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 | |
|---|---|---|---|---|---|---|
2926
Dimensional Core Fixed Income ETF
DFCF
$10.9B
| $12.3M | ﹤0.01% |
291,612
+201,610
| +224% | +$8.6M |
|
2927
CALL
Ormat Technologies
ORA
$7.06B
| $12.3M | ﹤0.01% |
110,000
+67,100
| +156% | +$7.79M |
|
2928
PUT
Alnylam Pharmaceuticals
ALNY
$30.6B
| $12.3M | ﹤0.01% |
37,200
-52,900
| -59% | -$18M |
|
2929
Peloton Interactive
PTON
$2.47B
| $12.3M | ﹤0.01% |
2,868,985
+2,071,234
| +260% | +$10.1M |
|
2930
PUT
Toyota
TM
$226B
| $12.3M | ﹤0.01% |
59,700
-31,000
| -34% | -$7.01M |
|
2931
PUT
Cenovus Energy
CVE
$57.2B
| $12.3M | ﹤0.01% |
463,400
-54,100
| -10% | -$1.15M |
|
2932
Sable Offshore Corp
SOC
$796M
| $12.3M | ﹤0.01% |
743,596
-1,596,726
| -68% | -$18.7M |
|
2933
CALL
United States Antimony
UAMY
$825M
| $12.3M | ﹤0.01% |
1,405,000
-585,800
| -29% | -$5.11M |
|
2934
Boston Beer
SAM
$1.91B
| $12.3M | ﹤0.01% |
53,214
-79,729
| -60% | -$17.9M |
|
2935
CALL
Strive Inc
ASST
$1.05B
| $12.3M | ﹤0.01% |
1,223,578
+718,443
| +142% | +$8.94M |
|
|
BETA
2936
Beta Technologies Inc
BETA
$5.82B
| $12.3M | ﹤0.01% |
833,927
-192,078
| -19% | -$3.94M |
|
2937
Verastem
VSTM
$596M
| $12.2M | ﹤0.01% |
2,308,669
-44,796
| -2% | -$276K |
|
2938
Thomson Reuters
TRI
$44.9B
| $12.2M | ﹤0.01% |
133,870
+40,738
| +44% | +$4.3M |
|
2939
CALL
Guidewire Software
GWRE
$14.6B
| $12.2M | ﹤0.01% |
81,800
+74,800
| +1,069% | +$11.4M |
|
2940
Genius Sports
GENI
$2.33B
| $12.2M | ﹤0.01% |
2,761,587
-1,188,206
| -30% | -$8.46M |
|
2941
CALL
Vanguard Real Estate ETF
VNQ
$39.2B
| $12.2M | ﹤0.01% |
137,900
-128,800
| -48% | -$11.8M |
|
2942
Republic Services
RSG
$65.7B
| $12.2M | ﹤0.01% |
55,819
-97,296
| -64% | -$21.3M |
|
2943
Renasant Corp
RNST
$3.98B
| $12.2M | ﹤0.01% |
337,901
-864,604
| -72% | -$32.5M |
|
2944
CALL
Cognizant
CTSH
$26.5B
| $12.2M | ﹤0.01% |
198,900
-165,000
| -45% | -$11.8M |
|
2945
Cavco Industries
CVCO
$4.65B
| $12.2M | ﹤0.01% |
25,185
-15,853
| -39% | -$9M |
|
2946
PUT
Align Technology
ALGN
$12.9B
| $12.2M | ﹤0.01% |
71,100
-37,500
| -35% | -$6.57M |
|
2947
LSB Industries
LXU
$737M
| $12.2M | ﹤0.01% |
817,563
+783,873
| +2,327% | +$8.94M |
|
2948
Advanced Drainage Systems
WMS
$11.4B
| $12.2M | ﹤0.01% |
88,723
-773,972
| -90% | -$120M |
|
2949
iShares MSCI All Country Asia ex Japan ETF
AAXJ
$3.84B
| $12.2M | ﹤0.01% |
+126,320
| New | +$12.7M |
|
2950
Prudential Financial
PRU
$43.2B
| $12.1M | ﹤0.01% |
124,346
-449,382
| -78% | -$46.5M |
|
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.