Managers / Q2 2025 · view latest →
SIMPLEX TRADING, LLC
CIK 0001488542 · 230 S. LASALLE STREET, SUITE 08-500, CHICAGO, IL, 60604 · 312-360-2466
Reported Value
$175M
Q2 2025
Positions
9,904
Filings on Record
31
2019–present window
Filed
Aug 5, 2025
original filing
Summary
Simplex Trading, Llc reported $175M in U.S.-listed holdings across 9,904 positions for Q2 2025.
Compared with Q1 2025, the fund opened 1579 new positions and exited 1456.
Reported Value by Quarter
13F Reported Value
Portfolio Composition
By security type
Composition data arrives with ticker enrichment.
Quarter-over-Quarter Changes full breakdown →
Holdings — Q2 2025
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $149.1B | 10,161 | May 14, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $177.4B | 9,381 | Feb 11, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $195M | 10,359 | Nov 12, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $175M | 9,904 | Aug 5, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $156M | 9,739 | May 12, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $179M | 9,701 | Feb 11, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $170M | 9,646 | Nov 8, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $162M | 9,954 | Jul 25, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $173M | 10,037 | Apr 25, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $156M | 9,984 | Feb 2, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $127M | 9,858 | Nov 1, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $122M | 10,161 | Aug 4, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $114M | 10,304 | Apr 27, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $91.9B | 10,527 | Feb 2, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $88.5B | 11,393 | Nov 4, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $94.1B | 11,351 | Aug 3, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $109.4B | 11,559 | May 2, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $99.0B | 11,473 | Feb 23, 2022 | RESTATEMENT | changes · EDGAR ↗ |
| Q3 2021 | $107.1B | 10,900 | Oct 28, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $103.5B | 11,103 | Aug 12, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $55.7B | 10,782 | Apr 26, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $77.2B | 9,759 | Feb 2, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $73.5B | 9,133 | Oct 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q2 2020 | $62.7B | 8,797 | Jul 13, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q1 2020 | $56.7B | 8,558 | Apr 29, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $45.7B | 8,124 | Feb 5, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $35.2B | 8,137 | Oct 15, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $36.6B | 7,921 | Jul 26, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $36.0B | 7,930 | Apr 18, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $34.1B | 7,843 | Jan 16, 2019 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.