PANews reported on June 9 that according to an official announcement from Cboe, the Chicago Board Options Exchange recently launched the first set of covered call option indices based on spot Bitcoin ETFs. The series includes two indices, BXGBTCA and BXGBTCT, which track the performance of the at-the-money and 20% out-of-the-money call option covered strategies of Grayscale Bitcoin Trust ETF (GBTC). The new product provides investors with tools to manage Bitcoin risk exposure by combining synthetic long GBTC with the strategy of selling call options. This launch is Cboe's attempt to introduce traditional option income strategies into the digital asset market. The index does not directly hold Bitcoin but tracks it through GBTC option contracts.