Stock Taper 
GROUP ONE TRADING, L.P.
Latest 13F filing data - Q2 2026
Holdings
(Top positions)| STOCK | TICKER | SHARES HELD▲ ▼ | VALUE▲ ▼ |
|---|---|---|---|
 ICON Public Limited Company | ICLR | 893 | $155.12M |
 Quanta Services, Inc. | PWR | 893 | $643M |
 Equifax Inc. | EFX | 888 | $140.94M |
 Ambiq Micro, Inc. | AMBQ | 883 | $77.97M |
 Rafael Holdings, Inc. | RFL | 865 | $2.84M |
 Kilroy Realty Corporation | KRC | 856 | $32.07M |
 Magnolia Oil & Gas Corporation | MGY | 854 | $21.84M |
 Mastercard Incorporated | MA | 852 | $437.59M |
 The Macerich Company | MAC | 851 | $21.44M |
 Ares Commercial Real Estate Corporation | ACRE | 845 | $3.8M |
 Allegiant Travel Company | ALGT | 841 | $98.9M |
 Horizon Technology Finance Corporation | HRZN | 833 | $3.94M |
 ITT Inc. | ITT | 831 | $164.34M |
 Precision Drilling Corporation | PDS | 822 | $63.02M |
 Eagle Materials Inc. | EXP | 819 | $184.28M |
 ACADIA Pharmaceuticals Inc. | ACAD | 804 | $20.34M |
 Permianville Royalty Trust | PVL | 800 | $1.35M |
 Avista Corporation | AVA | 800 | $32.73M |
 MiniMed Group, Inc. Common Stock | MMED | 800 | $11.96M |
 Denali Therapeutics Inc. | DNLI | 776 | $19.96M |