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 | |
|---|---|---|---|---|---|---|
5776
CALL
Zevra Therapeutics
ZVRA
$669M
| $2.27M | ﹤0.01% |
243,400
+86,200
| +55% | +$777K |
|
5777
Bio-Techne
TECH
$11.2B
| $2.27M | ﹤0.01% |
43,402
-823,318
| -95% | -$49.4M |
|
5778
Nicolet Bankshares
NIC
$3.74B
| $2.27M | ﹤0.01% |
15,258
-210,557
| -93% | -$30.6M |
|
|
BEX
5779
CALL
Tradr 2X Long BE Daily ETF
BEX
$195M
| $2.27M | ﹤0.01% |
136,600
+96,800
| +243% | +$2.26M |
|
5780
CTS Corp
CTS
$1.8B
| $2.27M | ﹤0.01% |
47,473
-55,054
| -54% | -$2.76M |
|
5781
CALL
FS KKR Capital
FSK
$3.44B
| $2.27M | ﹤0.01% |
222,700
+68,900
| +45% | +$862K |
|
5782
PUT
Insulet
PODD
$10B
| $2.27M | ﹤0.01% |
10,800
-51,000
| -83% | -$12.8M |
|
|
ONIT
5783
PUT
Onity Group
ONIT
$323M
| $2.27M | ﹤0.01% |
57,700
+6,400
| +12% | +$278K |
|
5784
CALL
Kymera Therapeutics
KYMR
$9.49B
| $2.27M | ﹤0.01% |
27,200
+16,000
| +143% | +$1.27M |
|
5785
CALL
FB Financial Corp
FBK
$3.1B
| $2.26M | ﹤0.01% |
+43,600
| New | +$2.45M |
|
5786
PUT
FirstEnergy
FE
$27.3B
| $2.26M | ﹤0.01% |
44,700
-163,100
| -78% | -$7.91M |
|
5787
CALL
Advanced Drainage Systems
WMS
$11B
| $2.26M | ﹤0.01% |
16,500
+12,200
| +284% | +$1.89M |
|
5788
Simulations Plus
SLP
$370M
| $2.26M | ﹤0.01% |
191,401
-85,614
| -31% | -$1.26M |
|
5789
MacroGenics
MGNX
$272M
| $2.26M | ﹤0.01% |
782,618
-252,535
| -24% | -$539K |
|
5790
Trump Media & Technology Group
DJT
$2.32B
| $2.26M | ﹤0.01% |
243,575
-405,827
| -62% | -$4.66M |
|
5791
ARKO Corp
ARKO
$507M
| $2.26M | ﹤0.01% |
406,292
+226,414
| +126% | +$1.26M |
|
5792
CALL
Kirby Corp
KEX
$7.19B
| $2.26M | ﹤0.01% |
17,000
+12,700
| +295% | +$1.61M |
|
5793
CALL
RenaissanceRe
RNR
$13.3B
| $2.26M | ﹤0.01% |
7,600
+3,500
| +85% | +$1.02M |
|
5794
Credicorp
BAP
$29.7B
| $2.26M | ﹤0.01% |
6,659
-36,044
| -84% | -$12.1M |
|
5795
PUT
Birkenstock
BIRK
$7.86B
| $2.26M | ﹤0.01% |
63,000
-55,800
| -47% | -$2.18M |
|
5796
PUT
Silicon Motion
SIMO
$8.41B
| $2.26M | ﹤0.01% |
20,100
-7,600
| -27% | -$922K |
|
5797
PUT
IDEX
IEX
$17.5B
| $2.26M | ﹤0.01% |
11,900
+8,200
| +222% | +$1.62M |
|
5798
Franklin US Equity Index ETF
USPX
$2.09B
| $2.26M | ﹤0.01% |
39,656
-14,485
| -27% | -$861K |
|
5799
CALL
NGL Energy Partners
NGL
$2.18B
| $2.25M | ﹤0.01% |
182,800
-3,300
| -2% | -$37.5K |
|
5800
CALL
Jones Lang LaSalle
JLL
$16.7B
| $2.25M | ﹤0.01% |
7,400
-10,400
| -58% | -$3.36M |
|
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.