The investment seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the MVIS Global Low Carbon Energy Index. The fund normally invests at least 80% of its total assets in stocks of low carbon energy companies. Such companies may include small- and medium-capitalization companies and foreign issuers. ?Low carbon energy companies? refers to companies primarily engaged in renewable energy, including renewable energy production, alternative fuels, electric vehicles, and related technologies and building materials (such as advanced batteries). It is non-diversified.