Citadel Advisors (Ken Griffin) reported 13,575 equity positions with a combined reported value of $875.10B in its Q2 2026 Form 13F filing. The ten largest of those positions account for 22.7%of the filing’s reported value.
| # | Security | CUSIP | Class | Reported value | Shares | Weight |
|---|---|---|---|---|---|---|
| 1 | STATE STR SPDR S&P 500 ETF T | 78462F103 | TR UNIT | $35.66B | 47.75M | 4.07% |
| 2 | INVESCO QQQ TR | 46090E103 | UNIT SER 1 | $26.55B | 36.06M | 3.03% |
| 3 | INVESCO QQQ TR | 46090E103 | UNIT SER 1 | $23.49B | 31.90M | 2.68% |
| 4 | STATE STR SPDR S&P 500 ETF T | 78462F103 | TR UNIT | $23.27B | 31.15M | 2.66% |
| 5 | MICRON TECHNOLOGY INC | 595112103 | COM | $22.25B | 19.28M | 2.54% |
| 6 | MICRON TECHNOLOGY INC | 595112103 | COM | $16.34B | 14.16M | 1.87% |
| 7 | TESLA INC | 88160R101 | COM | $13.70B | 32.56M | 1.57% |
| 8 | ISHARES TR | 464287200 | CORE S&P500 ETF | $13.24B | 17.68M | 1.51% |
| 9 | NVIDIA CORPORATION | 67066G104 | COM | $12.19B | 60.90M | 1.39% |
| 10 | SANDISK CORP | 80004C200 | COM | $11.72B | 5.16M | 1.34% |
The full 13,575-position filing, quarter-over-quarter position changes, concentration analysis and cross-fund security search are in the Fund Tracker dashboard.
Open Fund TrackerRock Group holds Citadel Advisors (Ken Griffin)’s 13F filings for Q2 2026, Q1 2026, Q4 2025, Q3 2025, Q2 2025, Q1 2025, Q4 2024, Q3 2024, Q2 2024. Period-over-period comparison — positions added, exited and resized — is available in the dashboard.
Browse all 13F filers on file, or read the Fund Tracker documentation for what Form 13F does and does not disclose.