Stock Analysis

Why SoftBank (TSE:9434) Is Down 6.6% After $500 Billion Stargate AI Data Center Expansion Announcement

  • Last week, the Stargate partnership, comprising OpenAI, Oracle, SoftBank, and the White House, announced plans to invest US$500 billion over four years to build 10 gigawatts of AI data center capacity in the U.S., with five additional data centers now slated for construction and one already in operation.
  • This initiative highlights SoftBank's deepening involvement in large-scale AI infrastructure, positioning the company at the center of a pivotal transformation in U.S. artificial intelligence operations.
  • We’ll now examine how SoftBank’s role in the landmark Stargate AI infrastructure project may reshape its growth narrative and risks.

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SoftBank Investment Narrative Recap

To be a SoftBank shareholder, you need confidence in its ability to harness next-generation digital infrastructure and AI as growth engines while managing intense competition and controlling rising costs in its domestic telecom business. While the Stargate announcement spotlights SoftBank’s ambition in US-based AI data centers, the capital intensity and long-term payback make it less likely to shift the near-term focus, the biggest catalyst remains enterprise AI monetization in Japan, and the principal risk continues to be margin pressure from cost inflation and price competition at home.

Of its recent announcements, the March 5 expansion with SambaNova at a new AI data center in Japan most directly ties to the Stargate news, underlining SoftBank’s push to build and commercialize advanced AI infrastructure. The rollout of these high-performance facilities supports SoftBank’s catalyst of targeting Japan-based enterprises with proprietary AI models and commercial GPU-as-a-service, potentially accelerating recurring revenue growth in its core market.

On the other hand, investors should be aware that high upfront data center investments may strain SoftBank’s cash flows and elevate debt, especially if...

Read the full narrative on SoftBank (it's free!)

SoftBank’s outlook anticipates ¥7,548.0 billion in revenue and ¥650.7 billion in earnings by 2028. This scenario requires a 4.2% annual revenue growth rate and a ¥149.5 billion increase in earnings from the current ¥501.2 billion level.

Uncover how SoftBank's forecasts yield a ¥235 fair value, a 10% upside to its current price.

Exploring Other Perspectives

TSE:9434 Community Fair Values as at Oct 2025
TSE:9434 Community Fair Values as at Oct 2025

Five Community members estimate SoftBank’s fair value between ¥100.14 and ¥967.44, reflecting vast differences in outlook and conviction. Rising costs and compressed margins at home continue to weigh on short-term performance, so consider multiple viewpoints before deciding.

Explore 5 other fair value estimates on SoftBank - why the stock might be worth less than half the current price!

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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About TSE:9434

SoftBank

Provides mobile communications and fixed-line telecommunications and ISP services in Japan.

Average dividend payer and fair value.

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