As the smoke gradually cleared from the launch of spot Bitcoin (BTC) exchange-traded funds (ETFs) in the US, their industrywide implications are now being felt, especially by Bitcoin miners. The arrival of these proxy Bitcoin instruments drove investors away from BTC mining firms like Marathon Digital (MARA). It was made worse by the "sell the news" event that took effect in the wake of the spot ETFs' official approval by the US Securities and Exchange Commission (SEC). Marathon Digital remains unfazed by these, however, as it went on with its initial plan of acquiring two additional Bitcoin mining sites.