The fund is an actively managed exchange-traded fund (ETF) that does not seek to replicate the performance of a specified index. The fund will, under normal circumstances, invest at least 80% of its net assets (plus borrowings for investment purposes, if any) in equity securities of companies in developed markets (including the U.S.) and emerging markets (including frontier market countries) that, in the view of Calamos Advisors LLC's (Calamos Advisors) investment team (the Team), have above average growth potential and meet the sustainable investment criteria.