Bitcoin Mining Firm MARA Sees Stock Surge After Announcing Joint Venture

Bitcoin mining company MARA experienced a significant stock increase of over 16% in after-hours trading on Thursday. According to BlockBeats, this rise followed the company's announcement of a $1.7 billion net loss for the fourth quarter of 2025 and the establishment of a joint venture with Starwood Capital to develop AI-focused data centers. MARA's revenue for the fourth quarter of 2025 fell by 6% to $202.3 million, compared to $214.4 million in the same period the previous year. The company reported a net loss of $1.7 billion, a stark contrast to the $528.3 million net profit recorded in the fourth quarter of the previous year. This significant change was primarily attributed to a roughly 30% decline in Bitcoin prices during the quarter, leading to a $1.5 billion negative adjustment in the fair value of digital assets. The adjusted EBITDA was negative $1.49 billion, compared to a positive $796 million in the same period last year.