Bitcoin miners spend $5.1B on AI infrastructure while generating only $341M in revenue

Public Bitcoin miners are aggressively pivoting toward artificial intelligence and high-performance computing, spending $5.11 billion on capital assets in the first half of 2026 while generating only $341.2 million in directly reported AI revenue. This 15-to-1 spending-to-revenue gap highlights the massive upfront costs of converting power plants into AI data centers. To fund this transition, major miners like Riot Platforms and MARA Holdings are selling substantial portions of their Bitcoin treasuries, creating a structural supply-side headwind that, alongside $389.7 million in weekly ETF outflows, has kept Bitcoin prices range-bound.

Bitcoin ETF outflows

• ▪Fidelity's Wise Origin Bitcoin Fund led the weekly ETF outflows with $153.2 million in withdrawals, while Grayscale's legacy trust GBTC shed $88.3 million.
• ▪US spot Bitcoin ETFs experienced net outflows of $389.7 million for the week ended August 14, 2026, marking their steepest seven-day exodus in six weeks.
• ▪Grayscale's Bitcoin Mini Trust bucked the outflow trend by attracting $75.98 million in net inflows for the week ended August 14, 2026.

Miner AI infrastructure spending

• ▪A group of 15 Bitcoin miners and AI data-center companies spent a combined $30.7 billion on capital assets in their latest 2026 reporting periods, up 42.6% from the $21.53 billion spent in 2025.
• ▪Nine comparable public Bitcoin miners spent $5.11 billion on capital assets during the first half of 2026 while generating only $341.2 million in directly reported AI and HPC revenue.

Miner Bitcoin selling pressure

• ▪Public Bitcoin miners collectively reduced their Bitcoin holdings from approximately 127,000 BTC at the start of 2026 to roughly 99,000 BTC by August 2026.
• ▪MARA Holdings sold $1.5 billion of Bitcoin during the first quarter of 2026 to fund its digital infrastructure expansion and AI pivot.
• ▪Riot Platforms sold 4,300 BTC in Q2 2026 and 3,778 BTC in Q1 2026, reducing its Bitcoin treasury to 11,380 BTC while reporting a $237 million quarterly loss.

AI revenue growth acceleration

• ▪HIVE's HPC revenue increased 94% to $19.5 million during its 2026 financial year, though Bitcoin mining remained its primary revenue source.
• ▪Core Scientific reported $136.7 million in colocation revenue for Q2 2026, up from $77.5 million in Q1 2026, while spending $797.5 million in capital expenditures.
• ▪The nine comparable Bitcoin miners generated $205.8 million in AI and HPC revenue in Q2 2026, representing a 52% increase from the preceding quarter.

Infrastructure conversion costs

• ▪TeraWulf's high-performance computing leasing revenue overtook its Bitcoin mining revenue for the first time during the first quarter of 2026.
• ▪Riot Platforms signed a 20-year contract worth $9.1 billion to supply 191 megawatts of capacity at its Rockdale, Texas campus to AI company Anthropic.
• ▪Converting mining facilities into AI-ready capacity requires substantial upfront investments in substations, buildings, cooling systems, networking equipment, and GPUs.

Capital expenditure ratios

• ▪CoinShares renamed and expanded its WGMI ETF to the CoinShares Bitcoin Mining and Digital Power ETF, holding $222.4 million in assets across 29 digital economy holdings.
• ▪The $5.11 billion capital expenditure against $341.2 million in AI and HPC revenue during H1 2026 represents a 15-to-1 capex-to-revenue ratio for the nine comparable miners.