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 | |
|---|---|---|---|---|---|---|
11701
CALL
Eledon Pharmaceuticals
ELDN
$286M
| $139K | ﹤0.01% |
45,000
-4,800
| -10% | -$11.3K |
|
11702
CALL
TTEC Holdings
TTEC
$83.8M
| $138K | ﹤0.01% |
+55,300
| New | +$158K |
|
11703
TherapeuticsMD
TXMD
$24.4M
| $138K | ﹤0.01% |
68,314
+40,074
| +142% | +$90.1K |
|
|
FCRS
11704
FutureCrest Acquisition Corp
FCRS
$368M
| $138K | ﹤0.01% |
13,705
+3,598
| +36% | +$36.4K |
|
11705
PUT
Prospect Capital
PSEC
$1.15B
| $138K | ﹤0.01% |
52,800
-200,200
| -79% | -$548K |
|
|
GURE
11706
Gulf Resources
GURE
$4.86M
| $138K | ﹤0.01% |
22,047
+10,656
| +94% | +$50.4K |
|
|
SEV
11707
Aptera Motors
SEV
$89M
| $138K | ﹤0.01% |
+51,943
| New | +$138K |
|
11708
PUT
The Honest Company
HNST
$548M
| $138K | ﹤0.01% |
46,800
-56,700
| -55% | -$146K |
|
11709
PUT
Caribou Biosciences
CRBU
$166M
| $138K | ﹤0.01% |
72,400
+3,600
| +5% | +$6.18K |
|
|
JAGU
11710
Jaguar Uranium Corp
JAGU
$33.3M
| $138K | ﹤0.01% |
+50,000
| New | +$117K |
|
11711
MDxHealth
MDXH
$23.6M
| $137K | ﹤0.01% |
59,634
-35,478
| -37% | -$120K |
|
11712
CALL
Offerpad Solutions
OPAD
$22.1M
| $137K | ﹤0.01% |
20,930
-80,080
| -79% | -$786K |
|
|
HLXC
11713
Helix Acquisition Corp III
HLXC
$233M
| $137K | ﹤0.01% |
+13,302
| New | +$136K |
|
|
COYY
11714
PUT
GraniteShares YieldBOOST COIN ETF
COYY
$18.5M
| $137K | ﹤0.01% |
5,333
-1,917
| -26% | -$64K |
|
|
BRCB
11715
PUT
Black Rock Coffee Bar Inc
BRCB
$172M
| $137K | ﹤0.01% |
10,600
+600
| +6% | +$9.72K |
|
11716
PUT
CEMIG Preferred Shares
CIG
$5.66B
| $137K | ﹤0.01% |
57,300
+47,300
| +473% | +$104K |
|
|
RDNW
11717
RideNow Group
RDNW
$233M
| $137K | ﹤0.01% |
19,390
-36,629
| -65% | -$222K |
|
|
OYSEU
11718
Oyster Enterprises II Acquisition Corp Units
OYSEU
| $137K | ﹤0.01% |
13,262
+101
| +0.8% | +$1.07K |
|
11719
CALL
VistaGen Therapeutics
VTGN
$11.6M
| $137K | ﹤0.01% |
239,200
-147,400
| -38% | -$89.6K |
|
11720
CALL
Douglas Emmett
DEI
$1.94B
| $137K | ﹤0.01% |
+14,500
| New | +$149K |
|
|
RBLU
11721
T-REX 2X Long RBLX Daily Target ETF
RBLU
$9.64M
| $136K | ﹤0.01% |
+11,535
| New | +$216K |
|
|
HSLV
11722
Highlander Silver Corp
HSLV
$1.11B
| $136K | ﹤0.01% |
+23,162
| New | +$131K |
|
11723
PUT
Byrna Technologies
BYRN
$98.9M
| $136K | ﹤0.01% |
14,800
-5,700
| -28% | -$74.8K |
|
11724
PUT
Maravai LifeSciences
MRVI
$857M
| $136K | ﹤0.01% |
47,900
+35,200
| +277% | +$119K |
|
11725
PUT
Paysafe
PSFE
$347M
| $136K | ﹤0.01% |
19,900
-300
| -1% | -$2.13K |
|
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.