Simplex Trading, LLC
13F holdings for Q2 2026 · CHICAGO, IL · filed August 12, 2026
Simplex Trading, LLC reported $171B in 13F securities across 9,154 holdings for Q2 2026, in a Form 13F filed August 12, 2026. The largest positions were NVDA (7.9%), iShares TR (4.2%), TLT (4.2%). Reported value rose 14.4% from the quarter before. It opened 1,043 new positions, added to 869, trimmed 816 and sold out of 923.
- 13F value Q2 2026
- $171B
- Holdings
- 9,154
- Change vs prior quarter
- +14.4%
- Rank by 13F value
- #71
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Top holdings
| Stock | Value | Weight | Shares | Change in shares | Move |
|---|---|---|---|---|---|
| NVDA NVIDIA Corporation | $304M | 7.9% | 1,520,692 | +0.8% | Added |
| iShares TR | $161M | 4.2% | 536,810 | +3208% | Added |
| TLT iShares 20+ Year Treasury Bond ETF | $161M | 4.2% | 1,860,997 | +206.1% | Added |
| GOOGL Alphabet Inc. | $132M | 3.4% | 368,241 | +24.3% | Added |
| SOXX iShares PHLX SOX Semiconductor Sector Index Fund | $104M | 2.7% | 161,532 | +38.9% | Added |
| AMZN Amazon.com Inc. | $96.6M | 2.5% | 405,198 | -47.0% | Trimmed |
| ORCL Oracle Corporation | $83.1M | 2.2% | 567,292 | +10.2% | Added |
| AAPL Apple Inc. | $75.1M | 2.0% | 259,549 | +552.4% | Added |
| MSFT Microsoft Corporation | $73.7M | 1.9% | 197,528 | +44.5% | Added |
| TSM Taiwan Semiconductor Manufacturing Company Ltd. | $70.4M | 1.8% | 147,407 | -58.1% | Trimmed |
| TSLA Tesla Inc. | $63.4M | 1.7% | 150,665 | +646.7% | Added |
| MU Micron Technology Inc. | $60.8M | 1.6% | 52,682 | New | New |
| United States Oil Fund LP | $52.2M | 1.4% | 490,737 | +48.8% | Added |
| GOOG Alphabet Inc. | $52.2M | 1.4% | 147,687 | +1.6% | Added |
| Roundhill ETF Trust | $46.2M | 1.2% | 625,556 | New | New |
| SPY State Street SPDR S&P 500 ETF Trust Unit | $39.9M | 1.0% | 53,496 | -73.6% | Trimmed |
| FCX Freeport-McMoRan Inc. | $39.4M | 1.0% | 626,805 | +156.1% | Added |
| KLAC KLA Corporation | $37.1M | 1.0% | 123,044 | +2581% | Added |
| Direxion Shares ETF Trust | $36.8M | 1.0% | 138,147 | New | New |
| META Meta Platforms Inc. | $34.0M | 0.9% | 60,293 | -73.8% | Trimmed |
| Asml HLDG NV N Y Registry SHS | $32.6M | 0.9% | 16,406 | -2.0% | Trimmed |
| AVGO Broadcom Inc. | $31.7M | 0.8% | 84,040 | +94.3% | Added |
| NOW ServiceNow Inc. | $29.0M | 0.8% | 291,808 | +202.0% | Added |
| MRVL Marvell Technology Inc. | $28.2M | 0.7% | 94,668 | +138.5% | Added |
| SPDR Gold TR | $28.2M | 0.7% | 76,477 | -66.8% | Trimmed |
Share positions only, at the value reported for the end of Q2 2026. Weight is the share of $3.8B in share positions; options and bonds count in the 13F value but not here.
Biggest buys in Q2 2026
- iShares TR Added+$156M
- TLT iShares 20+ Year Treasury Bond ETF Added+$108M
- AAPL Apple Inc. Added+$63.6M
- MU Micron Technology Inc. New+$60.8M
- TSLA Tesla Inc. Added+$54.9M
- Roundhill ETF Trust New+$46.2M
- Direxion Shares ETF Trust New+$36.8M
- KLAC KLA Corporation Added+$35.7M
- SOXX iShares PHLX SOX Semiconductor Sector Index Fund Added+$29.0M
- GOOGL Alphabet Inc. Added+$25.7M
Biggest sells in Q2 2026
- AMD Advanced Micro Devices Inc. Trimmed-$130M
- SPY State Street SPDR S&P 500 ETF Trust Unit Trimmed-$112M
- TSM Taiwan Semiconductor Manufacturing Company Ltd. Trimmed-$97.6M
- META Meta Platforms Inc. Trimmed-$95.5M
- UNH UnitedHealth Group Incorporated Trimmed-$92.1M
- AMZN Amazon.com Inc. Trimmed-$85.7M
- SPDR Gold TR Trimmed-$56.8M
- ALAB Astera Labs Inc. Trimmed-$39.5M
- SMH VanEck Vectors Semiconductor ETF Sold out-$35.9M
- LITE Lumentum Holdings Inc. Trimmed-$34.2M
The change in shares since Q1 2026, adjusted for stock splits and priced at the Q2 2026 value per share. 1043 new, 869 added, 816 trimmed, 923 sold out.
Sector mix
- Technology37.6%
- Not listed with us18.8%
- Consumer Discretionary9.0%
- n/a7.6%
- Industrials6.4%
- Health Care6.1%
- Finance4.1%
- Basic Materials2.3%
- Telecommunications1.5%
- Energy1.4%
- Funds and other1.3%
- Real Estate1.1%
13F value by quarter
More holdings
| Stock | Value | Weight | Shares | Change in shares | Move |
|---|---|---|---|---|---|
| UNH UnitedHealth Group Incorporated | $27.4M | 0.7% | 65,879 | -77.1% | Trimmed |
| GEV GE Vernova Inc. | $23.9M | 0.6% | 20,352 | +20.4% | Added |
| PLTR Palantir Technologies Inc. | $23.5M | 0.6% | 201,696 | -12.8% | Trimmed |
| AMAT Applied Materials Inc. | $23.4M | 0.6% | 32,303 | +174.8% | Added |
| GLW Corning Incorporated | $23.1M | 0.6% | 90,456 | +90.8% | Added |
| SOFI SoFi Technologies Inc. | $21.2M | 0.6% | 1,181,860 | +22.0% | Added |
| AMD Advanced Micro Devices Inc. | $21.0M | 0.5% | 36,092 | -86.2% | Trimmed |
| COIN Coinbase Global Inc. | $18.9M | 0.5% | 129,499 | New | New |
| QCOM QUALCOMM Incorporated | $17.4M | 0.5% | 93,992 | New | New |
| IBM International Business Machines Corporation | $16.1M | 0.4% | 57,427 | New | New |
| PFE Pfizer Inc. | $15.4M | 0.4% | 640,977 | -49.4% | Trimmed |
| CHTR Charter Communications Inc. | $14.9M | 0.4% | 104,727 | +67.4% | Added |
| NOK Nokia Corporation Sponsored | $14.4M | 0.4% | 1,081,936 | New | New |
| GE GE Aerospace | $13.9M | 0.4% | 37,191 | New | New |
| NKE Nike Inc. | $13.7M | 0.4% | 333,475 | -16.2% | Trimmed |
| Direxion Shares ETF Trust | $13.1M | 0.3% | 369,781 | +113.7% | Added |
| HUT Hut 8 Corp. | $12.6M | 0.3% | 109,022 | New | New |
| Global X FDS | $12.6M | 0.3% | 287,766 | -38.8% | Trimmed |
| LOW Lowe's Companies Inc. | $12.5M | 0.3% | 56,496 | +1791% | Added |
| BKNG Booking Holdings Inc. | $12.0M | 0.3% | 67,550 | -19.1% | Trimmed |
| LITE Lumentum Holdings Inc. | $11.1M | 0.3% | 12,958 | -75.5% | Trimmed |
| TMUS T-Mobile US Inc. | $10.9M | 0.3% | 64,753 | New | New |
| MRNA Moderna Inc. | $10.8M | 0.3% | 154,558 | -29.6% | Trimmed |
| Select Sector SPDR TR | $10.6M | 0.3% | 233,426 | New | New |
| COHR Coherent Corp. | $10.6M | 0.3% | 26,782 | +156.4% | Added |
Showing the 50 largest of 2,733 share positions. The full filing on SEC EDGAR
Questions about Simplex Trading, LLC
- What does Simplex Trading, LLC own?
- In its Form 13F for Q2 2026, Simplex Trading, LLC reported 9,154 holdings worth $171B. The five largest were NVDA, iShares TR, TLT, GOOGL, SOXX.
- What did Simplex Trading, LLC buy and sell in Q2 2026?
- Simplex Trading, LLC opened 1,043 new positions, added to 869, trimmed 816 and sold out of 923 compared with the quarter before.
- When did Simplex Trading, LLC file its latest 13F?
- Form 13F is due 45 days after each quarter ends. The Q2 2026 report was due August 14, 2026 and was filed August 12, 2026.
From Form 13F filed by Simplex Trading, LLC (SEC CIK 0001488542) for the quarter ended June 30, 2026, via the SEC's Form 13F data sets. Amendments that restate a report replace it; amendments that add holdings are included. View on SEC EDGAR · All funds