Simplex Trading, LLC 13F holdings
Simplex Trading, LLC reported 2,137 positions with a total reported value of $3.8B as of 2026-06-30, in its 13F for Q2 2026, filed 2026-08-12. Top holdings by reported value: ISHARES TR (11.5%), NVDA NVIDIA CORPORATION (7.9%), GOOGL ALPHABET INC (4.8%), AMZN AMAZON COM INC (2.5%), ORCL ORACLE CORP (2.2%). Against 2026-03-31 it opened 751 new positions and exited 688. Next 13F due by 2026-11-14, the legal deadline 45 days after the quarter ending 2026-09-30.
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Top holdings
25 largest of 2,137 positions · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| ISHARES TR | 2,777,216 | $442.2M | 11.5% |
| NVDA NVIDIA CORPORATION | 1,520,692 | $304.3M | 7.9% |
| GOOGL ALPHABET INC | 515,928 | $183.8M | 4.8% |
| AMZN AMAZON COM INC | 405,198 | $96.6M | 2.5% |
| ORCL ORACLE CORP | 567,292 | $83.1M | 2.2% |
| AAPL APPLE INC | 259,549 | $75.1M | 2.0% |
| MSFT MICROSOFT CORP | 197,528 | $73.7M | 1.9% |
| DIREXION SHARES ETF TRUST | 1,114,866 | $70.5M | 1.8% |
| TSM TAIWAN SEMICONDUCTOR MANUFAC | 147,407 | $70.4M | 1.8% |
| TSLA TESLA INC | 150,665 | $63.4M | 1.7% |
| MU MICRON TECHNOLOGY INC | 52,682 | $60.8M | 1.6% |
| USO UNITED STS OIL FD LP | 490,737 | $52.2M | 1.4% |
| ROUNDHILL ETF TRUST | 674,449 | $47.7M | 1.2% |
| SPY STATE STR SPDR S&P 500 ETF T | 53,496 | $39.9M | 1.0% |
| FCX FREEPORT MCMORAN INC | 626,805 | $39.4M | 1.0% |
| KLAC KLA CORP | 123,044 | $37.1M | 1.0% |
| META META PLATFORMS INC | 60,293 | $34.0M | 0.9% |
| ASML ASML HLDG NV | 16,406 | $32.6M | 0.9% |
| AVGO BROADCOM INC | 84,040 | $31.7M | 0.8% |
| NOW SERVICENOW INC | 291,808 | $29.0M | 0.8% |
| MRVL MARVELL TECHNOLOGY INC | 94,668 | $28.2M | 0.7% |
| GLD SPDR GOLD TR | 76,477 | $28.2M | 0.7% |
| SELECT SECTOR SPDR TR | 381,421 | $27.9M | 0.7% |
| UNH UNITEDHEALTH GROUP INC | 65,879 | $27.4M | 0.7% |
| GLOBAL X FDS | 554,765 | $25.8M | 0.7% |
SEC FORM 13F · Q2 2026 · VALUES AS REPORTED, NOT PRICES
New positions this quarter
Held at 2026-06-30, not at 2026-03-31 · 751 in all · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| MU MICRON TECHNOLOGY INC | 52,682 | $60.8M | 1.6% |
| COIN COINBASE GLOBAL INC | 129,499 | $18.9M | 0.5% |
| QCOM QUALCOMM INC | 93,992 | $17.4M | 0.5% |
| IBM INTERNATIONAL BUSINESS MACHS | 57,427 | $16.1M | 0.4% |
| NOK NOKIA CORP | 1,081,936 | $14.4M | 0.4% |
| GE AEROSPACE | 37,191 | $13.9M | 0.4% |
| HUT HUT 8 CORP | 109,022 | $12.6M | 0.3% |
| TMUS T-MOBILE US INC | 64,753 | $10.9M | 0.3% |
| COST COSTCO WHOLESALE CORPORATION | 11,161 | $10.4M | 0.3% |
| TTWO TAKE-TWO INTERACTIVE SOFTWAR | 40,136 | $10.0M | 0.3% |
| STATE STR SPDR DOW JONES IND | 16,391 | $8.6M | 0.2% |
| ABT ABBOTT LABORATORIES | 91,699 | $8.3M | 0.2% |
| KEEL KEEL INFRASTRUCTURE CORP | 1,366,617 | $7.8M | 0.2% |
| BIDU BAIDU INC | 63,798 | $7.3M | 0.2% |
| FSLR FIRST SOLAR INC | 27,934 | $6.6M | 0.2% |
| ROBINHOOD MKTS INC | 64,451 | $6.5M | 0.2% |
| NET CLOUDFLARE INC | 24,408 | $6.0M | 0.2% |
| UNITED AIRLS HLDGS INC | 43,847 | $6.0M | 0.2% |
| ABNB AIRBNB INC | 40,829 | $5.8M | 0.2% |
| BMY BRISTOL-MYERS SQUIBB CO | 100,185 | $5.8M | 0.2% |
| TEMA ETF TRUST | 185,726 | $5.6M | 0.1% |
| DASH DOORDASH INC | 29,297 | $5.4M | 0.1% |
| OKLO OKLO INC | 103,032 | $5.4M | 0.1% |
| FORD MTR CO | 383,462 | $5.3M | 0.1% |
| DVN DEVON ENERGY CORP NEW | 128,155 | $5.3M | 0.1% |
Sold out
Held at 2026-03-31, gone by 2026-06-30 · 688 in all · reported value as of 2026-03-31
| Holding | Shares 2026-03-31 | Reported value | % of portfolio then |
|---|---|---|---|
| INTC INTEL CORP | 757,722 | $33.4M | 1.0% |
| SLB SLB LIMITED | 547,131 | $28.1M | 0.9% |
| NFLX NETFLIX INC. | 184,871 | $17.8M | 0.6% |
| NVO NOVO-NORDISK A S | 392,803 | $14.4M | 0.4% |
| UNP UNION PAC CORP | 54,003 | $13.1M | 0.4% |
| MS MORGAN STANLEY | 73,071 | $12.0M | 0.4% |
| BABA ALIBABA GROUP HLDG LTD | 66,720 | $8.4M | 0.3% |
| IREN IREN LIMITED | 207,840 | $7.1M | 0.2% |
| DAL DELTA AIR LINES INC | 98,263 | $6.5M | 0.2% |
| ETHA ISHARES ETHEREUM TR | 392,685 | $6.2M | 0.2% |
| LULU LULULEMON ATHLETICA INC | 31,540 | $4.8M | 0.1% |
| PRMB PRIMO BRANDS CORPORATION | 246,087 | $4.6M | 0.1% |
| UPS UNITED PARCEL SVCS INC | 43,120 | $4.2M | 0.1% |
| FHN FIRST HORIZON CORPORATION | 185,831 | $4.2M | 0.1% |
| CCL CARNIVAL CORP | 144,652 | $3.7M | 0.1% |
| RTX RTX CORPORATION | 17,827 | $3.4M | 0.1% |
| LRCX LAM RESEARCH CORP | 16,078 | $3.4M | 0.1% |
| CRWV COREWEAVE INC | 43,901 | $3.4M | 0.1% |
| NU NU HLDGS LTD | 234,510 | $3.4M | 0.1% |
| INTU INTUIT | 7,768 | $3.4M | 0.1% |
| SNOW SNOWFLAKE INC | 21,971 | $3.3M | 0.1% |
| FTI TECHNIPFMC PLC | 46,617 | $3.2M | <0.1% |
| ADBE ADOBE INC | 12,528 | $3.0M | <0.1% |
| ROK ROCKWELL AUTOMATION INC | 8,320 | $3.0M | <0.1% |
| BNO UNITED STS BRENT OIL FD LP | 56,806 | $3.0M | <0.1% |
Biggest increases and decreases
Positions held at both quarter ends, by change in shares · reported value as of 2026-06-30
Increases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| ISHARES TR | 1,352,241 | 2,777,216 | +105.4% | $442.2M |
| AAPL APPLE INC | 39,784 | 259,549 | +552.4% | $75.1M |
| TSLA TESLA INC | 20,177 | 150,665 | +646.7% | $63.4M |
| ROUNDHILL ETF TRUST | 28,928 | 674,449 | +2,231.5% | $47.7M |
| DIREXION SHARES ETF TRUST | 524,997 | 1,114,866 | +112.4% | $70.5M |
| KLAC KLA CORP | 459 | 123,044 | +26,707.0% | $37.1M |
| GOOGL ALPHABET INC | 441,708 | 515,928 | +16.8% | $183.8M |
| FCX FREEPORT MCMORAN INC | 244,754 | 626,805 | +156.1% | $39.4M |
| MSFT MICROSOFT CORP | 136,729 | 197,528 | +44.5% | $73.7M |
| NOW SERVICENOW INC | 96,638 | 291,808 | +202.0% | $29.0M |
| USO UNITED STS OIL FD LP | 329,788 | 490,737 | +48.8% | $52.2M |
| MRVL MARVELL TECHNOLOGY INC | 39,690 | 94,668 | +138.5% | $28.2M |
Decreases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| AMD ADVANCED MICRO DEVICES INC | 260,622 | 36,092 | -86.2% | $21.0M |
| SPY STATE STR SPDR S&P 500 ETF T | 202,806 | 53,496 | -73.6% | $39.9M |
| TSM TAIWAN SEMICONDUCTOR MANUFAC | 351,805 | 147,407 | -58.1% | $70.4M |
| META META PLATFORMS INC | 229,853 | 60,293 | -73.8% | $34.0M |
| UNH UNITEDHEALTH GROUP INC | 287,580 | 65,879 | -77.1% | $27.4M |
| AMZN AMAZON COM INC | 764,884 | 405,198 | -47.0% | $96.6M |
| GLD SPDR GOLD TR | 230,612 | 76,477 | -66.8% | $28.2M |
| ALAB ASTERA LABS INC | 91,866 | 10,006 | -89.1% | $4.8M |
| LITE LUMENTUM HLDGS INC | 52,807 | 12,958 | -75.5% | $11.1M |
| SELECT SECTOR SPDR TR | 813,937 | 381,421 | -53.1% | $27.9M |
| CI THE CIGNA GROUP | 98,203 | 33,324 | -66.1% | $9.2M |
| PFE PFIZER INC | 1,266,685 | 640,977 | -49.4% | $15.4M |
CIK 1488542 · 13F FILINGS ON EDGAR · INFORMATIONAL ONLY
