
| $11.2M | ﹤0.01% |
420,470
+292,770
| +229% | +$8.2M |
|
3361
Canadian Pacific Kansas City
CP
$82.2B
| $11.2M | ﹤0.01% |
128,711
-328,937
| -72% | -$28.2M |
|
3362
Nektar Therapeutics
NKTR
$2.49B
| $11.2M | ﹤0.01% |
159,747
-353,784
| -69% | -$25.9M |
|
3363
Zentalis Pharmaceuticals
ZNTL
$255M
| $11.1M | ﹤0.01% |
2,298,403
+566,320
| +33% | +$2.26M |
|
3364
AtaiBeckley Inc
ATAI
$2.69B
| $11.1M | ﹤0.01% |
2,114,908
+1,943,520
| +1,134% | +$8.18M |
|
|
OMDA
3365
Omada Health Inc
OMDA
$1.46B
| $11.1M | ﹤0.01% |
507,747
+355,513
| +234% | +$5.67M |
|
3366
Euronet Worldwide
EEFT
$2.74B
| $11.1M | ﹤0.01% |
152,263
+45,655
| +43% | +$3.19M |
|
|
BRUN
3367
PUT
Boost Run Inc
BRUN
$1.41B
| $11.1M | ﹤0.01% |
+287,000
| New | +$8.9M |
|
3368
CALL
Kohl's
KSS
$2.18B
| $11.1M | ﹤0.01% |
628,000
-38,400
| -6% | -$569K |
|
3369
Zebra Technologies
ZBRA
$17.8B
| $11.1M | ﹤0.01% |
42,221
-125,881
| -75% | -$29.6M |
|
3370
Qorvo
QRVO
$8.66B
| $11.1M | ﹤0.01% |
119,134
+42,823
| +56% | +$3.95M |
|
3371
PUT
Woodward
WWD
$21.9B
| $11.1M | ﹤0.01% |
26,100
+15,200
| +139% | +$5.76M |
|
3372
PUT
Baker Hughes
BKR
$64.3B
| $11.1M | ﹤0.01% |
200,000
-153,300
| -43% | -$9.69M |
|
3373
FIVE9
FIVN
$2.47B
| $11.1M | ﹤0.01% |
520,586
-100,158
| -16% | -$1.98M |
|
3374
CALL
Lionsgate Studios
LION
$3.57B
| $11.1M | ﹤0.01% |
724,500
-608,300
| -46% | -$7.86M |
|
3375
GATX Corp
GATX
$6.38B
| $11.1M | ﹤0.01% |
62,593
+20,720
| +49% | +$3.77M |
|
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Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,447 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin deployed $103B of net new capital in Q2 2026, opening 2,575 new positions and adding to 6,089 existing holdings. Its largest new stake was SpaceX: 5,129,884 shares worth $876M.
By sector, the portfolio is most concentrated in Technology at 3.9% of assets, down from 4.5% a quarter earlier, followed by Healthcare and Industrials.
On the sell side, the largest reduction was Micron Technology, an estimated $3B trimmed.
- Ken Griffin's largest Q2 2026 buy was SpaceX: 5,129,884 shares worth $876M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q2 2026, an estimated $9.91B increase.
- Ken Griffin's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $3B.
- Ken Griffin fully exited iShares 7-10 Year Treasury Bond ETF in Q2 2026, selling an estimated $325M.
- Ken Griffin's ten largest holdings make up 23% of its $875B portfolio in Q2 2026.
- Ken Griffin opened 2,575 new positions and closed 1,872 in Q2 2026.
- Ken Griffin's portfolio value rose 41% quarter-over-quarter to $875B.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.