Ken Griffin portfolio: what Citadel Advisors holds
Ken Griffin is the founder of Citadel, one of the most successful hedge funds in the world. Citadel Securities is also one of the largest market makers in the US stock market.
Stock portfolio value
$142.2B
Stock positions
657
Report date
30 June 2026
Filed
14 August 2026
Largest positions
| # | Company | Weight | Value | Last quarter |
|---|---|---|---|---|
| 1 | Ishares Tr (Core S&P500 Etf)IVV | 1.5% | $13.2B | Added +335% |
| 2 | Amazon Com IncAMZN | 0.3% | $2.6B | Added +34% |
| 3 | Nvidia CorporationNVDA | 0.3% | $2.4B | Trimmed -37% |
Positions sold
- Western Digital Corp (Note 3.000%11/1)$696.7M
- Ishares Tr (7-10 Yr Trsy Bd)$327.5M
- Live Nation Entertainment In (Note 3.125% 1/1)$217.3M
- Coterra Energy Inc$216.4M
- Clearwater Analytics Hldgs I$199.6M
- Honeywell Intl Inc (Call)$180.7M
- Terns Pharmaceuticals Inc$169.7M
- Globus Med Inc$169.4M
- Protagonist Therapeutics Inc$163.6M
- Carnival Corp (Put)$134.0M
Source: SEC filing. Values count stock positions only; options are left out of the totals and tables.
About Ken Griffin
- He began trading as a Harvard student and founded the firm in 1990.
- In 2021 he bought a rare copy of the US Constitution at auction for more than $43 million.
- Citadel's 13F filing contains many options and short-term positions, so it changes quickly.
- Citadel Advisors is among the filers with the largest number of positions.
How to use this page
A 13F filing shows what a manager held on the last day of a quarter, published up to 45 days later. It is a snapshot, not a trading signal: the manager may already have bought or sold since. Learn more in How to read 13F filings.
For information only, not investment advice. 13F filings are delayed by up to 45 days and do not show cash, bonds, short positions or non-US stocks.