Stock Taper 
GROUP ONE TRADING, L.P.
Latest 13F filing data - Q2 2026
Holdings
(Top positions)| STOCK | TICKER | SHARES HELD▲ ▼ | VALUE▲ ▼ |
|---|---|---|---|
 Vulcan Materials Company | VMC | 279 | $82.31M |
 Trupanion, Inc. | TRUP | 279 | $6.91M |
 Endava plc | DAVA | 288 | $815K |
 DuPont de Nemours, Inc. | DD | 291 | $39.47M |
 Heartland Express, Inc. | HTLD | 300 | $4.57M |
 Dream Finders Homes, Inc. | DFH | 300 | $5.18M |
 HNI Corporation | HNI | 301 | $12.16M |
 Comfort Systems USA, Inc. | FIX | 307 | $608.46M |
 UMH Properties, Inc. | UMH | 307 | $4.65M |
 Kayne Anderson Energy Infrastructure Fund Inc. | KYN | 308 | $4.26M |
 Dorchester Minerals, L.P. | DMLP | 318 | $8.03M |
 AxoGen, Inc. | AXGN | 325 | $15.01M |
 American Homes 4 Rent | AMH | 326 | $10.93M |
 Build-A-Bear Workshop, Inc. | BBW | 326 | $9.98M |
 Adient plc | ADNT | 327 | $6.01M |
 Copa Holdings, S.A. | CPA | 327 | $50.87M |
 Parsons Corporation | PSN | 330 | $17.29M |
 Columbia Banking System, Inc. | COLB | 341 | $10.93M |
 Shutterstock, Inc. | SSTK | 343 | $4.79M |
 Zenas BioPharma, Inc. | ZBIO | 345 | $8.76M |