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 | |
|---|---|---|---|---|---|---|
9826
PUT
WesBanco
WSBC
$4.06B
| $390K | ﹤0.01% |
+11,300
| New | +$394K |
|
|
HYPD
9827
Hyperion DeFi Inc
HYPD
$41.5M
| $390K | ﹤0.01% |
112,906
+95,881
| +563% | +$332K |
|
9828
CALL
CBIZ
CBZ
$2.97B
| $389K | ﹤0.01% |
14,500
+10,100
| +230% | +$356K |
|
|
ASM
9829
CALL
Avino Silver & Gold Mines
ASM
$1.23B
| $389K | ﹤0.01% |
+61,500
| New | +$492K |
|
9830
Medpace
MEDP
$16.8B
| $388K | ﹤0.01% |
808
-58,932
| -99% | -$30.2M |
|
|
CHCT
9831
CALL
Community Healthcare Trust
CHCT
$430M
| $388K | ﹤0.01% |
24,400
-4,900
| -17% | -$82.6K |
|
9832
CALL
Barnes & Noble Education
BNED
$422M
| $388K | ﹤0.01% |
43,900
+23,800
| +118% | +$206K |
|
9833
PUT
ICU Medical
ICUI
$4.46B
| $387K | ﹤0.01% |
3,000
-1,600
| -35% | -$230K |
|
9834
PUT
MVB Financial
MVBF
$398M
| $387K | ﹤0.01% |
+15,600
| New | +$418K |
|
9835
Globus Maritime Ltd
GLBS
$79.6M
| $387K | ﹤0.01% |
167,607
+10,014
| +6% | +$17.8K |
|
9836
First Trust Water ETF
FIW
$1.92B
| $387K | ﹤0.01% |
3,754
-21,673
| -85% | -$2.4M |
|
9837
Distillate US Fundamental Stability & Value ETF
DSTL
$2.04B
| $387K | ﹤0.01% |
+6,688
| New | +$402K |
|
9838
PUT
ProShares Ultra Euro
ULE
$4.41M
| $387K | ﹤0.01% |
30,400
+20,200
| +198% | +$263K |
|
9839
Innovator Uncapped Accelerated US Equity ETF
XUSP
$53.4M
| $387K | ﹤0.01% |
8,756
+3,585
| +69% | +$169K |
|
9840
CALL
Direxion Daily Energy Bear 2X ETF
ERY
$36.6M
| $387K | ﹤0.01% |
+37,600
| New | +$527K |
|
9841
PUT
Imperial Petroleum
IMPP
$207M
| $386K | ﹤0.01% |
90,300
+40,400
| +81% | +$161K |
|
9842
Golub Capital BDC
GBDC
$3.39B
| $386K | ﹤0.01% |
30,494
-1,959
| -6% | -$25.1K |
|
9843
PUT
Deluxe
DLX
$1.09B
| $386K | ﹤0.01% |
14,000
-17,200
| -55% | -$450K |
|
9844
PUT
Criteo S.A. Ordinary Shares
CRTO
$871M
| $385K | ﹤0.01% |
21,500
-47,600
| -69% | -$895K |
|
|
HYNE
9845
Hoyne Bancorp
HYNE
$119M
| $385K | ﹤0.01% |
26,580
-103,728
| -80% | -$1.5M |
|
9846
CALL
Azenta
AZTA
$1.46B
| $385K | ﹤0.01% |
18,200
-13,500
| -43% | -$403K |
|
9847
PUT
ZipRecruiter
ZIP
$405M
| $385K | ﹤0.01% |
+209,000
| New | +$513K |
|
|
FVR
9848
FrontView REIT
FVR
$484M
| $384K | ﹤0.01% |
24,838
-475,162
| -95% | -$7.66M |
|
9849
Regis Corp
RGS
$70.3M
| $384K | ﹤0.01% |
+15,555
| New | +$363K |
|
9850
PUT
Advanced Drainage Systems
WMS
$10.6B
| $384K | ﹤0.01% |
2,800
| – | – |
|
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.