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 | |
|---|---|---|---|---|---|---|
11526
PUT
Bain Capital Specialty
BCSF
$821M
| $170K | ﹤0.01% |
13,700
+900
| +7% | +$11.8K |
|
11527
PUT
Toro Corp
TORO
$195M
| $170K | ﹤0.01% |
46,800
-11,400
| -20% | -$46.4K |
|
|
MITT
11528
CALL
TPG Mortgage Investment Trust
MITT
$214M
| $170K | ﹤0.01% |
23,200
+8,800
| +61% | +$72.7K |
|
|
PHAR
11529
Pharming Group
PHAR
$874M
| $170K | ﹤0.01% |
10,189
-7,501
| -42% | -$127K |
|
|
VBNK
11530
VersaBank
VBNK
$647M
| $170K | ﹤0.01% |
+11,962
| New | +$184K |
|
11531
CALL
KNOT Offshore Partners
KNOP
$366M
| $169K | ﹤0.01% |
16,800
-7,600
| -31% | -$79K |
|
11532
CALL
Relmada Therapeutics
RLMD
$507M
| $169K | ﹤0.01% |
24,300
-10,800
| -31% | -$51.1K |
|
|
AIFC
11533
CALL
AI Financial Corp
AIFC
$58.9M
| $169K | ﹤0.01% |
152,300
-80,600
| -35% | -$131K |
|
11534
CALL
VinFast Auto
VFS
$7.37B
| $169K | ﹤0.01% |
43,900
-19,100
| -30% | -$62.5K |
|
11535
International Money Express
IMXI
$353M
| $169K | ﹤0.01% |
+10,678
| New | +$167K |
|
|
UXRP
11536
CALL
Proshares Ultra XRP ETF
UXRP
$24.1M
| $168K | ﹤0.01% |
9,120
+3,640
| +66% | +$117K |
|
11537
CALL
GoodRx Holdings
GDRX
$1.27B
| $168K | ﹤0.01% |
85,800
+44,200
| +106% | +$104K |
|
11538
CuriosityStream
CURI
$237M
| $168K | ﹤0.01% |
56,782
-86,347
| -60% | -$291K |
|
|
HITI
11539
CALL
High Tide
HITI
$204M
| $168K | ﹤0.01% |
73,300
+10,400
| +17% | +$25.6K |
|
11540
PUT
Regenxbio
RGNX
$704M
| $168K | ﹤0.01% |
20,000
-1,700
| -8% | -$17.9K |
|
|
HYFT
11541
MindWalk Holdings
HYFT
$65.3M
| $167K | ﹤0.01% |
147,907
+27,594
| +23% | +$43.9K |
|
11542
CALL
Unicycive Therapeutics
UNCY
$150M
| $167K | ﹤0.01% |
25,400
+14,500
| +133% | +$95K |
|
11543
CALL
MacroGenics
MGNX
$259M
| $167K | ﹤0.01% |
57,800
-28,500
| -33% | -$60.8K |
|
|
NXB
11544
NextBoat Inc
NXB
$52.5M
| $167K | ﹤0.01% |
83,796
-133,830
| -61% | -$331K |
|
11545
Alector
ALEC
$228M
| $167K | ﹤0.01% |
77,545
-16,002
| -17% | -$32.1K |
|
11546
PUT
Sky Harbour Group
SKYH
$379M
| $167K | ﹤0.01% |
17,300
-7,200
| -29% | -$66.3K |
|
11547
A2Z Smart Technologies
AZ
$361M
| $167K | ﹤0.01% |
24,976
-35,255
| -59% | -$225K |
|
|
NMAX
11548
CALL
Newsmax Inc
NMAX
$1.23B
| $167K | ﹤0.01% |
31,900
-17,100
| -35% | -$115K |
|
|
RC
11549
Ready Capital
RC
$294M
| $166K | ﹤0.01% |
102,673
-2,454,472
| -96% | -$4.7M |
|
11550
PUT
Evolus
EOLS
$530M
| $166K | ﹤0.01% |
40,400
+27,600
| +216% | +$134K |
|
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.