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Core Scientific declines following disappointing fourth-quarter results.
Riot Platforms exceeded revenue projections as it disclosed earnings for the last quarter of 2025.

Essential details:
- Core Scientific reported fourth-quarter revenue of $79.8 million, falling short of Wall Street projections, and increased its loss to $0.42 per share.
- The company is redirecting its efforts towards hosting and colocation services for high-performance computing and AI, boosting its power capacity by approximately 730 megawatts, which includes a significant expansion into Texas.
- Riot Platforms experienced a notable increase in fourth-quarter revenue to $647.4 million, significantly surpassing expectations, although both its shares and Core Scientific’s remained relatively stable in after-hours trading.
Core Scientific (CORZ), a bitcoin mining and digital infrastructure firm, announced fourth-quarter revenue of $79.8 million for the period ending December 31, compared to $94.93 million the previous year. Consensus estimates projected revenue of $122.08 million, according to LSEG data.
The company recorded a loss of $0.42 per share, compared to an anticipated loss of $0.08 per share.
The disappointing results emerge as bitcoin miners continue to adapt to the April 2024 halving, which halved block rewards and pressured margins throughout the sector. An elevated network hash rate, along with increasing energy and infrastructure costs, has impacted profitability, especially for operators still enhancing their capacity.
Core has been realigning its focus from solely self-mining toward providing hosting and colocation services for high-performance computing clients, including AI applications. CEO Adam Sullivan indicated that the company is committed to this strategy.
“We’re now past the halfway point on our existing builds and scaling our colocation platform into a 1.5 gigawatt pipeline of leasable capacity,” stated Core Scientific CEO Adam Sullivan. “With a multi-geography footprint and proven execution, we’re accelerating RFS timelines across multiple sites to position the company for durable growth.”
As part of this initiative, the company revealed plans to expand into Texas, adding around 430 megawatts of gross power capacity. Additionally, it has increased capacity in other areas by approximately 300 megawatts.
CORZ shares fell by 4.5% in after-hours trading.
In contrast, Riot Platforms (RIOT), a bitcoin mining and data center development entity, reported fourth-quarter revenue of $647.4 million, rising from $376.7 million a year prior. Analysts had forecasted revenue of $157.4 million, which included $136 million from bitcoin mining and $21.3 million from engineering.
RIOT shares remained unchanged in after-hours trading.