IREN, BitFuFu notch June records as mining sector shows mixed signals
Powered by ChatGPTCryptocurrency miners IREN and BitFuFu hit new performance records in June, amid other notable gains for Bitcoin mining companies this year.
Australian-based miner IREN reported record-high monthly revenue of $68 million in June, as well as a peak of $51 million in total hardware profit. BitFuFu, based in Singapore, also disclosed an all-time high total hashrate and power capacity under management of 36.2 EH/s and 728 MW, respectively, according to company releases.
Both IREN and BitFuFu trade on the Nasdaq stock exchange, with their shares trading at $17.40 and $3.39, respectively, as of the time of publication.
IREN owns and operates data centers powering Bitcoin mining, AI cloud services, and other computing use cases solely with renewable energy, according to the firm's website.
"The past month has marked several significant milestones for IREN," said co-founder and co-CEO Daniel Roberts in a statement. "We delivered another month of record revenues, executed an oversubscribed convertible note offering, reached our self-mining target of 50 EH/s, transitioned to U.S. domestic issuer status, and more than doubled our AI Cloud business with the procurement of next-generation NVIDIA Blackwell GPUs."
Meanwhile, BiFuFu disclosed holding 1,792 $BTC, valued at around $193.7 million, as of June 30.
"June was our most productive month of 2025, with 445 Bitcoin mined thanks to the continued expansion of our mining fleet," said BitFuFu Chairman and CEO Leo Lu in a statement.
Though IREN and BitFuFu noted wins last month, Bitcoin monthly revenue slightly decreased between May and June. The Block's Data Dashboard indicates that total revenue decreased by 8.6% from May's $1.52 billion to June's $1.39 billion.
Another cryptocurrency mining firm, MARA, also posted a significant win in May this year. The firm mined and held 950 $BTC, worth approximately $101 million, in May, increasing the second-largest publicly traded Bitcoin treasury to49,179 $BTC, as previously reported by The Block.