TLDR
IREN stock closes at $34.80 as Anthropic partnership reports drive market interest.
Anthropic reportedly signed a multiyear cloud agreement with IREN Limited.
IREN’s undisclosed AI customer could be Anthropic, according to new reports.
IREN shares gain 0.86% after hours despite Monday’s 1.11% closing decline.
Legacy data center concerns challenge IREN’s expanding AI cloud ambitions.
IREN Limited stock closed Monday at $34.80, down 1.11%, before recovering 0.86% to $35.10 in after-hours trading. The movement followed reports linking the company to an undisclosed multiyear cloud agreement with Anthropic. The development renewed market interest in IREN’s expanding artificial intelligence infrastructure business.
IREN Limited, IREN
The stock had gained approximately 8% in overnight trading on Sunday following speculation about the partnership. Monday’s regular session erased those early gains as shares finished below the previous closing level. The reported agreement could strengthen IREN’s position in the growing market for high-performance computing infrastructure.
IREN Limited Stock Gains Attention Over Anthropic Cloud Agreement
The Information reported that Anthropic maintains an unannounced multiyear cloud agreement with IREN, citing people familiar with the arrangement. The report examined Anthropic’s efforts to expand data center capacity and meet growing computing requirements. Neither company has publicly confirmed the partnership or disclosed its financial terms.
The report also connected Anthropic’s infrastructure expansion to several companies with backgrounds in Bitcoin mining. These included Hut 8, TeraWulf, IREN, and Nscale, which provide computing infrastructure and access to large power resources. Such providers can help technology companies expand capacity without developing every facility independently.
Anthropic’s reported relationship with IREN would support the company’s transition from cryptocurrency mining toward artificial intelligence cloud services. Growing demand for advanced computing infrastructure continues to create opportunities for specialized data center operators. A confirmed agreement would add another prominent customer to IREN’s expanding business network.
IREN’s Earlier Customer Disclosure Strengthens Anthropic Speculation
In August, IREN disclosed several multiyear cloud agreements during its fiscal fourth-quarter earnings call. CEO Daniel Roberts identified customers including Cohere, Prometheus, Perplexity, Figure AI, Fal AI, and Higgsfield AI. He also mentioned a separate agreement with a leading frontier artificial intelligence laboratory without naming the organization.
The earlier disclosure created a connection between IREN’s existing contracts and the latest Anthropic report. IREN has not established whether Anthropic represents that previously unnamed customer or a separate agreement. The reported partnership therefore remains an unconfirmed development rather than a newly announced company contract.
IREN has expanded its infrastructure business through agreements with technology companies seeking additional computing capacity. Its broader customer network and existing facilities support its move into specialized cloud services. The company also faces competition from CoreWeave, Nebius, and other operators expanding their artificial intelligence infrastructure businesses.
IREN Stock Faces Data Center Concerns Despite Bullish Sentiment
IREN has faced criticism concerning the operational quality of its older data centers in British Columbia. Research firm SemiAnalysis recently highlighted reported customer complaints involving facilities in Prince George and Mackenzie. These concerns introduced additional scrutiny of IREN’s infrastructure as the company expands its artificial intelligence operations.
Despite those concerns, retail sentiment strengthened following reports connecting IREN with Anthropic. The stock reached the top of Stocktwits’ trending list as traders discussed the possible partnership. Some market participants anticipated further gains, while others questioned the lack of official confirmation.
IREN shares have also struggled against several competing cloud infrastructure stocks during 2026. The company entered Monday’s session with a year-to-date decline of approximately 7%, according to the earlier market report. The Anthropic speculation lifted trading interest, Monday’s lower close showed that the initial rally had faded.
The post IREN Limited (IREN) Stock: Eyes Big Gains on Anthropic Deal Buzz appeared first on Blockonomi .
