The Calamos Global Total Return Fund is a U.S.-domiciled, balanced, closed-end mutual fund that originated from Calamos Investments LLC and is overseen by Calamos Advisors LLC. Established on March 30, 2004, this fund strategically allocates capital across international public equity and fixed-income markets. Its investment objective is to identify opportunities in securities issued by companies spanning a diverse range of sectors. The portfolio predominantly comprises common stocks, convertible bonds, and high-yield corporate debt instruments. To construct its holdings, the fund integrates thorough fundamental research with systematic quantitative analysis. The Calamos Global Total Return Fund measures its investment performance against the MSCI World Index.