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 | |
|---|---|---|---|---|---|---|
3876
Olema Pharmaceuticals
OLMA
$930M
| $8.03M | ﹤0.01% |
641,828
-263,504
| -29% | -$3.53M |
|
3877
CALL
DNOW Inc
DNOW
$2.97B
| $8.03M | ﹤0.01% |
619,000
+566,020
| +1,068% | +$7.35M |
|
3878
PUT
Edison International
EIX
$27.5B
| $8.03M | ﹤0.01% |
107,800
-85,700
| -44% | -$6.11M |
|
3879
CALL
iShares MSCI ACWI ETF
ACWI
$33.6B
| $8.02M | ﹤0.01% |
51,100
+42,900
| +523% | +$6.55M |
|
3880
Innospec
IOSP
$2.31B
| $8.02M | ﹤0.01% |
98,549
-122,334
| -55% | -$9.68M |
|
3881
CALL
US Foods
USFD
$23.6B
| $8.02M | ﹤0.01% |
78,400
+23,800
| +44% | +$2.12M |
|
3882
CALL
Boot Barn
BOOT
$4.95B
| $8.02M | ﹤0.01% |
48,800
+16,700
| +52% | +$2.71M |
|
3883
Regenxbio
RGNX
$711M
| $8.01M | ﹤0.01% |
+669,023
| New | +$5.55M |
|
3884
PUT
SK Telecom
SKM
$14.8B
| $8.01M | ﹤0.01% |
249,200
+197,600
| +383% | +$7.31M |
|
3885
State Street SPDR Nuveen ICE Municipal Bond ETF
TFI
$3.17B
| $8.01M | ﹤0.01% |
174,969
+76,793
| +78% | +$3.5M |
|
3886
Investar Holding Corp
ISTR
$426M
| $8.01M | ﹤0.01% |
267,398
+217,656
| +438% | +$6.22M |
|
3887
PUT
Texas Roadhouse
TXRH
$13.6B
| $7.98M | ﹤0.01% |
41,300
+22,100
| +115% | +$3.76M |
|
3888
Viatris
VTRS
$18.6B
| $7.98M | ﹤0.01% |
502,259
-3,490,896
| -87% | -$54.1M |
|
3889
Natural Gas Services Group
NGS
$490M
| $7.97M | ﹤0.01% |
184,747
-7,292
| -4% | -$297K |
|
3890
PUT
IDEX
IEX
$17.6B
| $7.97M | ﹤0.01% |
35,100
+23,200
| +195% | +$4.91M |
|
|
TLN
3891
Talen Energy Corp
TLN
$17.4B
| $7.96M | ﹤0.01% |
20,710
-109,611
| -84% | -$40.2M |
|
3892
ANI Pharmaceuticals
ANIP
$1.76B
| $7.95M | ﹤0.01% |
96,082
-19,000
| -17% | -$1.52M |
|
3893
CALL
Procore
PCOR
$9.09B
| $7.95M | ﹤0.01% |
195,700
-84,100
| -30% | -$4.16M |
|
3894
PUT
Illumina
ILMN
$28.8B
| $7.95M | ﹤0.01% |
45,200
-38,900
| -46% | -$5.7M |
|
3895
CALL
VanEck Rare Earth/Strategic Metals ETF
REMX
$2.3B
| $7.95M | ﹤0.01% |
89,800
-83,900
| -48% | -$8.15M |
|
3896
GSK
GSK
$99.2B
| $7.95M | ﹤0.01% |
+151,573
| New | +$8.02M |
|
3897
PUT
Critical Metals Corp
CRML
$978M
| $7.94M | ﹤0.01% |
774,500
+354,700
| +84% | +$3.79M |
|
3898
PUT
Caesars Entertainment
CZR
$6.06B
| $7.93M | ﹤0.01% |
262,600
-206,100
| -44% | -$5.81M |
|
3899
CALL
Scorpio Tankers
STNG
$3.98B
| $7.92M | ﹤0.01% |
114,400
-109,400
| -49% | -$8.55M |
|
3900
CALL
Becton Dickinson
BDX
$50B
| $7.91M | ﹤0.01% |
52,300
+4,800
| +10% | +$718K |
|
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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.