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 | |
|---|---|---|---|---|---|---|
11751
Radcom
RDCM
$174M
| $131K | ﹤0.01% |
10,782
-45,671
| -81% | -$546K |
|
|
DSL
11752
PUT
DoubleLine Income Solutions Fund
DSL
$1.24B
| $131K | ﹤0.01% |
+12,100
| New | +$136K |
|
|
GRFS
11753
PUT
Grifois
GRFS
$5.38B
| $131K | ﹤0.01% |
16,300
+4,300
| +36% | +$37.9K |
|
|
STEX
11754
PUT
Streamex Corp
STEX
$83.7M
| $131K | ﹤0.01% |
115,600
+84,200
| +268% | +$214K |
|
11755
PUT
RLX Technology
RLX
$2.47B
| $130K | ﹤0.01% |
59,300
+40,400
| +214% | +$93K |
|
11756
PUT
Gaotu Techedu
GOTU
$432M
| $130K | ﹤0.01% |
66,500
-59,900
| -47% | -$131K |
|
11757
CALL
BCB Bancorp
BCBP
$159M
| $130K | ﹤0.01% |
+14,500
| New | +$119K |
|
11758
PUT
Annovis Bio
ANVS
$79.6M
| $130K | ﹤0.01% |
58,300
+14,900
| +34% | +$40.9K |
|
|
VSOL
11759
CALL
VanEck Solana ETF
VSOL
$14M
| $130K | ﹤0.01% |
+11,900
| New | +$159K |
|
11760
CALL
Wheels Up
UP
$197M
| $130K | ﹤0.01% |
12,545
-9,715
| -44% | -$127K |
|
|
MSD
11761
Morgan Stanley Emerging Markets Debt Fund
MSD
$148M
| $130K | ﹤0.01% |
+18,449
| New | +$140K |
|
|
HPP
11762
Hudson Pacific Properties
HPP
$750M
| $129K | ﹤0.01% |
21,900
-276,925
| -93% | -$2.13M |
|
|
EWCZ
11763
CALL
DELISTED
European Wax Center
EWCZ
| $129K | ﹤0.01% |
+22,300
| New | +$111K |
|
11764
PUT
Crescent Capital BDC
CCAP
$413M
| $129K | ﹤0.01% |
+10,600
| New | +$145K |
|
11765
CVD Equipment Corp
CVV
$52.8M
| $129K | ﹤0.01% |
31,099
+15,159
| +95% | +$64.3K |
|
11766
Cineverse
CNVS
$68.5M
| $129K | ﹤0.01% |
53,616
+11,750
| +28% | +$28.3K |
|
|
TGEN
11767
PUT
Tecogen Inc
TGEN
$120M
| $129K | ﹤0.01% |
50,200
+27,600
| +122% | +$101K |
|
11768
CALL
Immunic
IMUX
$208M
| $128K | ﹤0.01% |
11,560
+2,280
| +25% | +$20.4K |
|
11769
CALL
Aemetis
AMTX
$121M
| $128K | ﹤0.01% |
40,200
-1,400
| -3% | -$2.55K |
|
11770
CALL
Inovio Pharmaceuticals
INO
$78.2M
| $128K | ﹤0.01% |
73,600
-310,600
| -81% | -$511K |
|
11771
GrafTech
EAF
$199M
| $128K | ﹤0.01% |
+18,872
| New | +$200K |
|
|
SLON
11772
ProShares Ultra Solana ETF
SLON
$17M
| $128K | ﹤0.01% |
5,076
+2,162
| +74% | +$99K |
|
|
WLAC
11773
CALL
DELISTED
Willow Lane Acquisition Corp
WLAC
| $128K | ﹤0.01% |
12,000
-135,300
| -92% | -$1.54M |
|
|
MREO
11774
CALL
Mereo BioPharma
MREO
$46.2M
| $128K | ﹤0.01% |
387,000
+255,500
| +194% | +$110K |
|
|
TBI
11775
Trueblue
TBI
$303M
| $128K | ﹤0.01% |
32,617
+17,418
| +115% | +$77.4K |
|
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.