American Bitcoin Corp (ABC), a Bitcoin mining company backed by the Trump family, reported a $59 million loss in the fourth quarter, as revealed in its latest financial report. The company, co-founded by Eric Trump and headquartered in Miami, has seen its stock price plummet nearly 90% from its September 2025 peak, largely due to the severe cryptocurrency market downturn. ABC's strategy of focusing solely on Bitcoin mining and accumulation, while competitors pivoted towards AI infrastructure, has contributed to its financial challenges. The decline in Bitcoin's price from $126,000 to approximately $70,000 led to a significant write-down of the company's Bitcoin reserves, resulting in an unrealized loss of $227 million for the year.