CBOL was created on 2025-10-14 by Calamos. The fund's investment portfolio concentrates primarily on downside hedge alternatives. CBOL is an actively managed fund-of-funds that invests in an equal-weighted, laddered portfolio of Calamos Bitcoin Structured Alt Protection ETFs. Each underlying ETF provides capped gains and 100% downside hedge to spot bitcoin (BTC) over a one-year outcome period.