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 | |
|---|---|---|---|---|---|---|
12526
CALL
Century Therapeutics
IPSC
$355M
| $29.6K | ﹤0.01% |
+13,100
| New | +$27.5K |
|
12527
CALL
Natural Health Trends
NHTC
$15.4M
| $29.6K | ﹤0.01% |
+10,600
| New | +$35.4K |
|
12528
PUT
Lufax Holding
LU
$1.33B
| $29.5K | ﹤0.01% |
15,800
-9,400
| -37% | -$23.7K |
|
12529
AquaBounty Technologies
AQB
$7.1M
| $29.4K | ﹤0.01% |
34,028
-559
| -2% | -$521 |
|
12530
CALL
Leslie's
LESL
$7.21M
| $29.3K | ﹤0.01% |
26,200
+6,135
| +31% | +$7.89K |
|
|
RCT
12531
RedCloud Holdings
RCT
$14.9M
| $29.1K | ﹤0.01% |
41,199
-12,505
| -23% | -$13.2K |
|
|
SQNS
12532
PUT
Sequans Communications SA
SQNS
$43.5M
| $28.8K | ﹤0.01% |
11,400
-12,070
| -51% | -$45.8K |
|
|
YRD
12533
PUT
Yiren Digital
YRD
$105M
| $28.7K | ﹤0.01% |
16,700
-7,000
| -30% | -$24.9K |
|
12534
PUT
GrowGeneration
GRWG
$105M
| $28.7K | ﹤0.01% |
26,100
-11,400
| -30% | -$14.2K |
|
|
BMNG
12535
PUT
Leverage Shares 2X Long BMNR Daily ETF
BMNG
$38.1M
| $28.7K | ﹤0.01% |
1,185
+380
| +47% | +$16.5K |
|
12536
CALL
Zevia
ZVIA
$104M
| $28.7K | ﹤0.01% |
24,500
+700
| +3% | +$1.11K |
|
|
HEPS
12537
CALL
D-Market Electronic Services & Trading
HEPS
$1.01B
| $28.6K | ﹤0.01% |
10,900
-2,600
| -19% | -$7.1K |
|
12538
PUT
Conduent
CNDT
$241M
| $28.5K | ﹤0.01% |
22,300
-3,200
| -13% | -$4.88K |
|
12539
CALL
Arq
ARQ
$100M
| $28.4K | ﹤0.01% |
+11,100
| New | +$35.6K |
|
12540
PUT
Acumen Pharmaceuticals
ABOS
$182M
| $28.3K | ﹤0.01% |
+12,000
| New | +$30.6K |
|
12541
CALL
Gain Therapeutics
GANX
$90.4M
| $28.1K | ﹤0.01% |
14,500
-36,900
| -72% | -$80.3K |
|
|
VIVO
12542
PUT
VivoPower PLC
VIVO
$130M
| $28.1K | ﹤0.01% |
12,200
-14,500
| -54% | -$32.3K |
|
12543
CALL
PSQ Holdings
PSQH
$12M
| $28K | ﹤0.01% |
3,527
-21,053
| -86% | -$250K |
|
12544
Cyclerion Therapeutics
CYCN
$18.4M
| $28K | ﹤0.01% |
+18,261
| New | +$26K |
|
12545
PUT
AC Immune
ACIU
$267M
| $27.8K | ﹤0.01% |
10,100
-1,300
| -11% | -$4.04K |
|
12546
CALL
Kaltura
KLTR
$241M
| $27.7K | ﹤0.01% |
+22,700
| New | +$32.3K |
|
12547
CALL
Heron Therapeutics
HRTX
$63.5M
| $27.7K | ﹤0.01% |
34,600
+17,200
| +99% | +$19.9K |
|
|
NAKA
12548
PUT
Nakamoto Inc
NAKA
$86M
| $27.6K | ﹤0.01% |
3,128
-14,660
| -82% | -$186K |
|
|
TRVG
12549
trivago
TRVG
$367M
| $27.5K | ﹤0.01% |
10,145
-32,479
| -76% | -$93K |
|
12550
SemiLEDS
LEDS
$19.9M
| $27.5K | ﹤0.01% |
+21,969
| New | +$35.1K |
|
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.