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Simplex Trading, LLC: 13F portfolio Q2 2026 and what copying it returned
Simplex Trading, LLC's 13F for the quarter ended 2026-06-30 (filed Aug 12, 2026): 400 common-share positions, $170.6B reported. Copying each 13F the day after it was filed returned +29.9% from May 14, 2025 to Nov 6, 2026, against +25.3% for SPY.
Copying the 13F
Each 13F bought at the close of the first trading day after it was filed and held, drifting, until the next one; value-weighted over the common-share positions with a price (92.4% of the portfolio on average); 6 filings since May 12, 2025. Price returns for the clone and SPY alike (no dividends, no costs). A 13F lists only US long positions at quarter end, reported up to 45 days later.
Largest holdings (2026-06-30)
| Ticker | Company | Weight | Value | Change in the quarter |
|---|---|---|---|---|
| NVDA | NVIDIA | 0.2% | $304M | +0.8% |
| IWM | iShares Russell 2000 ETF | 0.1% | $161M | +3207.7% |
| TLT | iShares 20+ Year Treasury BD | 0.1% | $161M | +206.1% |
| GOOGL | Alphabet | 0.1% | $132M | +24.3% |
| SOXX | iShares Semiconductor ETF | 0.1% | $104M | +38.9% |
| AMZN | Amazon.com | 0.1% | $96.6M | -47.0% |
| ORCL | Oracle | 0.1% | $83.1M | +10.2% |
| AAPL | Apple | 0.0% | $75.1M | +552.4% |
| MSFT | Microsoft | 0.0% | $73.7M | +44.5% |
| TSM | Taiwan Semiconductor Manufacturing | 0.0% | $70.4M | -58.1% |
| TSLA | Tesla | 0.0% | $63.4M | +646.7% |
| MU | Micron Technology | 0.0% | $60.8M | new |
| USO | United States Oil Fund, LP | 0.0% | $52.2M | +48.8% |
| GOOG | Alphabet | 0.0% | $52.2M | +1.6% |
| SPY | SPDR S&P 500 ETF Trust | 0.0% | $39.9M | -73.6% |
| FCX | Freeport-McMoRan | 0.0% | $39.4M | +156.1% |
| KLAC | KLA | 0.0% | $37.1M | +26707.0% |
| META | Meta Platforms | 0.0% | $34.0M | -73.8% |
| AVGO | Broadcom | 0.0% | $31.7M | +94.3% |
| NOW | ServiceNow | 0.0% | $29.0M | +202.0% |
| MRVL | Marvell Technology | 0.0% | $28.2M | +138.5% |
| GLD | SPDR Gold Trust | 0.0% | $28.2M | -66.8% |
Biggest adds
- MU new
- COIN new
- QCOM new
- IBM new
- NOK new
- GE new
- HUT new
- TMUS new
- XLU new
- COST new
Biggest cuts
- SMH exit
- INTC exit
- SLB exit
- LQD exit
- XLB exit
- NFLX exit
- XLF exit
- NVO exit
- UNP exit
- MS exit
- BABA exit
Track record
Of 7 position changes scored in 7 separate decisions, 71.4% were on the right side of SPY over the next three months (Disclosures → Smart money).
Open in Disclosures → every quarter, the clone month by month, the smart-money record
Source: SEC Form 13F-HR, filer CIK 1488542. Not investment advice.