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 | |
|---|---|---|---|---|---|---|
|
SERV
4226
CALL
Serve Robotics
SERV
$433M
| $6.45M | ﹤0.01% |
980,500
-550,400
| -36% | -$4.6M |
|
4227
CALL
Direxion Daily MSFT Bull 2X ETF
MSFU
$770M
| $6.45M | ﹤0.01% |
292,000
+162,500
| +125% | +$4.38M |
|
4228
PUT
APi Group
APG
$19B
| $6.45M | ﹤0.01% |
152,300
+132,500
| +669% | +$5.79M |
|
4229
CALL
Belden
BDC
$5.31B
| $6.44M | ﹤0.01% |
53,700
+42,700
| +388% | +$4.98M |
|
4230
CALL
CBRE Group
CBRE
$44.3B
| $6.44M | ﹤0.01% |
47,800
-11,800
| -20% | -$1.63M |
|
|
ETHE
4231
CALL
Grayscale Ethereum Staking ETF Shares
ETHE
$1.52B
| $6.43M | ﹤0.01% |
504,100
+112,800
| +29% | +$1.88M |
|
4232
CALL
Willis Towers Watson
WTW
$30.8B
| $6.43M | ﹤0.01% |
24,600
+12,900
| +110% | +$3.45M |
|
4233
Ziff Davis
ZD
$1.9B
| $6.42M | ﹤0.01% |
122,592
+50,112
| +69% | +$2.27M |
|
4234
PUT
BRC Group Holdings
RILY
$299M
| $6.42M | ﹤0.01% |
798,400
+221,900
| +38% | +$1.89M |
|
4235
Home BancShares
HOMB
$6.28B
| $6.42M | ﹤0.01% |
224,818
-1,239,239
| -85% | -$33.7M |
|
4236
Buckle
BKE
$2.27B
| $6.42M | ﹤0.01% |
152,090
+79,653
| +110% | +$3.94M |
|
4237
CALL
FMC
FMC
$1.27B
| $6.42M | ﹤0.01% |
557,900
-277,600
| -33% | -$3.87M |
|
4238
CALL
Magnite
MGNI
$3.55B
| $6.41M | ﹤0.01% |
337,900
+233,300
| +223% | +$3.34M |
|
4239
CALL
Polaris
PII
$3.95B
| $6.41M | ﹤0.01% |
93,700
+41,100
| +78% | +$2.65M |
|
|
ORBX
4240
CALL
Global X Space Tech ETF
ORBX
$43.4M
| $6.4M | ﹤0.01% |
+117,800
| New | +$6.87M |
|
4241
OrthoPediatrics
KIDS
$648M
| $6.4M | ﹤0.01% |
334,651
+149,258
| +81% | +$2.59M |
|
4242
CALL
Public Storage
PSA
$60.9B
| $6.4M | ﹤0.01% |
20,100
-14,600
| -42% | -$4.47M |
|
4243
CALL
iShares Russell 3000 ETF
IWV
$20.5B
| $6.4M | ﹤0.01% |
15,000
+7,900
| +111% | +$3.25M |
|
4244
CALL
Copa Holdings
CPA
$6.14B
| $6.39M | ﹤0.01% |
41,100
+5,300
| +15% | +$690K |
|
4245
PUT
PAR Technology
PAR
$788M
| $6.39M | ﹤0.01% |
366,600
-128,400
| -26% | -$1.85M |
|
4246
PUT
Bit Digital
BTBT
$548M
| $6.39M | ﹤0.01% |
3,547,400
+2,626,800
| +285% | +$4.62M |
|
4247
Krispy Kreme
DNUT
$578M
| $6.38M | ﹤0.01% |
1,808,353
+1,731,672
| +2,258% | +$6.18M |
|
4248
CALL
iShares US Industrials ETF
IYJ
$1.97B
| $6.38M | ﹤0.01% |
38,300
+16,600
| +76% | +$2.61M |
|
4249
Alvotech
ALVO
$1.37B
| $6.38M | ﹤0.01% |
+1,728,002
| New | +$6.18M |
|
4250
Granite Construction
GVA
$5.56B
| $6.37M | ﹤0.01% |
40,299
+6,441
| +19% | +$875K |
|
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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.