Stock Taper 
SIMPLEX TRADING, LLC
Latest 13F filing data - Q2 2026
Holdings
(Top positions)| STOCK | TICKER | SHARES HELD▲ ▼ | VALUE▲ ▼ |
|---|---|---|---|
 Kodiak Gas Services, Inc. | KGS | 11.39K | $855.5K |
 Lennar Corporation | LEN | 11.35K | $1.03M |
 HF Sinclair Corporation | DINO | 11.27K | $784.75K |
 Hudbay Minerals Inc. | HBM | 11.24K | $265.38K |
 Costco Wholesale Corporation | COST | 11.16K | $10.44M |
 Horizon Technology Finance Corporation | HRZN | 11.08K | $52.43K |
 ASE Technology Holding Co., Ltd. | ASX | 11.05K | $498.44K |
 Life Time Group Holdings, Inc. | LTH | 10.95K | $447.36K |
 ESCO Technologies Inc. | ESE | 10.94K | $3.83M |
 Amplitude, Inc. | AMPL | 10.86K | $83.09K |
 Fidelity National Information Services, Inc. | FIS | 10.85K | $421.93K |
 Upwork Inc. | UPWK | 10.85K | $90.72K |
 Coherus Oncology, Inc. | CHRS | 10.82K | $15.15K |
 MaxLinear, Inc. | MXL | 10.76K | $1.38M |
 Centrus Energy Corp. | LEU | 10.73K | $1.8M |
 Ecovyst Inc. | ECVT | 10.69K | $133.14K |
 Graham Corporation | GHM | 10.52K | $1.3M |
 Warner Bros. Discovery, Inc. | WBD | 10.52K | $280.49K |
 Ziff Davis, Inc. | ZD | 10.26K | $537.21K |
 PDF Solutions, Inc. | PDFS | 10.21K | $722.41K |