PIO provides viable exposure to the broader global water market. The fund's (ironically appropriate) liquidity-weighting scheme produces a concentrated portfolio that only loosely resembles our market-cap-weighted benchmark. PIO is dominated by large- to midcap firms that create products that conserve and purify water for homes, businesses, and industries. Also, only companies participating in the Green Economy as determined by SustainableBusiness.com LLC are eligible for inclusion. The index currently limits weighting in both the country and issuer level, to ensure diversification between constituents. Lastly, it is important to note that the fund uses a full replication method to track the underlying index. Rebalancing is done quarterly while reconstitution is done annually.
