MARA Holdings

Type: Bitcoin Miner / Digital Infrastructure

MARA Holdings (formerly Marathon Digital) is the largest publicly-traded US Bitcoin miner by hashrate. It operates at 66.4 EH/s with energy efficiency of 18.6 J/TH and holds approximately 38,700 BTC as a treasury asset. In 2026, MARA is pivoting toward AI/HPC infrastructure as a second revenue stream alongside mining. Note: the specific hashrate/efficiency/BTC-holding figures below are not present in the sole registered source (CoinTelegraph, which names MARA only generically in a list of AI-pivoting miners) — full-text verified 2026-07-22. Origin of these figures is unconfirmed; treat as carried-forward from an earlier compile pass.

Mining Operations

• Hashrate: 66.4 EH/s (Q4 2025) — unverified against registered source
• Energy efficiency: 18.6 J/TH — unverified against registered source
• BTC treasury: ~38,700 BTC — unverified against registered source

AI/HPC Pivot

• Strategic agreement with Starwood to develop AI/HPC infrastructure on power-rich sites — unverified against registered source
• Acquired controlling interest in Exaion (AI/secure cloud) — unverified against registered source
• Planned acquisition of Long Ridge Energy & Power (505 MW gas-fired plant, 1,600+ acres in Ohio) — unverified against registered source
• MARA ranks among the top-10 corporate BTC holders alongside Riot, Hut 8, and CleanSpark. Evidence: moderate (CoinTelegraph)

Mentioned In

• Bitcoin Mining / ASIC — Largest US public miner; HPC pivot exemplar

Changelog

• 2026-07-22 — Full-text fetch of bitcoin-mining-ai-pivot-2026 completed; the article names MARA only generically (no hashrate/efficiency/BTC-holding/Starwood/Exaion/Long Ridge detail) — flagged all specific figures as unverified against the registered source; added the one genuinely-supported claim (top-10 BTC holder ranking)