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 | |
|---|---|---|---|---|---|---|
12576
Palisade Bio
PALI
$375M
| $25K | ﹤0.01% |
14,272
-1,687,139
| -99% | -$3.07M |
|
12577
PUT
Jasper Therapeutics
JSPR
$28.7M
| $24.5K | ﹤0.01% |
28,000
+3,000
| +12% | +$4.16K |
|
12578
PUT
Claros Mortgage Trust
CMTG
$262M
| $24.5K | ﹤0.01% |
10,300
-40,700
| -80% | -$105K |
|
12579
CaliberCos
CWD
$5.91M
| $24.4K | ﹤0.01% |
+21,254
| New | +$27.4K |
|
12580
BRC Inc
BRCC
$215M
| $24.4K | ﹤0.01% |
31,473
-141,173
| -82% | -$119K |
|
12581
PUT
8x8 Inc
EGHT
$290M
| $24.4K | ﹤0.01% |
14,700
-13,500
| -48% | -$27.6K |
|
12582
CALL
Playboy Inc
PLBY
$149M
| $24.2K | ﹤0.01% |
15,900
+800
| +5% | +$1.46K |
|
12583
CALL
Skye Bioscience
SKYE
$19.3M
| $24K | ﹤0.01% |
39,100
-25,600
| -40% | -$20.9K |
|
12584
CALL
Black Diamond Therapeutics
BDTX
$121M
| $23.4K | ﹤0.01% |
11,000
+100
| +0.9% | +$238 |
|
12585
CALL
SmartRent
SMRT
$278M
| $23.4K | ﹤0.01% |
15,600
-29,200
| -65% | -$49.3K |
|
12586
CALL
Outlook Therapeutics
OTLK
$166M
| $23.4K | ﹤0.01% |
113,700
-7,600
| -6% | -$3.28K |
|
12587
InflaRx
IFRX
$296M
| $23.3K | ﹤0.01% |
26,037
-36,549
| -58% | -$34.5K |
|
|
DGNX
12588
CALL
Diginex Ltd
DGNX
$44.2M
| $23K | ﹤0.01% |
6,000
+3,462
| +136% | +$33.6K |
|
|
12589
PUT
Playboy Inc
PLBY
$149M
| $23K | ﹤0.01% |
+15,100
| New | +$27.6K |
|
12590
PUT
Flux Power
FLUX
$12.7M
| $22.9K | ﹤0.01% |
21,400
-5,700
| -21% | -$7.83K |
|
12591
Offerpad Solutions
OPAD
$22.5M
| $22.8K | ﹤0.01% |
+3,476
| New | +$34.1K |
|
12592
Metagenomi Therapeutics
MGX
$46.1M
| $22.8K | ﹤0.01% |
16,993
-161,179
| -90% | -$250K |
|
12593
CALL
Unisys
UIS
$206M
| $22.8K | ﹤0.01% |
+11,000
| New | +$27.6K |
|
12594
Marti Technologies
MRT
$158M
| $22.6K | ﹤0.01% |
11,288
-5,947
| -35% | -$12.4K |
|
12595
Solarmax Technology
SMXT
$1.77M
| $22.4K | ﹤0.01% |
+2,668
| New | +$25K |
|
12596
ECARX Holdings
ECX
$413M
| $22.4K | ﹤0.01% |
22,937
-2,440,670
| -99% | -$3.87M |
|
12597
CALL
Enlivex Ltd
ENLV
$31M
| $22.4K | ﹤0.01% |
1,607
-33
| -2% | -$522 |
|
|
MREO
12598
PUT
Mereo BioPharma
MREO
$49.1M
| $22.4K | ﹤0.01% |
67,800
-549,400
| -89% | -$236K |
|
12599
PUT
Neuronetics
STIM
$211M
| $22.3K | ﹤0.01% |
15,400
-64,100
| -81% | -$102K |
|
12600
PUT
Ring Energy
REI
$354M
| $22.2K | ﹤0.01% |
14,500
-86,500
| -86% | -$110K |
|
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.