| 持股明細(資料日期：2025/05/30) |
| 持股名稱 | 比例 |
| IDEXX Laboratories, Inc. | 4.62% |
| American Water Works Company, Inc. | 4.14% |
| Ferguson Enterprises Inc. | 4.05% |
| Veralto Corporation | 3.99% |
| Ecolab Inc. | 3.89% |
| Roper Technologies, Inc. | 3.84% |
| Xylem Inc. | 3.79% |
| AECOM | 3.78% |
| Waters Corporation | 3.64% |
| Pentair Plc | 3.63% |
| Stantec Inc. | 3.56% |
| Essential Utilities, Inc. | 3.50% |
| Agilent Technologies, Inc. | 3.45% |
| Primo Brands Corporation (Class A) | 3.38% |
| Masco Corporation | 3.27% |
| IDEX Corporation | 3.21% |
| Core & Main, Inc. (Class A) | 3.17% |
| Advanced Drainage Systems, Inc. | 2.92% |
| Mueller Industries, Inc. | 2.87% |
| Tetra Tech, Inc. | 2.36% |
| Badger Meter, Inc. | 2.32% |
| Fortune Brands Innovations Inc. | 2.30% |
| Algonquin Power & Utilities Corp. | 2.26% |
| Watts Water Technologies, Inc. | 2.22% |
| Itron, Inc. | 2.09% |
| Zurn Elkay Water Solutions Corp. | 2.01% |
| A.O. Smith Corporation | 1.90% |
| Mueller Water Products, Inc. | 1.87% |
| Valmont Industries, Inc. | 1.80% |
| Franklin Electric Co., Inc. | 1.67% |
| Cia. de Saneamento Basico do Estado de Sao Paulo - SABESP (ADR) | 1.57% |
| Hawkins, Inc. | 1.56% |
| Lindsay Corporation | 1.30% |
| California Water Service Group | 1.28% |
| American States Water Company | 1.27% |
| H2O America | 1.23% |
| US Dollar | 0.29% |