Hello, this is John. Today I will be explaining in an easy-to-understand way the sudden rise in the stock price of Bitcoin mining company IREN and its shift to the AI cloud business.
As the Bitcoin (BTC) mining industry (the process of generating new coins through the transaction approval process) begins to ride the wave of AI (artificial intelligence), companies like IREN are gaining attention. This trend is linked not only to the future of cryptocurrencies, but also to the demand for infrastructure for AI technology, making it a topic that investors and tech enthusiasts cannot miss. Let's start with some background information and then follow up on the latest news.
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What kind of company is IREN?
IREN (formerly known as Iris Energy) is an Australia-based Bitcoin mining company listed on the NASDAQ (US stock market). It operates data centers that primarily use renewable energy and mines Bitcoin. In the past, it has rapidly expanded its mining capacity by leveraging its energy-efficient facilities.
Currently, in addition to Bitcoin mining, the company is shifting to AI cloud services (a business that provides AI calculations via the cloud), which is pushing up its stock price. Movements since the start of 2025 have been particularly active.
Past Bitcoin mining business and its evolution
In the past, IREN rapidly increased Bitcoin's hash rate (a unit of computing power for mining), for example, from 20 EH/s (exahashes per second, representing a massive amount of computation) to 30 EH/s in 2024, increasing monthly Bitcoin production.
However, due to fluctuations in Bitcoin prices and intensifying competition, the profitability of mining alone has become an issue. As a result, the company is now accelerating its shift to AI cloud, and has announced a plan to temporarily suspend the expansion of Bitcoin mining in March 2025 and allocate capital to AI data centers.
Breaking News: AI Cloud Expansion and Stock Soaring
As of September 2025, IREN's stock price has risen by over 530% over the past six months, driven by the expansion of its AI cloud business and favorable analyst ratings. For example, on August 29, 2025, it was reported that IREN achieved its first full-year profit, attributing this to the growth of its AI cloud and mining business.
Furthermore, in an announcement around September 22, 2025, the company revealed a major expansion of GPUs (graphics processing units, chips specialized for AI calculations) and raised its annual AI cloud revenue target to over $500 million, raising market expectations and causing its stock price to rise 11% in the pre-market.
- Data center capacity increased from 510MW to 660MW.
- Bitcoin mining capacity reaches 35 EH/s, with a goal of 52 EH/s in the future.
- Adding 1,080 of NVIDIA's latest GPUs to boost AI cloud revenue to 10% by the end of the year.
- Analyst price target raised to $75, praising the company's vertical AI integration strategy.
Future outlook and use cases
Going forward, IREN is expected to further strengthen its AI cloud using its Bitcoin mining infrastructure, and is moving to expand its AI hosting business like its competitors, with a plan to reach over $500 million in annual recurring revenue from its AI cloud by the first quarter of 2026.
One use case is expected to be that AI development companies will rent high-performance computing power from IREN's cloud, which is expected to become a stable source of revenue to compensate for Bitcoin's volatility (intense price fluctuations). However, competition in the AI market is fierce, so it is important to keep an eye on it.
Key risks and countermeasures
When investing in stocks like IREN, keep in mind the risk of fluctuations in virtual currencies and stock prices. Falling Bitcoin prices and rising energy costs may have an impact. Invest at your own risk and consult with an expert.
In addition, legal regulations regarding virtual currencies are being implemented in various countries. In Japan, you should follow the guidelines of the Financial Services Agency and be sure to set up two-factor authentication as a security measure. To minimize risk, it is best to avoid large investments and start with a small amount.
Summary and John's thoughts
IREN's shift to AI cloud computing represents a new trend in the Bitcoin mining industry, and the fusion of virtual currency and AI is likely to become even more interesting in the future. First, get a grasp of the basics, then check the latest news and form your own perspective.
I, John, believe that companies like this that are growing by utilizing renewable energy are a great example of increasing the sustainability of the entire industry. Feel free to follow the information and have fun learning!
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This article has been compiled and fact-checked by the author, based on the following original articles and public information:
- IREN Stock Soars: Bitcoin Mining Firm Surges on Wall Street AI Cloud Optimism
- Bitcoin Mining News: IREN Post First Full-Year Profit, Shares Rise
- Bitcoin Miner IREN Reallocating Capital to AI Data Centers
- IREN Limited (IREN) Stock Price, News, Quote & History – Yahoo Finance
- Bitcoin Miner to AI Cloud Sensation: Why Iris Energy (IREN) Stock Is Soaring in 2025
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