| Société | Cours | | Varia. | Varia. 1 janv. | Capi. (M$) | Poids |
 | AMERICAN WATER WORKS CO.. | 156.49 |  | 0.96% | 2.67% | 28 454 | 10.02% |
 | XYLEM INC. | 104.01 |  | 2.88% | -5.93% | 18 748 | 8.34% |
 | ESSENTIAL UTILITIES, IN.. | 46.73 |  | 1.37% | -2.10% | 12 257 | 5.27% |
 | FERGUSON PLC | 142.34 |  | 2.00% | 12.11% | 29 322 | 5.12% |
 | GEBERIT AG | 516.4 |  | -0.23% | 18.85% | 19 494 | 4.47% |
 | HALMA PLC | 2177.5 |  | 1.37% | 8.81% | 9 995 | 4.33% |
 | TETRA TECH, INC. | 155.52 |  | 2.15% | 4.86% | 8 278 | 4.07% |
 | UNITED UTILITIES GROUP .. | 1049 |  | -0.85% | 6.72% | 8 887 | 3.95% |
 | VEOLIA ENVIRONNEMENT | 27.21 |  | 0.11% | 13.25% | 20 722 | 3.89% |
 | SEVERN TRENT PLC | 2798 |  | -0.64% | 6.22% | 8 726 | 3.88% |