The Fund's investment objective is to replicate the performance of the WORLD WATER INDEX CW index (see the Reference indicator Index section), while minimizing as far as possible the tracking error between the Fund's performance and that of the WORLD WATER INDEX CW index. The tracking error objective calculated over a period of 52 weeks is less than 1%. If the tracking error exceeds 1% nonetheless, the objective is to remain below 5% of the volatility of the WORLD WATER INDEX CW index.