Coin World News reports that Calamos Investments is launching a Bitcoin ETF with 100% downside protection. According to information released by the company, this ETF, named CBOJ, will debut on January 22 at the Chicago Options Exchange, aiming to address the volatility of Bitcoin while providing growth potential. It is described that this protection is achieved by combining U.S. Treasury options linked to the CBOE Bitcoin U.S. ETF Index. This structure offers a regulated and transparent way to gain exposure to Bitcoin while minimizing risk.