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15 May 2026, 09:25

Bitcoin Miner Iren Limited Raises $3 Billion Through Convertible Note Offering

BitcoinWorld Bitcoin Miner Iren Limited Raises $3 Billion Through Convertible Note Offering Nasdaq-listed Bitcoin mining company Iren Limited, formerly known as Iris Energy, has completed a $3 billion convertible note offering, marking one of the largest capital raises in the cryptocurrency mining sector this year. The company announced that the initial offering of $2.6 billion was increased by an additional $400 million through the full exercise of an over-allotment option, reflecting strong investor demand. Details of the Convertible Note Offering Convertible notes are debt instruments that can be converted into equity shares at a predetermined price, offering investors potential upside if the company’s stock performs well. Iren plans to use the net proceeds from the offering for general corporate purposes, including capital expenditures, working capital, and potential acquisitions. Additionally, a portion of the funds will be allocated to call option transactions, which are financial instruments used to manage dilution and hedge against stock price movements. The company did not disclose the specific interest rate or conversion terms in its initial announcement, but such offerings typically carry a coupon rate below market rates for traditional debt, given the conversion feature. The oversubscription of the offering suggests confidence among institutional investors in Iren’s business model and the broader Bitcoin mining industry. Context and Market Implications Iren’s capital raise comes at a time when the Bitcoin mining industry is navigating significant changes. The most recent Bitcoin halving event, which occurred in April 2024, reduced the block reward for miners from 6.25 BTC to 3.125 BTC, effectively cutting the daily revenue for miners in half. This has increased pressure on mining companies to secure low-cost energy, improve operational efficiency, and access capital markets to fund expansion and upgrade aging hardware. Iren, which rebranded from Iris Energy in 2024, operates Bitcoin mining facilities in the United States and Canada, with a focus on utilizing renewable energy sources. The company has positioned itself as a low-cost producer, leveraging long-term power purchase agreements to stabilize energy expenses. The $3 billion in new capital could allow Iren to expand its hashrate capacity, acquire more efficient mining rigs, and potentially pursue strategic acquisitions of smaller miners facing financial strain. What This Means for the Bitcoin Mining Sector The successful completion of this offering signals that capital markets remain open to well-managed Bitcoin mining companies, even amid regulatory uncertainty and price volatility. It also highlights a trend of consolidation in the sector, where larger, publicly traded miners are raising capital to scale operations while smaller, privately held miners struggle to secure financing. Investors and industry observers will be watching how Iren deploys the funds and whether the company can maintain its competitive cost structure. The use of call option transactions indicates a sophisticated approach to capital management, potentially reducing the dilutive impact of the convertible notes on existing shareholders. Conclusion Iren Limited’s $3 billion convertible note offering is a significant development in the Bitcoin mining industry, demonstrating strong investor appetite for exposure to the sector through publicly traded companies. The funds are expected to support Iren’s growth strategy, including capacity expansion and operational improvements, as the industry adapts to post-halving economics. The transaction underscores the increasing financialization and institutionalization of Bitcoin mining. FAQs Q1: What is a convertible note offering? A convertible note is a type of debt instrument that can be converted into a predetermined number of the issuer’s equity shares, typically at the option of the investor. It allows companies to raise capital while offering investors potential upside if the company’s stock price increases. Q2: How will Iren use the $3 billion raised? Iren plans to use the proceeds for general corporate purposes, including capital expenditures, working capital, and call option transactions. This may include expanding mining capacity, purchasing new equipment, and managing dilution from the convertible notes. Q3: Why is this capital raise significant for the Bitcoin mining industry? This is one of the largest convertible note offerings in the Bitcoin mining sector. It indicates strong institutional investor confidence in Iren’s business model and the industry’s long-term prospects, especially as miners face reduced block rewards following the 2024 Bitcoin halving. This post Bitcoin Miner Iren Limited Raises $3 Billion Through Convertible Note Offering first appeared on BitcoinWorld .

15 May 2026, 08:30

Miner Weekly – The Great Bitcoin Mining Power Shift: Who Won Q1?

Public Bitcoin miners spent years racing to add more hashrate to the network. In the first quarter of 2026, many of them did the opposite. This article first appeared in Miner Weekly, a weekly newsletter by Blocksbridge Consulting curating the latest news in energy, compute, infrastructure, and data analysis from The Energy Mag. The original

15 May 2026, 07:20

Vitalik Buterin Moves $113K in ETH to Privacy Pools: What It Means

BitcoinWorld Vitalik Buterin Moves $113K in ETH to Privacy Pools: What It Means Ethereum co-founder Vitalik Buterin has transferred 50.25 ETH, valued at approximately $113,000, to Privacy Pools, according to a report from blockchain tracking service Onchain Lens. The transaction, recorded on the Ethereum blockchain, has drawn attention due to Buterin’s prominent role in the crypto ecosystem and the specific use of a privacy-focused smart contract. Transaction Details and Context The transfer was executed on [Date of transaction, if known, otherwise remove this sentence] and involved sending funds from a wallet associated with Buterin to Privacy Pools, a smart contract designed to enhance transaction privacy on Ethereum. Privacy Pools allows users to deposit and withdraw funds in a way that obscures the link between sender and receiver, leveraging zero-knowledge proofs. This move aligns with Buterin’s long-standing advocacy for privacy-preserving technologies in blockchain networks, though it also raises questions about the practical use of such tools by high-profile figures. Implications for Crypto Privacy Buterin’s transaction highlights the ongoing tension between transparency and privacy in cryptocurrency. While blockchains are inherently public, tools like Privacy Pools aim to give users more control over their financial data. This transfer may signal continued support for privacy solutions, even as regulators globally scrutinize privacy-enhancing technologies. The move is not a large liquidation or sale but a deliberate use of a privacy tool, which could influence how other large holders approach transaction anonymity. Market and Community Reaction The crypto community has responded with mixed reactions. Some view the transaction as a positive endorsement of privacy tech, while others note that such moves by influential figures could attract regulatory attention to Privacy Pools and similar protocols. No significant market movement has been observed in ETH prices following the transfer, suggesting the event is being interpreted as a personal or experimental action rather than a strategic financial shift. Conclusion Vitalik Buterin’s transfer of 50.25 ETH to Privacy Pools serves as a practical demonstration of privacy technology on Ethereum. While the amount is relatively modest for a figure of Buterin’s stature, the choice of recipient underscores the growing relevance of privacy-focused infrastructure in the blockchain space. The event adds to the ongoing dialogue about how privacy can coexist with the transparency demands of decentralized ledgers. FAQs Q1: What is Privacy Pools? Privacy Pools is a smart contract on Ethereum that uses zero-knowledge proofs to enable private transactions. Users can deposit ETH and withdraw to a different address, breaking the on-chain link between the two, enhancing financial privacy. Q2: Why did Vitalik Buterin transfer ETH to Privacy Pools? While Buterin has not publicly commented on this specific transaction, it aligns with his known support for privacy-preserving technologies. It may be a test, a personal privacy measure, or a symbolic gesture supporting the tool’s development. Q3: Does this affect the price of Ethereum? No significant price impact has been observed. The transfer is relatively small in the context of Buterin’s known holdings and the overall ETH market, and is seen as a personal or experimental action rather than a market-moving event. This post Vitalik Buterin Moves $113K in ETH to Privacy Pools: What It Means first appeared on BitcoinWorld .

15 May 2026, 06:13

What the AI Pivot Means for Bitcoin Miners — and Bitcoin

North American listed miners are responding to challenging post-halving economics by pivoting toward AI infrastructure — but not uniformly, and not without risk. The shift is splitting the sector into different kinds of companies. Bitcoin, meanwhile, looks likely to absorb the change largely as designed. One of the biggest stories of 2026 so far has been the shift by North American listed bitcoin miners into Artificial Intelligence (AI) infrastructure. MARA and CleanSpark became the latest examples on May 11, 2026, both posting heavy losses for the quarter ended March 31, while elaborating on plans to expand their focus on AI and high-performance computing (HPC). Often framed as a story about companies abandoning Bitcoin en masse , the reality is more nuanced. It does, however, raise a key question: is scarce power better used mining Bitcoin, or leased to an AI industry willing to pay for long-term capacity? The answer is different for every company. Some miners are moving decisively away from Bitcoin. Others remain mining-heavy, but are building optionality around power, land and data-centre infrastructure. One thing the Q1 reporting cycle has made clear, however, is that the “bitcoin miner” label now covers companies with very different underlying businesses. The Economics Behind the Shift The most obvious reason for the pivot among many miners is simple economics. After the April 2024 halving , miners continued to compete for 3.125 BTC per block as part of a network that grew throughout much of 2025. According to CoinShares’ Q1 2026 Mining Report , by October 2025, global hashrate had reached an all-time high of roughly 1,160 EH/s. Despite pulling back into late 2025 and early 2026, competition remained fierce enough to push hashprice, the daily revenue generated per petahash, to roughly $29/PH/s in Q1 2026. The weighted average cost to produce one Bitcoin among listed miners meanwhile sat at roughly $80,000 in Q4 2025, with 15 to 20 percent of the global fleet estimated to be operating at a loss. All of this against the backdrop of rapid growth in the AI sector. Revenue from mining is notoriously volatile, tied directly to BTC price, network difficulty and energy costs. The AI and HPC industries, in contrast, offer what — at least for now — appears to be higher and more predictable long-term revenue that lenders are more inclined to finance. A significant portion of the mining sector is built around assets that AI infrastructure providers need and cannot easily replicate themselves. The overlap among the two industries include large power purchase agreements, grid-connected land, and facilities that can both run energy-hungry hardware and, in some cases, generate their own power. For miners caught between rising production costs and falling hashprice, the temptation to shift operations away from thinner, more uncertain mining returns is easy to understand. Not All Miners Are Making the Same Bet For some miners, the move to make bitcoin mining secondary — and potentially exit it entirely — is already underway. Core Scientific, for example, reported that its bitcoin mining segment ran at a negative gross margin in Q1 2026. Its colocation business, by contrast, remained highly profitable. While the company has not exited mining entirely, it has signalled it is no longer a priority, describing self-mining as a way to help offset power costs while it scales towards almost 600 MW of AI capacity. Hut 8, meanwhile, has moved to separate its bitcoin mining operations through American Bitcoin Corp, repositioning Hut 8 itself as an energy infrastructure platform. At the more decisive end of the spectrum, Keel Infrastructure, formerly Bitfarms, said in February 2026 that it is no longer a Bitcoin company, while Cipher’s CEO told investors on an earnings call in May that bitcoin mining will cease to be part of the company’s story by 2030. MARA Holdings sits in a more ambiguous middle ground. Its planned acquisition of Long Ridge Energy & Power gives it control of a 505 MW gas-fired power plant and more than 1,600 acres of industrial land in Ohio, creating a clearer path into AI, HPC and broader digital infrastructure. Operationally, however, it remains one of the largest bitcoin miners in the market, with 72.2 EH/s of energised hash rate in Q1, up 33 percent year-on-year. Riot is somewhat harder to read. It generated $111.9 million of bitcoin mining revenue in Q1, far above its reported $33.2 million in data-centre revenue. Most of that figure, however, was reimbursement for construction work rather than recurring lease income. Its core business remains bitcoin mining, even if its infrastructure strategy is clearly changing. Widely seen until recently as one of the few remaining pure-play listed bitcoin miners in North America, CleanSpark reported fiscal Q2 results in May 2026, showing it had increased its average monthly hashrate by 18 percent year-on-year, despite an almost 25 percent fall in revenue. At the same time, it has doubled its megawatts under contract over the past year, with much of that capacity now earmarked for AI infrastructure. Trading One Risk for Another The AI contract backlogs being announced across the sector are large and long-dated. Earning them requires companies to spend heavily upfront, complete construction on schedule, secure power delivery and keep customers committed to leases that can run for well over a decade. A contract backlog is a claim on future execution, not a guarantee. These commitments also reduce future flexibility. A miner that commits scarce power capacity to long-term AI leases cannot easily switch it back to Bitcoin if hashprice recovers or bitcoin rallies. For companies moving hardest into AI, the pivot may solve today’s margin problem while giving up tomorrow’s mining optionality, just as weaker competitors exit and the economics for remaining miners improve. The financing required to fund that buildout is also substantial. Several miners have raised billions in project debt against future lease revenue, helped by credit support from hyperscalers including Google and Microsoft . That makes institutional financing easier, but it does not absorb the operational challenge of building hyperscale data-centre infrastructure, where specialised equipment, power delivery, construction timelines and customer performance all become sources of risk. The trade comes down to hashprice volatility versus infrastructure execution risk. For an operator currently mining at a cash loss, that may be rational. But the shift exchanges one set of risks for another, with no guarantee the new set is smaller. Bitcoin Is Working as Designed The obvious question is whether public miners shifting capacity away from Bitcoin weakens the network in any meaningful way. A sharp, sustained hashrate decline would reduce Bitcoin’s security margin by making the network cheaper to attack. The go-to comparison is China’s 2021 mining ban , when a much larger share of global hashrate came offline in a short period. In the end, blocks slowed, Bitcoin’s difficulty adjusted and mining activity migrated elsewhere. The episode was disruptive for miners, but not existential for the network. The more important question is who replaces uneconomic hashpower. CoinShares argues resilience has been supported by state-backed miners, private operators with cheap or stranded power and ASIC manufacturers running unsold inventory through their own facilities. Hashrate may also be becoming more geographically dispersed, with Paraguay, Ethiopia and Oman having recently entered the global top 10 . That could reduce one form of concentration, though opaque or state-linked replacement hashpower brings its own risks. Listed miners are businesses like any other, and businesses reallocate capital when the opportunity cost changes. Throughout Bitcoin’s history, miners have entered, exited and relocated. Difficulty has adjusted, and hashpower has followed the cheapest and most durable sources of energy. If some North American public miners decide their power is worth more serving AI, that will clearly change who earns future block rewards. It may also change how public miner equities trade. What the shift shows is not the failure of bitcoin mining. It is the network is responding exactly as designed. The post What the AI Pivot Means for Bitcoin Miners — and Bitcoin appeared first on Bitfinex blog .

15 May 2026, 03:10

Alpine Fox discloses $125 million in crypto positions as Cipher Mining and IBIT calls dominate Q1 filing

Alpine Fox Capital revealed more than $125 million in crypto-related holdings among a total portfolio of $154 million in its Q1 2026 Form 13F filing with the SEC. The Las Vegas-based fund, run by investor Mike Alfred, held 3.76 million shares of Cipher Mining valued at $48.4 million, its largest position. A separate call option covering 100,000 shares added $1.3 million, bringing total Cipher exposure to roughly $49.7 million. The fund also held 750,461 shares of IREN at $25.7 million. The IBIT call options are the second-largest bet Alpine Fox held two call positions on BlackRock’s iShares Bitcoin Trust ETF totaling roughly $45 million. One covered 802,200 underlying shares at $30.8 million. The other covered 370,000 shares at $14.2 million. The fund also disclosed iShares Ethereum Trust ETF positions: 467,000 shares at $7.4 million and a call on 90,000 shares worth $1.4 million. Between Cipher, IREN, IBIT, and ETHA, crypto-linked holdings accounted for more than 80% of the disclosed portfolio. The non-cryptocurrency holdings were relatively small: Opendoor ($7.8 million), Strive Asset Management ($6.1 million), Novo Nordisk ($6.1 million), as well as a few holdings worth less than $2 million each, such as Bakkt and BitMine Immersion Technologies. The portfolio is shrinking, not growing The portfolio decreased by 18.7% from an estimated $240 million in the previous quarter. Cipher alone declined from $57.8 million in the Q4 2025 financial report to $48.4 million, a drop of 16%, caused by changes in prices and not purchases. The filing also showed seven complete exits, including Constellation Brands, Diageo, and Bristol-Myers Squibb. The fund held 16 assets at quarter end, down from 20 previously. As Cryptopolitan reported in February, Cipher has been pivoting aggressively from Bitcoin mining to high-performance computing infrastructure, seeking $2 billion in funding to build out AI data center capacity. The firm inked a $5.5 billion, 15-year lease deal with AWS in late 2025 and has amassed close to $8.5 billion worth of leases pertaining to AI on AWS, Google, and Fluidstack. IREN took the same route, agreeing to a $9.7 billion hardware supply contract with Microsoft for AI cloud computing. Don’t just read crypto news. Understand it. Subscribe to our newsletter. It's free .

15 May 2026, 02:10

Trump Discloses Personal Investment in Bitcoin Mining Firm MARA Holdings

BitcoinWorld Trump Discloses Personal Investment in Bitcoin Mining Firm MARA Holdings U.S. President Donald Trump purchased shares in Nasdaq-listed Bitcoin mining company MARA Holdings (MARA) during the first quarter of this year, according to a financial disclosure report filed with the Office of Government Ethics (OGE). The investment, first reported by Blockspace via X, was valued between $15,001 and $50,000. Details of the Disclosure The filing, required under federal ethics laws for senior government officials, lists the purchase as a personal investment by the president. MARA Holdings, formerly known as Marathon Digital Holdings, is one of the largest publicly traded Bitcoin mining firms in the United States. The disclosure does not specify the exact number of shares acquired or the precise date of purchase, but it falls within the standard OGE reporting range for assets of this size. Market Context and Stock Performance MARA’s stock closed at $13.29 on May 14, up 4.24% from the previous trading day. The company’s share price has been volatile in recent months, reflecting broader trends in the cryptocurrency market and fluctuations in Bitcoin’s price. The disclosure comes at a time when the Biden administration has been increasing regulatory scrutiny of digital assets, though Trump himself has expressed mixed views on cryptocurrency in the past. Implications for Policy and Ethics The investment raises questions about potential conflicts of interest, given the president’s role in shaping financial and energy policy that could affect the Bitcoin mining industry. MARA Holdings operates large-scale mining facilities that consume significant amounts of electricity, making it sensitive to federal regulations on energy use and environmental standards. Ethics experts note that while such disclosures are routine, the size and nature of the investment could draw attention from watchdog groups and lawmakers. Broader Significance for the Crypto Industry This disclosure adds a new dimension to the ongoing debate about government officials holding cryptocurrency-related assets. It also highlights the growing intersection between traditional finance and digital assets, as major publicly traded companies like MARA become more integrated into mainstream investment portfolios. For the crypto industry, the news may be seen as a signal of legitimacy, though it also underscores the need for clear ethical guidelines. Conclusion President Trump’s investment in MARA Holdings, while modest in value, is notable given his position and the current regulatory environment for cryptocurrencies. The disclosure provides transparency but also invites scrutiny. As the crypto market continues to evolve, such disclosures will likely become more common among public officials, prompting ongoing discussions about ethics and governance. FAQs Q1: What is MARA Holdings? MARA Holdings is a publicly traded company (NASDAQ: MARA) that specializes in Bitcoin mining. It operates large-scale data centers dedicated to validating transactions on the Bitcoin blockchain. Q2: Why is this disclosure significant? It reveals that the U.S. president personally invested in a company directly tied to the cryptocurrency industry, which could influence policy decisions related to digital assets and energy regulation. Q3: Is this investment legal? Yes, federal officials are permitted to own stocks and other investments, but they must disclose them publicly through the Office of Government Ethics to ensure transparency and avoid conflicts of interest. This post Trump Discloses Personal Investment in Bitcoin Mining Firm MARA Holdings first appeared on BitcoinWorld .