The fund is an exchange traded fund (ETF) that aims to track the performance of the S&P Global Water 50 Index as closely as possible. The ETF invests in physical index securities. The S&P Global Water 50 Index offers exposure to the 50 largest and most liquid listed companies globally that are involved in water related businesses. The index is weighted by modified market capitalisation. iShares ETFs are funds managed by BlackRock. They are transparent, cost-efficient, liquid vehicles that trade on stock exchanges like normal securities. iShares ETFs offer flexible and easy access to a wide range of markets and asset classes.