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Q2 2026 holdings · 2 filings on record
Citadel Advisors LLC
Ken Griffin
Citadel is the alternative investment firm founded and led by Ken Griffin, its chief executive and co-chief investment officer. It allocates capital across specialist teams trading equities, credit and convertible securities, commodities, fixed income and macro markets, alongside quantitative strategies. Company research, data analysis and technology all play a role, with different teams pursuing different sources of returns. The business began with convertible-bond investing before expanding into a much broader platform. Citadel Advisors' stock disclosure belongs to this investment-management business; Citadel Securities, the market-making firm also founded by Griffin, is a separate business.
Context Citadel's own corporate history identifies the 2008 financial crisis as a major setback, followed by additional investment from its principals. The firm subsequently expanded its macro and quantitative capabilities and reported recovering its earlier high-water mark in 2012.
AI-written, awaiting an editor · as of Sep 14, 2026 · not from the filings · 3 sources
- Citadel: Kenneth C. Griffin citadel.com ↗
- Citadel: What We Do citadel.com ↗
- Citadel: Who We Are citadel.com ↗
Held on Jun 30, now 108 days oldAmended Sep 2, 2026Next filing due Nov 14 · 29 days
US-listed stocks held$174.1B
Positions6,351
Behaves like128equal-sized positions
Top 10 holdings15.7%of the total
Holdings
On June 30, 2026, Citadel Advisors LLC held 6,351 positions in US-listed stocks worth $174.1 billion. The ten largest were 15.7% of it.
The other 6,301 positions, worth $121.1 billion (69.6% of the total), are in the filing.
166 of the 6,351 positions have no US ticker in our data, so they are listed under the company’s name.
Options · 7,221 lines
Listed as filed, as the number of shares each option is on. A put can be a bet against a stock or insurance on shares the fund holds, and the filing does not say which, so options are never added into the total above.
- callCalls on 47,748,200 STATE STR SPDR S&P 500 ETF T sharesSPY
- putPuts on 36,059,900 INVESCO QQQ TR sharesQQQ
- callCalls on 31,899,300 INVESCO QQQ TR sharesQQQ
- putPuts on 31,154,800 STATE STR SPDR S&P 500 ETF T sharesSPY
- putPuts on 19,275,300 MICRON TECHNOLOGY INC sharesMU
- callCalls on 14,155,700 MICRON TECHNOLOGY INC sharesMU
- callCalls on 32,564,700 Tesla, Inc. sharesTSLA
- callCalls on 60,899,600 NVIDIA CORPORATION sharesNVDA
- putPuts on 5,155,949 SanDisk Corp sharesSNDK
- putPuts on 17,637,400 VANECK ETF TRUST sharesSMH
Showing the 10 largest of 7,221 option lines, measured by the value of the shares they are on.
What this filing cannot show
A 13F is a partial picture. Here is the part that is missing.
It lists long positions in US-listed stocks and options only. Not short positions, cash, ordinary bonds, anything listed only abroad, anything private, or anything bought and sold inside the quarter.
What is a 13F?
A quarterly SEC filing where large investment managers list the long positions in US-listed stocks and options they held at the end of the quarter. It is a snapshot, filed up to 45 days after that date.
Why is this list weeks old?
Managers have 45 days after each quarter ends to file, and most of the funds we track file on the last permitted day. So the newest list still describes where the fund stood weeks ago, and the market has moved since.
What does “behaves like” mean?
How many equal-sized positions would be exactly this concentrated. Ten positions of the same size behave like 10. Ten positions where one holds most of the money behave like fewer than 2. It is 1 divided by the sum of each position’s squared share of the total.
Why are two lines sometimes the same company?
Each line is one security as the manager filed it. Two share classes of one company, or a company’s stock and its convertible notes, are separate lines in the filing, and they stay separate here.
Filing history
2 filings on record.
| Quarter ended | Reported to the SEC | Positions | Source |
|---|---|---|---|
| Jun 30, 2026 | Amended Sep 2, 2026 | 6,351 | Open the SEC filing ↗ |
| Mar 31, 2026 | May 15, 2026 | 6,006 | Open the SEC filing ↗ |
Where a manager later amended a filing, the date shown is the amendment’s. Every filing from this fund at the SEC ↗
⚠️ Public information, sourced from SEC 13F filings. A 13F shows long US-listed positions only; it cannot show shorts, cash, ordinary bonds, foreign lines, or anything bought and sold within the quarter. Values are the manager’s own quarter-end figures, filed up to 45 days later. Not financial advice.