SMOG seeks to track the performance of an index of alternative and renewable energy companies (like solar, wind, geothermal, hydro, hydrogen, waste, and biofuels). To be included in the fund, 50% of a companys revenue must come from renewable sources of energy, the development of related technologies, or sustainable building products that reduce energy consumption. The fund may also include companies engaged in electric vehicles and related technologies, air purification, smart grid, and advanced battery technologies. The index selects and weights up to 25 companies based on free-floating market cap, and caps each issuer at 8%. Prior to July 9, 2019, the fund was named VanEck Global Alternative Energy ETF with the ticker GEX. Also, prior to April 26, 2021, the fund tracked the Ardour Global Index.
