SIMPLEX TRADING, LLC
CIK 0001488542 · CHICAGO, IL · Quarter end: 2026-06-30 · Filed on: 2026-08-12 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$170.57B
2026 Q2
Positions
9,154
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
49.6%
Est. Net Flow (Q)
—
2026 Q2
Portfolio Composition
Sector Allocation
—
Option Positions
PUT 29.2%CALL 20.4%
| Symbol | Company | Type | Notional Value | % Port. |
|---|---|---|---|---|
| 78462F953 | STATE STR SPDR S&P 500 ETF T | PUT | $24.95B | 14.63% |
| 78462F903 | STATE STR SPDR S&P 500 ETF T | CALL | $16.97B | 9.95% |
| 46090E953 | INVESCO QQQ TR | PUT | $10.14B | 5.94% |
| 46090E903 | INVESCO QQQ TR | CALL | $8.03B | 4.71% |
| 464287957 | ISHARES TR | PUT | $7.76B | 4.55% |
| 595112953 | MICRON TECHNOLOGY INC | PUT | $3.63B | 2.13% |
| 67066G904 | NVIDIA CORPORATION | CALL | $3.51B | 2.06% |
| 464287907 | ISHARES TR | CALL | $3.34B | 1.96% |
| 67066G954 | NVIDIA CORPORATION | PUT | $3.28B | 1.92% |
| 88160R901 | TESLA INC | CALL | $2.94B | 1.73% |
13F reports options at notional share-equivalent value; premium cost and strikes are not disclosed.
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.