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Western Digital and Seagate Surge as AI Infrastructure Demand Fuels Record Gains

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Shares of data storage leaders Western Digital and Seagate have skyrocketed this year, outpacing the broader market as global demand for AI-driven infrastructure fuels unprecedented growth in hard drive sales. Both companies’ stocks have surged over 200% in 2025, reaching record highs amid a worldwide scramble to expand data storage capacity for artificial intelligence applications.

Western Digital shares rose more than 11% on Friday after the company forecast second-quarter earnings above Wall Street estimates. Analysts at J.P. Morgan noted that Western Digital has secured purchase orders from five of its largest customers through 2026, signaling strong confidence in sustained AI-related demand.

Seagate, a close rival, also projected revenue and profit above expectations earlier this week, pushing its stock up more than 22%. Both companies are now among the top three performers in the S&P 500 this year, trailing only Robinhood.

Smaller competitor Sandisk, spun off from Western Digital in February, has seen its shares soar fivefold since its debut and was up another 3.6% on Friday ahead of its upcoming earnings report.

The S&P 1500 tech hardware, storage, and peripherals sector—which includes all three companies—has climbed more than 12% this year, hitting an all-time high. As major tech firms like Alphabet, Microsoft, Meta, and Amazon ramp up capital spending on chips and data centers, analysts expect global AI infrastructure investments to reach up to $4 trillion by 2030.

OpenAI, Oracle and Vantage to build $15B Stargate data center in Wisconsin

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OpenAI, Oracle (ORCL.N), and Vantage Data Centers announced plans to develop a massive new data center campus in Port Washington, Wisconsin, as part of the multibillion-dollar Stargate initiative designed to keep the U.S. at the forefront of artificial intelligence infrastructure.

The Wisconsin site, named Lighthouse, is set for completion in 2028 and will create more than 4,000 skilled construction jobs, most of them union-based. Backed by Vantage’s $15 billion investment, the facility will be a core component of OpenAI and Oracle’s plan to deliver over 4.5 gigawatts of IT capacity nationwide.

Stargate—envisioned as a $500 billion, 10-gigawatt project—also includes Japan’s SoftBank Group (9984.T) and recently began work on its first AI data center in Abilene, Texas. The initiative aligns with President Donald Trump’s broader strategy to maintain U.S. dominance in advanced computing amid growing competition from China.

OpenAI and its primary backer Microsoft (MSFT.O) are among the major tech firms investing heavily in data centers to power generative AI systems such as ChatGPT and Copilot, both of which demand vast computing resources.

Once operational, the Lighthouse campus will anchor a growing network of Stargate sites being developed with Oracle, generating more than 1,000 long-term jobs and thousands of additional indirect roles in the region.

Vantage, supported by private equity firm Silver Lake and asset manager DigitalBridge (DBRG.N), will oversee the Port Washington buildout as part of its ongoing U.S. data center expansion. The companies said the project marks a crucial step toward meeting the exploding global demand for AI infrastructure.

UK Data Centre Spending to Hit £10 Billion Annually by 2029 Amid AI Boom

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Spending on new UK data centres is set to surge to £10 billion a year by 2029, more than five times higher than in 2024, according to new analysis from construction data firm Barbour ABI.

The report found that £1.75 billion was spent on data centre construction in 2023, with that figure projected to rise to £2.38 billion in 2025 as demand for AI-driven computing power continues to accelerate. Over the next five years, tech giants including Microsoft, Nvidia, and Google are expected to invest a combined £25 billion in the UK’s data infrastructure, with nearly 100 new projects already in the pipeline.

Barbour ABI said the expansion reflects both global AI adoption and UK government initiatives, such as the AI Growth Zones, designed to speed up planning approvals for digital infrastructure.

While London and its surrounding regions remain the country’s data centre hub, development is now spreading nationwide, driven by rising demand for low-latency connectivity and renewable energy sources to power data-intensive AI systems.

The largest upcoming project is a $13 billion hyperscale data centre planned in North East England, led by U.S. private equity group Blackstone—a sign that international investors view the UK as a strategic AI infrastructure hub.

The rise in data centre construction comes amid a global race to expand digital capacity following the release of ChatGPT in late 2022, which sparked an explosion in AI model training, cloud computing, and enterprise automation.

Barbour ABI said the shift marks one of the fastest-growing infrastructure trends in the country’s history. “AI has completely reshaped data demands,” the report noted. “We’re now entering a decade defined by hyperscale expansion.”