| 持股明細(資料日期：2025/09/30) |
| 持股名稱 | 比例 |
| Waters Corp | 8.01% |
| Ecolab Inc | 7.97% |
| Ferguson Enterprises Inc | 7.83% |
| Roper Technologies Inc | 7.64% |
| American Water Works Co Inc | 6.30% |
| Mueller Industries Inc | 4.25% |
| AECOM | 4.20% |
| Xylem Inc/NY | 4.20% |
| Pentair PLC | 4.15% |
| A O Smith Corp | 4.15% |
| Veralto Corp | 4.05% |
| IDEX Corp | 3.99% |
| Advanced Drainage Systems Inc | 3.72% |
| Core & Main Inc | 3.35% |
| Itron Inc | 3.03% |
| Essential Utilities Inc | 2.94% |
| Valmont Industries Inc | 2.78% |
| Badger Meter Inc | 2.70% |
| Tetra Tech Inc | 2.49% |
| Watts Water Technologies Inc | 2.07% |
| Zurn Elkay Water Solutions Corp | 1.53% |
| Hawkins Inc | 1.24% |
| Mueller Water Products Inc | 1.20% |
| Franklin Electric Co Inc | 0.96% |
| Cia de Saneamento Basico do Estado de Sao Paulo SABESP ADR | 0.93% |
| Stantec Inc | 0.75% |
| Lindsay Corp | 0.68% |
| American States Water Co | 0.65% |
| California Water Service Group | 0.59% |
| H2O America | 0.46% |
| Middlesex Water Co | 0.30% |
| Energy Recovery Inc | 0.24% |
| Invesco Government & Agency Portfolio | 0.19% |
| Consolidated Water Co Ltd | 0.16% |
| York Water Co/The | 0.12% |
| NWPX Infrastructure Inc | 0.10% |
| Gorman-Rupp Co/The | 0.10% |