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

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.

Seagate Projects Third-Quarter Revenue Below Expectations Amid Slow PC Market Recovery

Seagate Technology has forecasted a disappointing third-quarter revenue, projecting figures below analyst expectations due to weak sales of its storage devices for personal computers, as the PC market remains sluggish.

Key Points:

  • Weakened PC Market: Despite the integration of on-device AI features and an expected Windows 11 refresh cycle, Seagate’s outlook reflects the ongoing struggles in the PC market. Global PC shipments in 2024 saw only a 1% rise, with the total number of units falling below 250 million for the second consecutive year.
  • Revenue Forecast: Seagate anticipates third-quarter revenue to be around $2.10 billion, plus or minus $150 million. This forecast is below analysts’ average estimate of $2.19 billion, based on data from LSEG.
  • Profit Estimates: Seagate expects an adjusted profit of $1.70 per share for the third quarter, which is slightly above analysts’ estimate of $1.69.
  • Cloud and AI Prospects: While the forecast is gloomy for the near term, analysts suggest that the growing investment in infrastructure for generative AI development by cloud providers could provide a boost to Seagate’s sales in 2025. Seagate’s disk drives are crucial for storing vast amounts of data, making the company a key player in the evolving AI-driven tech landscape.
  • Recent Performance: For the second quarter ending Dec. 27, Seagate reported revenue of $2.33 billion, in line with analysts’ expectations of $2.32 billion.