Bitcoin Miners MARA and CleanSpark Report Double-Digit Revenue Drops Amid AI Shift

Two major Bitcoin mining companies, MARA Holdings and CleanSpark, have reported significant revenue drops in their latest financial reports. MARA Holdings posted Q2 2026 revenue of $174.9 million, a 27% year-over-year decline, while CleanSpark saw its revenue fall by 30.5% to $138 million. Both companies attributed the decrease in revenue to fair-value losses on their digital assets, which contributed to net losses of $611.3 million for MARA and $239.8 million for CleanSpark.

The decline in revenue reflects growing pressure on the operating margins of traditional mining companies. The two firms are also diversifying into high-performance computing and artificial intelligence workloads, with significant investments in physical infrastructure to support these new initiatives. MARA's treasury dropped 29% to 35,577 BTC, valued at approximately $2.1 billion, while CleanSpark holds the eleventh position globally with a reserve of 13,924 BTC.

CleanSpark has an asset portfolio exceeding 1.8 gigawatts of contracted power, land, and data center capacity, with cash reserves of $202.6 million and total assets of $2.7 billion. The company is seeking to monetize its grid assets through long-term commercial agreements, such as the 20-year lease agreement in Sandersville valued at $6.6 billion.