BATT invests in advanced battery materials and technology companies globally. A committee selects the components of the fund from a pool of eligible companies. To qualify for inclusion in the selection pool, companies must generate at least 50% of their revenue from the mining, exploration, production, development, processing, or recycling of lithium, cobalt, nickel, manganese, or graphite. Also, companies that hold 10% or more of the global market share for advanced battery materials and report their primary source of revenue as such are also eligible. Alternatively, companies that derive 90% of their revenue from the development and production of electric vehicles can also be included. Index components are weighted by their market-cap, up to a maximum initial weight of 7%. Industry weight to automobiles and components cannot exceed 20% of the total index weight. Prior to October 12,2020, the fund was actively managed and was named Amplify Advanced Battery Metals and Materials ETF.