SIMPLEX TRADING, LLC
All 13F Filings
- Location
- Chicago, IL
- Most recent 13F
- Q4 2025
- Holdings value ($000)
- 177,415,581
- Description
- Chicago Illinois based planning integrated investment advisor with an independent advisory structure and a disciplined and process driven investment mandate. The approach emphasizes concentrated position governance, valuation discipline and downside awareness, and active stewardship and governance oversight for fiduciary household mandates. Risk framing is embedded in allocation decisions, position sizing, and portfolio construction discipline through execution path consistency and mandate calibration.
- Website
- https://simplextrading.com/
- Founded
- 2010
- Chairman
- —
- CEO
- —
- All SEC filings
- View on sec.gov
Sector allocation over time (stocks only)
Stacked by quarter. Hover to see detailed sector breakdown for any quarter.
| Quarter | Date Filed | Holdings | Value ($000) | Form Type | Name |
|---|---|---|---|---|---|
| Q4 2025 | 2/11/2026 | 8,343 | 177,415,581 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2025 | 11/12/2025 | 9,236 | 194,890,676 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2025 | 8/5/2025 | 8,867 | 174,645,044 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2025 | 5/12/2025 | 8,744 | 156,192,203 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2024 | 2/11/2025 | 8,706 | 178,626,716 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2024 | 11/8/2024 | 8,741 | 170,384,505 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2024 | 7/25/2024 | 9,043 | 161,874,124 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2024 | 4/25/2024 | 9,151 | 173,111,358 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2023 | 2/2/2024 | 9,123 | 156,412,678 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2023 | 11/1/2023 | 9,037 | 127,137,196 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2023 | 8/4/2023 | 9,330 | 121,640,666 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2023 | 4/27/2023 | 9,440 | 113,801,386 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2022 | 2/2/2023 | 9,644 | 91,919,746 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2022 | 11/4/2022 | 10,392 | 88,454,611 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2022 | 8/3/2022 | 10,360 | 94,071,920 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2022 | 5/2/2022 | 10,642 | 109,356,144 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2021 | 2/23/2022 | 10,651 | 99,044,558 | 13F-HR/A - RESTATEMENT | SIMPLEX TRADING, LLC |
| Q4 2021 | 2/4/2022 | 9,743 | 106,904,097 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2021 | 10/28/2021 | 9,899 | 107,070,579 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2021 | 8/12/2021 | 10,093 | 103,526,715 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2021 | 4/26/2021 | 9,845 | 55,654,631 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2020 | 2/2/2021 | 8,849 | 77,177,776 | 13F-HR | SIMPLEX TRADING, LLC |
| Q3 2020 | 10/14/2020 | 8,296 | 73,516,410 | 13F-HR | SIMPLEX TRADING, LLC |
| Q2 2020 | 7/13/2020 | 7,991 | 62,681,646 | 13F-HR | SIMPLEX TRADING, LLC |
| Q1 2020 | 4/29/2020 | 7,824 | 56,715,256 | 13F-HR | SIMPLEX TRADING, LLC |
| Q4 2019 | 2/5/2020 | 7,468 | 45,747,906 | 13F-HR | SIMPLEX TRADING, LLC |
Swipe for more columns
Money flow by instrument (QoQ, ex-options)
Derivatives reported exposure ($000):
173.9 M
(98.0% of total reported value)
· QoQ Δ:
-16.5 M
| Type | Value ($000) | Share % | Inflow | Outflow | Net |
|---|---|---|---|---|---|
| Stocks | 3.556 M | 100.0% | 0 | 978.1 K | -978.1 K |
Swipe for more columns
Fund Snapshot
Q4 2025
Latest filed
2/11/2026
Total value ($000)
177,415,581
Holdings
8343
QoQ value change ($000)
-17,475,095
(-9.0%)
Value = total reported 13F value ($000), Holdings = number of positions.
13F Value over time
Holdings count over time
Sector allocation (latest, stocks only)
Methodology:
sector allocation is stocks-only;
instrument flow table is ex-options;
options exposure is shown separately.
Details.