CTEK aims to track an underlying index that focuses on the development of technologies and/or equipment relating to: (i) renewable energy production, (ii) residential and commercial energy efficiency and storage, (iii) smart grid implementation, (iv) lithium-ion batteries and/or fuel cells, or (v) preventing/ameliorating the negative environmental effects of pollution. The selection universe is based on FactSet Industries classification for CleanTech and screened for minimum liquidity and trading requirements. The fund selects the top 40 companies ranked by market-cap. The index may include companies from both developed and emerging markets, excluding India. Securities are weighted by market-cap with a single security cap of 6% and aggregate weight of all constituents with a weight greater than 5%, capped at 40%. The index is rebalanced semi-annually.