| 持股明細(資料日期：2025/08/29) |
| 持股名稱 | 比例 |
| Ferguson Enterprises Inc | 9.46% |
| Xylem Inc/NY | 7.95% |
| Ecolab Inc | 7.79% |
| American Water Works Co Inc | 7.49% |
| Roper Technologies Inc | 6.89% |
| Core & Main Inc | 4.41% |
| AECOM | 4.24% |
| A O Smith Corp | 4.14% |
| Pentair PLC | 4.05% |
| Veralto Corp | 3.92% |
| Advanced Drainage Systems Inc | 3.91% |
| IDEX Corp | 3.39% |
| Mueller Industries Inc | 3.36% |
| Waters Corp | 3.23% |
| Tetra Tech Inc | 3.04% |
| Essential Utilities Inc | 2.72% |
| Mueller Water Products Inc | 2.59% |
| Itron Inc | 2.51% |
| Valmont Industries Inc | 2.23% |
| Watts Water Technologies Inc | 2.07% |
| Badger Meter Inc | 1.71% |
| Zurn Elkay Water Solutions Corp | 1.70% |
| Franklin Electric Co Inc | 1.20% |
| Cia de Saneamento Basico do Estado de Sao Paulo SABESP ADR | 0.97% |
| California Water Service Group | 0.73% |
| American States Water Co | 0.70% |
| Stantec Inc | 0.68% |
| Hawkins Inc | 0.67% |
| H2O America | 0.55% |
| Lindsay Corp | 0.43% |
| Middlesex Water Co | 0.39% |
| Energy Recovery Inc | 0.34% |
| Consolidated Water Co Ltd | 0.19% |
| NWPX Infrastructure Inc | 0.16% |
| Gorman-Rupp Co/The | 0.12% |
| York Water Co/The | 0.09% |