The iShares MSCI USA CTB Enhanced ESG UCITS ETF USD (Dist) seeks to track the MSCI USA ESG Enhanced Focus CTB index. The MSCI USA ESG Enhanced Focus CTB index tracks the largest US companies. The index is designed to maximize exposure to positive environmental, social and governance (ESG) factors while reducing the carbon equivalent exposure to carbon dioxide (CO2) and other greenhouse gases (GHG) as well as minimising their exposure to potential emissions risk of fossil fuel reserves.