SIMPLEX TRADING, LLC
Top Portfolio Positions
1,975 positions ·
$2,814,452,923 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| NVDA |
Nvidia Corp
Technology
|
1,509,153 | $263,196,283 | 9.35% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
764,884 | $159,302,390 | 5.66% | |
| SPY |
Spdr S&P 500 ETF Trust
|
202,806 | $131,892,854 | 4.69% | |
| META |
Meta Platforms, Inc.
Communication Services
|
229,853 | $131,505,796 | 4.67% | |
| TSM |
Taiwan Semiconductor Manufacturing Co Ltd
Technology
|
351,805 | $118,892,499 | 4.22% | |
| GLD |
Spdr Gold Trust
|
230,612 | $99,230,037 | 3.53% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
296,315 | $85,208,341 | 3.03% | |
| UNH |
Unitedhealth Group Inc
Healthcare
|
287,580 | $77,816,272 | 2.76% | |
| ORCL |
Oracle Corp
Technology
|
514,658 | $75,711,338 | 2.69% | |
| AMD |
Advanced Micro Devices Inc
Technology
|
260,622 | $53,018,333 | 1.88% |
Portfolio Trend
25 quarters · across all stocks
Holdings in ATOM
Shares Held
Position Value (USD)
19 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,468 | 648 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $7,571 | 3,426 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $166,687 | 37,712 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $130,742 | 25,941 | Shares | Sole | 2025-08-05 | |
| 2025-03-31 | $168,000 | 42,000 | Shares | Sole | 2025-05-12 | |
| 2024-12-31 | $871,914 | 75,165 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $70,047 | 26,634 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $205,313 | 53,888 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $312,182 | 50,679 | Shares | Sole | 2024-04-25 | |
| 2023-12-31 | $72,609 | 10,358 | Shares | Sole | 2024-02-02 | |
| 2023-09-30 | $183,299 | 29,281 | Shares | Sole | 2023-11-01 | |
| 2023-06-30 | $184,722 | 21,063 | Shares | Sole | 2023-08-04 | |
| 2023-03-31 | $80,433 | 12,627 | Shares | Sole | 2023-04-27 | |
| 2022-12-31 | $235,650 | 37,886 | Shares | Sole | 2023-02-02 | |
| 2022-09-30 | $164,227 | 16,212 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $194,353 | 20,720 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $11,349 | 869 | Shares | Sole | 2022-05-02 | |
| 2020-12-31 | $75,703 | 4,705 | Shares | Sole | 2021-02-02 | |
| 2020-09-30 | $283,048 | 27,086 | Shares | Sole | 2020-10-14 | |
| No 13F history on record for this holder in this stock. | ||||||