Bitcoin Hashrate Drops as Miners Pivot to AI With Wall Street Backing
US-Israel military strike on Iran wiped 6% of Bitcoin's global hashrate overnight - and the miners left standing are quietly selling their Bitcoin to build AI data centers instead.
Key Takeaways
- Bitcoin’s total hashrate fell nearly 6% following the US-Israel joint military operation in Iran on February 28, removing an estimated 6-8% of global mining capacity in weeks.
- American Bitcoin backed by Donald Trump now holds 7,000 BTC
- MARA Holdings sold 15,133 BTC for approximately $1.1 billion to fund an AI infrastructure pivot.
- JPMorgan and Morgan Stanley have together committed $1 billion in debt financing to Core Scientific’s transition from Bitcoin mining to AI data center colocation.
Bitcoin’s mining industry entered March 2026 under simultaneous pressure from two directions: a geopolitical shock that removed a significant share of global hashrate overnight, and a structural shift in how the industry’s largest players are choosing to deploy their infrastructure. The result is a sector in the middle of a genuine identity crisis – one that Wall Street is actively financing in a new direction.
The Iran Shock: When Geopolitics Hit the Hashrate
On February 28, the United States and Israel launched a joint special military operation in Iran – Operation Epic Fury. Within weeks, the impact on Bitcoin’s network was measurable and significant.
Iran accounts for an estimated 6-8% of global Bitcoin hashrate, according to Bloomberg crypto and digital assets strategist Dushyant Shahrawat. What makes that figure particularly unusual is the structure of Iran’s mining industry: approximately 70% of its mining activity is conducted by the military, meaning the operation’s disruption to energy infrastructure and the diversion of military priorities to defense hit mining capacity directly and immediately.
The Blockchain.com hashrate chart covering April 2025 through March 2026 makes the damage visible. Bitcoin’s total hashrate climbed steadily through the first half of 2025, peaking above 120,000 TH/s around October before entering a gradual decline.
That decline accelerated sharply in early 2026 – with hashrate dropping from approximately 110,000 TH/s in December to around 100,000 TH/s by late March, the lowest reading in nearly a year. The nearly 6% contraction following Operation Epic Fury represents the steepest single-cause drop in that entire period.
What the chart also shows is a growing and troubling divergence between hashrate and price. Through mid-2025, Bitcoin’s market price and total hashrate moved broadly in the same direction – miners were deploying more capacity as price justified the investment. From October 2025 onward, that relationship broke down. Price peaked and began declining while hashrate held elevated – meaning miners were committing more computational power into a falling price environment. By early 2026, both lines are declining together, but price has fallen faster and further, compressing miner margins across the board.
The hashrate drop does not, by itself, threaten the network’s security. Bitcoin’s difficulty adjustment mechanism will recalibrate downward to compensate, making it easier for remaining miners to find blocks. But the episode exposed something investors had underweighted: a meaningful portion of global Bitcoin mining capacity sits inside a single country’s military infrastructure, and that concentration carries geopolitical risk that no difficulty adjustment can fully absorb.
How Did the Industry Respond?
Against that backdrop, the most consequential development in Bitcoin mining in March 2026 is not the hashrate drop. It is the accelerating pivot by the industry’s largest players away from Bitcoin mining and toward AI infrastructure – and the speed at which Wall Street is financing that transition.
MARA Holdings, formerly Marathon Digital and one of the most prominent Bitcoin accumulation advocates in the mining sector, executed the most dramatic reversal. The company sold 15,133 BTC – approximately $1.1 billion – over three weeks to repurchase $1 billion in convertible debt and fund an AI infrastructure buildout. The sale represented a clean break from its long-held accumulation policy, a strategy it had maintained through multiple market cycles. The message was unambiguous: the economics of holding Bitcoin on a mining company’s balance sheet no longer justify the capital structure risk when AI infrastructure offers a more predictable revenue model.
Core Scientific’s trajectory tells the same story with different numbers. The company – which emerged from bankruptcy in 2024 – closed a $500 million commitment from JPMorgan Chase according to information from the Street under its existing credit facility on March 23, following a $500 million tranche from Morgan Stanley on March 5. Total funded commitments now stand at $1 billion, structured at SOFR plus 250 basis points – an effective rate of roughly 6–7.8%. Proceeds are directed toward data center buildout, equipment, real estate, and power capacity across facilities in Texas, Georgia, and North Dakota, with over 1,300 megawatts of contracted power already secured.
The speed of that financing is significant. Two Tier 1 banks providing $1 billion in non-dilutive debt to a company that exited bankruptcy just over a year ago – within 18 days of each other – is not routine capital markets activity. It reflects a considered institutional bet that the mining-to-AI infrastructure pipeline is real, bankable, and worth financing at scale. Core Scientific plans to liquidate most of its remaining Bitcoin reserves in 2026 to fund the transition fully.
Cipher Mining added another data point to the same trend. According to data from CoinDesk the company signed a new 15-year lease for a data center campus with an investment-grade hyperscale tenant, building on existing agreements with Amazon Web Services and Fluidstack signed in 2025. Cipher also closed a syndicated revolving loan of up to $200 million – with an option to expand by a further $50 million – to support working capital and growth.
Not every player is moving in the same direction. While several public miners are pivoting toward AI infrastructure, others are doubling down on Bitcoin accumulation. American Bitcoin (ABTC), backed by the Trump family, recently disclosed that its Bitcoin reserves have reached 7,000 BTC, roughly tripling since its Nasdaq debut in September 2025.
Eric Trump, the company’s co-founder and chief strategy officer, described the approach as an “accumulation machine,” combining discounted mining with disciplined buying. The strategy stands in direct contrast to peers like MARA Holdings and Core Scientific, which are reducing Bitcoin exposure to fund infrastructure pivots.
The divergence highlights a growing split within the mining industry: one path focused on transforming into AI and data center operators, and another still anchored in Bitcoin accumulation as the core business model.
What This Means for Bitcoin Mining
The industry that emerges from March 2026 looks structurally different from the one that entered it. The companies that built their business models around Bitcoin accumulation are unwinding those positions and redeploying capital into infrastructure that generates revenue regardless of Bitcoin’s price. The companies still committed to pure-play mining are doing so in a network that just lost a meaningful share of its hashrate, into a price environment already shaped by geopolitical uncertainty.
That does not make Bitcoin mining obsolete. The network’s difficulty adjustment will compensate for Iran’s absence, margins for well-capitalized miners with cheap power will remain viable, and a Bitcoin price recovery would change the calculus quickly. But the directional signal from the industry’s largest and most sophisticated operators is clear: when Wall Street offers $1 billion to finance your pivot away from mining, the rational move is to take the money.
The information provided in this article is for educational purposes only and does not constitute financial, investment, or trading advice. Coindoo.com does not endorse or recommend any specific investment strategy or cryptocurrency. Always conduct your own research and consult with a licensed financial advisor before making any investment decisions.
Alexander Zdravkov is a person who always looks for the logic behind things. He has more than 3 years of experience in the crypto space, where he skillfully identifies new trends in the world of digital currencies. Whether providing in-depth analysis or daily reports on all topics, his deep understanding and enthusiasm for what he does make him a valuable member of the team.
