The Thornburg Income Builder Opportunities Trust (TBLD) is a mutual fund that focuses on generating income and capital appreciation for its investors. It invests in a diverse range of fixed income securities, including corporate bonds, government bonds, and mortgage-backed securities, as well as dividend-paying stocks. The fund is actively managed and seeks out opportunities in both domestic and international markets. With a long-term investment approach, TBLD aims to provide a steady stream of income while also seeking growth opportunities for its investors.