The Roundhill Alerian LNG ETF (LNGG) offers investment exposure to companies with significant involvement in the liquefied natural gas (LNG) industry. Its underlying index encompasses a global selection of firms, including both specialized pure-play entities and more diversified companies, which operate across four primary business segments: liquefaction, LNG shipping, regasification, and integrated LNG activities. For non-pure-play companies, the fund may invest if they generate substantial revenues, have significant R&D investments, or conduct material business operations within the LNG sector.