Bitcoin Miners Raise Billions to Bet on AI and HPC Expansion
17.10.2025 20:00 2 min. read Alexander Zdravkov
Public cryptocurrency mining companies are ramping up fundraising through convertible bonds, marking the largest wave of capital raising in the sector since 2021.
This surge could enable miners to pivot toward AI and high-performance computing (HPC), but it also brings risks of mounting debt and shareholder dilution.
Record Bond Issuances
In 2025, companies like Bitfarms and TeraWulf have announced multi-billion-dollar bond offerings. Bitfarms unveiled a $500 million convertible note due 2031, while TeraWulf proposed a $3.2 billion senior secured note to expand data center operations. Across 15 public mining firms, total debt and convertible note issuances hit $4.6 billion in Q4 2024, dipping below $200 million earlier this year before rebounding to $1.5 billion in Q2 2025.
Unlike the 2021 cycle, where mining rigs were used as loan collateral, today’s convertible bonds shift financial risk from equipment repossession to potential equity dilution. This model gives companies operational flexibility but pressures them to deliver stronger revenues to protect shareholder value.
Opportunities Beyond Mining
Some miners are exploring new revenue streams beyond Bitcoin production. This includes building HPC and AI infrastructure, offering cloud services, or leasing hash power. For example, Bitfarms secured a $300 million loan from Macquarie to fund HPC development at its Panther Creek project. If successful, these ventures could provide more stable long-term income than traditional mining.
The market has responded positively to debt announcements, often sending mining stocks higher as investors anticipate growth. However, if expansion fails to produce sufficient returns, shareholders could face significant dilution, while the high mining difficulty and declining margins add additional pressure.
The sector is effectively testing the limits of financial engineering, balancing growth ambitions with the risks inherent in debt-financed expansion, as it seeks to evolve from purely energy-intensive Bitcoin mining to a more diversified, data-driven business model.
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