TNGY seeks total return by investing across the energy sector through equities and debt securities, including companies involved in fossil fuels, utilities, renewables, and energy infrastructure. Investments may shift between equities and fixed-income securities, including MLPs, common and preferred stocks, as well as both investment-grade and high-yield bonds. Allocation between the two asset classes is based on the adviser's outlook on market, economic, and political conditions. Up to 50% of assets may be allocated to debt, and exposure may include foreign securities such as ADRs and Yankee bonds. The fund also employs yield-enhancing strategies such as covered call writing and may utilize derivatives and hedging tools to manage interest rate, market, and currency risks. Holdings may include restricted securities, capped at 15%. The fund is structured as an RIC to avoid K-1s and double taxation. Before June 16, 2025, TNGY was a mutual fund called The Tortoise Energy Infrastructure and Income Fund before converting to an ETF structure, starting with $536.04 million in assets.