Golden Finance reports that asset management company Calamos Investments will launch a Bitcoin exchange-traded fund CBOJ with 100% downside protection. The fund protects against risk from Bitcoin price fluctuations by combining U.S. Treasuries with options linked to the CBOE Bitcoin U.S. ETF Index. The CBOJ ETF, which will launch on the Chicago Board Options Exchange on January 22, aims to address Bitcoin’s volatility while providing growth potential.