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 | |
|---|---|---|---|---|---|---|
12226
Air Industries Group
AIRI
$12.2M
| $67.4K | ﹤0.01% |
+20,868
| New | +$68.6K |
|
|
CIRC
12227
Circle8 Group
CIRC
$61.2M
| $67.4K | ﹤0.01% |
+22,244
| New | +$70.2K |
|
12228
CALL
Cumberland Pharmaceuticals
CPIX
$118M
| $67K | ﹤0.01% |
20,600
+6,700
| +48% | +$25.8K |
|
|
IPST
12229
IP Strategy Holdings
IPST
$1.5M
| $66.7K | ﹤0.01% |
+12,636
| New | +$233K |
|
|
MAKO
12230
Mako Mining
MAKO
$854M
| $66.6K | ﹤0.01% |
+10,421
| New | +$64.5K |
|
|
MKZR
12231
MacKenzie Realty Capital
MKZR
$3.68M
| $66.4K | ﹤0.01% |
+18,664
| New | +$75.9K |
|
12232
Coya Therapeutics
COYA
$110M
| $66.4K | ﹤0.01% |
16,859
-3,224
| -16% | -$15.1K |
|
12233
Tigo Energy
TYGO
$96.7M
| $66.4K | ﹤0.01% |
17,656
-300,531
| -94% | -$994K |
|
|
BCYC
12234
CALL
Bicycle Therapeutics
BCYC
$279M
| $66.4K | ﹤0.01% |
14,300
-14,000
| -49% | -$80K |
|
12235
CALL
Genasys
GNSS
$77.9M
| $66.2K | ﹤0.01% |
36,400
-2,500
| -6% | -$4.94K |
|
|
EVAX
12236
Evaxion A/S
EVAX
$26.8M
| $66.1K | ﹤0.01% |
+17,773
| New | +$67.7K |
|
|
SRTA
12237
CALL
Strata Critical Medical Inc
SRTA
$528M
| $66K | ﹤0.01% |
+15,800
| New | +$76K |
|
12238
PUT
IZEA Worldwide
IZEA
$53.8M
| $66K | ﹤0.01% |
18,800
-31,800
| -63% | -$119K |
|
12239
Patriot National Bancorp
PNBK
$131M
| $66K | ﹤0.01% |
+51,146
| New | +$73.6K |
|
|
INV
12240
Innventure Inc
INV
$303M
| $65.3K | ﹤0.01% |
16,697
-194,693
| -92% | -$688K |
|
12241
Torrid Holdings
CURV
$230M
| $65.1K | ﹤0.01% |
36,595
+14,373
| +65% | +$17.8K |
|
12242
CALL
Certara
CERT
$1.24B
| $65K | ﹤0.01% |
11,400
-13,400
| -54% | -$102K |
|
12243
BioRestorative Therapies
BRTX
$5.61M
| $64.9K | ﹤0.01% |
238,606
+209,408
| +717% | +$134K |
|
|
NEXM
12244
NexMetals Mining Corp
NEXM
$76.6M
| $64.9K | ﹤0.01% |
26,499
-19,910
| -43% | -$69.9K |
|
|
BAIG
12245
CALL
Leverage Shares 2X Long BBAI Daily ETF
BAIG
$9.86M
| $64.8K | ﹤0.01% |
2,250
+150
| +7% | +$9.16K |
|
12246
CALL
Coherus Oncology
CHRS
$176M
| $64.4K | ﹤0.01% |
38,100
-94,000
| -71% | -$167K |
|
|
DUOG
12247
Leverage Shares 2X Long DUOL Daily ETF
DUOG
$6.85M
| $64.2K | ﹤0.01% |
+2,016
| New | +$115K |
|
12248
CALL
Full House Resorts
FLL
$84.3M
| $64.1K | ﹤0.01% |
+28,500
| New | +$68.6K |
|
|
BHST
12249
BioHarvest Sciences
BHST
$46.9M
| $64K | ﹤0.01% |
14,753
-614
| -4% | -$2.89K |
|
|
KNDI
12250
Kandi Technologies Group
KNDI
$64.4M
| $63.9K | ﹤0.01% |
76,526
-92,080
| -55% | -$89.7K |
|
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.