The surge in AI data center development, partially fueled by Bitcoin miners, is now being financed through a significant increase in high-yield bond issuance. This trend highlights how lenders are assessing both the risks and opportunities in this rapidly expanding sector.
Companies involved in AI data center development have collectively raised approximately $33 billion in long-term senior notes over the past year. These companies are paying higher interest rates, ranging from 7% to 9%, compared to traditional utilities and energy firms which typically borrow at 4% to 5%.
Many of these higher-risk borrowers are current or former digital asset mining companies that have strategically shifted focus to AI infrastructure. This indicates that capital remains relatively expensive for this group.
Despite concerns about potential overcapacity, the build-out of AI data centers continues as a major economic trend. This momentum is evident in the strong performance of companies like Nvidia, which reported substantial profit and revenue growth. Concurrently, Bitcoin mining companies are planning to significantly expand their power capacity, with a substantial portion now earmarked for AI workloads, underscoring AI infrastructure as a key strategic priority for the industry.