Soluna Holdings, Inc. - 2025 Annual Performance Review

I’ve put together this guide to help you understand how Soluna Holdings performed this year. We’ll skip the dense legal filings and focus on how the business works, how they make money, and what you should watch.

1. What does this company do?

Soluna is a hybrid tech company that acts as a specialized landlord for high-powered computers. They build data centers that provide the electricity and space needed for two main things: Bitcoin mining and High-Performance Computing (HPC), which powers AI.

Their strategy, "Renewable Computing™," is unique. They build data centers next to wind or solar farms to capture "extra" power that the grid doesn't need. They also use software called MaestroOS™ to monitor power prices, allowing them to decide when to run their machines and when to get paid to "pause" operations. In 2025, they operated 166 megawatts (MW) of capacity, with plans to add over 300 MW more.

2. Financial Performance & Health

Soluna is currently in a "growth-at-all-costs" phase, meaning they are spending heavily to build out their infrastructure.

• Revenue Mix: They are working to diversify away from the volatile price of Bitcoin. In 2025, their "Bitcoin Hosting" business made up 57% of revenue, up from 50% in 2024. Total revenue reached $28.4 million, a 48.7% increase from 2024.
• The "Cash" Situation: By the end of 2025, the company held about $4.2 million in cash. They frequently raise money by taking on debt and issuing new shares to fund projects like "Project Dorothy 2" and "Project Kati." The number of shares increased by 35% this year, which reduces your ownership percentage and your share of future profits.

3. Major Wins and Challenges

• The Pivot: The company is aggressively moving toward AI and HPC. They are building infrastructure for these sectors, aiming for 40% of their revenue to come from AI/HPC by the end of 2026.
• Customer Concentration: In 2025, two customers provided 59% of their hosting revenue. While they successfully replaced a major customer who left in 2024, the business remains sensitive to the loss of any single large tenant. When that previous tenant left, the company borrowed $12 million to maintain operations.

4. Key Risks

• Dilution: Because they sell new shares to raise cash, your percentage of ownership in the company likely shrinks. It is important to monitor the "shares outstanding" count in their future reports.
• Energy Dependency: Their model relies on access to cheap electricity. If energy prices spike or grid rules change, their profit margins could be significantly impacted.
• Debt: They owe over $45 million in long-term debt and notes. Interest payments currently consume nearly 20% of their gross profit. If their business growth slows, these costs could create a cash crisis.

5. Future Outlook

Soluna is betting on the AI boom, aiming to become the "plumbing" for future computing. Management has set a goal of 500 MW of capacity by 2027, though this expansion requires over $150 million in new funding.

Bottom Line: This is a speculative investment. The company has a clear vision and is growing rapidly, but they are burning cash to build their infrastructure. When deciding whether to invest, weigh their AI potential against their high debt levels and the likelihood of future share dilution.