Crypto miner Iren surpasses MARA in both Bitcoin production and fleet utilization in July

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Quick Take

  • Iren Limited is now the leading mining company by hashrate, according to an announcement on Wednesday.
  • Bitcoin’s hashrate climbed above 900 EH/s for the first time last month.

Iren Limited (ticker IREN) is now the leading mining company by hashrate, according to an announcement on Wednesday. The firm, based in Sydney, surpassed rival MARA in both production and fleet utilization.

According to an announcement, Iren produced 728 BTC in July, as compared to MARA’s 703 BTC. Iren utilized over 90% of its fleet.

Notably, Bitcoin's hashrate climbed above 900 EH/s for the first time last month. The network’s hashrate is the total computational power used by miners to process transactions and secure the Bitcoin blockchain by expending energy.

Iren notched an average hashrate of 45.4 EH/s, representing revenue per Bitcoin mined at $114,891. MARA saw a realized hashrate of 43.94 EH/s, with just under 75% of its fleet in operation.

"We delivered another month of record revenue of $86m and record hardware profits of $66m in July, supported by strong Bitcoin mining economics and continued demand for our AI Cloud services," said Daniel Roberts, co-founder and co-CEO.

The company also recorded $2.3 million in revenue from its growing compute business. MARA, unlike many crypto miners that have begun pivoting towards high-performance computing services, has remained a pure play bitcoin miner. In June, MARA mined 950 BTC, its highest amount since the 2024 Bitcoin halving.

IREN is trading at $18.32 at press time, up over 11% on the day, according to The Block's price page. MARA is up nearly 2% to trade at $15.91.

Bitcoin treasuries

MARA is also the second-largest corporate holder of bitcoin. The company’s holdings climbed to 50,639 BTC, worth over $5.8 billion.

In related news, CleanSpark (ticker CLSK) said it grew its treasury to over 12,700 self-mined bitcoin.

"Importantly, we continued to self-fund our operations through strategic Bitcoin sales, enabling ongoing accumulation while avoiding any use of equity financing or shareholder dilution," CleanSpark CEO Zach Bradford said in a statement, seemingly commenting on the growing trend of so-called digital asset treasury companies raising capital through equity and debt sales.

Cipher Mining (ticker CIFR) said it mined 214 BTC, sold 52 BTC, and bumped its holdings to 1,219 BTC in July.


Disclaimer: The Block is an independent media outlet that delivers news, research, and data. As of November 2023, Foresight Ventures is a majority investor of The Block. Foresight Ventures invests in other companies in the crypto space. Crypto exchange Bitget is an anchor LP for Foresight Ventures. The Block continues to operate independently to deliver objective, impactful, and timely information about the crypto industry. Here are our current financial disclosures.

© 2025 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

AUTHOR

Daniel Kuhn is a Senior Journalist and Editor at The Block, where he covers the crypto industry with a particular focus on tech. He previously served as deputy managing editor of opinion/features at CoinDesk. He first appeared in print in Financial Planning, a trade publication magazine. Before journalism, he studied philosophy as an undergrad, English literature in graduate school and business and economic reporting at an NYU professional program. You can connect with him on Twitter and Telegram @danielgkuhn or find him on Urbit as ~dorrys-lonreb.

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To contact the editor of this story: Jason Shubnell at [email protected]

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