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 | |
|---|---|---|---|---|---|---|
2651
Janux Therapeutics
JANX
$986M
| $18.4M | ﹤0.01% |
1,200,737
+848,560
| +241% | +$12.3M |
|
2652
CALL
Ionis Pharmaceuticals
IONS
$9.51B
| $18.4M | ﹤0.01% |
232,500
+117,200
| +102% | +$8.82M |
|
2653
CALL
State Street SPDR S&P Semiconductor ETF
XSD
$2.93B
| $18.4M | ﹤0.01% |
29,500
+26,800
| +993% | +$14M |
|
2654
PUT
VF Corp
VFC
$5.85B
| $18.4M | ﹤0.01% |
1,102,300
-1,175,500
| -52% | -$21M |
|
2655
Immatics
IMTX
$1.29B
| $18.4M | ﹤0.01% |
1,814,657
-37,306
| -2% | -$394K |
|
2656
CALL
Guardant Health
GH
$21.1B
| $18.4M | ﹤0.01% |
122,500
-16,500
| -12% | -$1.79M |
|
|
CNR
2657
CALL
Core Natural Resources Inc
CNR
$4.76B
| $18.4M | ﹤0.01% |
229,500
+15,400
| +7% | +$1.36M |
|
2658
CleanSpark
CLSK
$3.1B
| $18.4M | ﹤0.01% |
1,261,278
-843,409
| -40% | -$11.9M |
|
2659
CALL
Cincinnati Financial
CINF
$26.6B
| $18.3M | ﹤0.01% |
99,000
+30,000
| +43% | +$4.97M |
|
2660
BHP
BHP
$220B
| $18.3M | ﹤0.01% |
219,987
+140,257
| +176% | +$11.6M |
|
2661
PUT
PBF Energy
PBF
$8.52B
| $18.3M | ﹤0.01% |
402,500
+25,900
| +7% | +$1.08M |
|
2662
CALL
Canadian National Railway
CNI
$76.7B
| $18.3M | ﹤0.01% |
153,600
+86,700
| +130% | +$9.87M |
|
2663
CALL
ProShares Ultra Semiconductors
USD
$2.96B
| $18.3M | ﹤0.01% |
175,500
+88,900
| +103% | +$7.74M |
|
|
PURR
2664
CALL
Hyperliquid Strategies Inc
PURR
$1.34B
| $18.3M | ﹤0.01% |
2,324,900
+2,304,200
| +11,131% | +$17.1M |
|
2665
PUT
Old Dominion Freight Line
ODFL
$43.7B
| $18.3M | ﹤0.01% |
84,300
+36,000
| +75% | +$7.77M |
|
|
2666
PUT
CleanSpark
CLSK
$3.1B
| $18.3M | ﹤0.01% |
1,254,500
-411,900
| -25% | -$5.81M |
|
2667
Scholar Rock
SRRK
$6.4B
| $18.3M | ﹤0.01% |
331,851
-568,948
| -63% | -$27.5M |
|
2668
PUT
InterDigital
IDCC
$8.87B
| $18.2M | ﹤0.01% |
64,400
+22,600
| +54% | +$6.72M |
|
2669
Coastal Financial
CCB
$802M
| $18.2M | ﹤0.01% |
235,224
+180,340
| +329% | +$13.5M |
|
|
QXO
2670
PUT
QXO Inc
QXO
$15.7B
| $18.2M | ﹤0.01% |
1,054,800
+368,200
| +54% | +$6.85M |
|
2671
CALL
US Global Jets ETF
JETS
$824M
| $18.2M | ﹤0.01% |
548,400
-474,400
| -46% | -$13.1M |
|
2672
CALL
iShares 0-3 Month Treasury Bond ETF
SGOV
$101B
| $18.2M | ﹤0.01% |
180,800
+157,000
| +660% | +$15.8M |
|
2673
CALL
On Holding
ONON
$10.8B
| $18.2M | ﹤0.01% |
513,500
-202,400
| -28% | -$7.4M |
|
2674
PUT
Direxion Daily FTSE China Bull 3X ETF
YINN
$653M
| $18.2M | ﹤0.01% |
845,900
+388,500
| +85% | +$12.3M |
|
2675
CALL
Papa John's
PZZA
$799M
| $18.2M | ﹤0.01% |
493,700
+170,000
| +53% | +$5.87M |
|
Similar funds
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.