| Company | Price | | Change | 1st Jan Change | Capi. (M$) | Poids |
 | AMERICAN WATER WORKS CO.. | 157.02 |  | 0.52% | 3.02% | 28 551 | 10.07% |
 | XYLEM INC. | 102.42 |  | 1.08% | -7.37% | 18 462 | 8.38% |
 | ESSENTIAL UTILITIES, IN.. | 47.06 |  | 0.28% | -1.40% | 12 343 | 5.29% |
 | FERGUSON PLC | 140.32 |  | 0.49% | 10.51% | 28 924 | 5.15% |
 | GEBERIT AG | 521.6 |  | -0.11% | 19.91% | 19 578 | 4.5% |
 | HALMA PLC | 2112.5 |  | -0.12% | 7.14% | 9 892 | 4.35% |
 | TETRA TECH, INC. | 153.88 |  | 0.05% | 5.99% | 8 190 | 4.09% |
 | UNITED UTILITIES GROUP .. | 1081 |  | 0.28% | 8.74% | 9 101 | 3.97% |
 | VEOLIA ENVIRONNEMENT | 27.62 |  | -0.32% | 15.46% | 21 115 | 3.91% |
 | SEVERN TRENT PLC | 2846 |  | 0.07% | 7.28% | 8 858 | 3.9% |