The index reflects the performance of a selection of companies that, in aggregate, offer broad exposure to publicly-traded developed- and emerging-market infrastructure companies, including U. S. companies, as defined by STOXX Ltd. (the "index provider") pursuant to its index methodology. Under normal circumstances, the fund will invest at least 80% of its total assets in the securities of the index and in ADRs and GDRs based on the securities in the index.