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SoftBank Group (TSE:9984) Stock Looks Above Fair Value As Its 329% Run Continues

Simply Wall St·09/10/2026 20:15:27
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SoftBank Group stock has delivered a very strong run over the past five years, while the valuation checks send a mixed message, with the Discounted Cash Flow (DCF) intrinsic value pointing to a premium and market multiples screening more supportive.

  • SoftBank Group has returned about 3.3x over the past 5 years, which puts extra focus on whether recent gains already reflect the key assets and risks.
  • Fresh headlines around SB Energy’s planned US$5b to US$7b IPO and SoftBank’s refinancing of the US$40b OpenAI related loan can support higher expectations, while the heavy capital needs and balance sheet commitments may limit how much value ultimately reaches shareholders.
  • A value score of 3 out of 6 points to a mixed picture rather than a clear bargain or clear overvaluation on the broader checks.

The key question now is whether SoftBank Group’s current share price already more than reflects its intrinsic value estimate, or still leaves room for further upside in the medium term.

Spot opportunities beyond SoftBank Group by scanning our hand-picked 89 AI infrastructure stocks. It is built around the same AI and data-center energy themes driving today’s headlines.

Does SoftBank Group Look Pricey on Cash Flow?

The Discounted Cash Flow (DCF) model here takes SoftBank Group’s projected free cash flows and discounts them back into today’s money. Latest twelve month free cash flow is a loss of about ¥2.1b, while the projections assume a recovery into positive cash generation and then moderate growth rather than an aggressive ramp up. On those inputs, the model lands on an estimated intrinsic value of roughly ¥5,510 per share.

Set against the current market price, that intrinsic value implies the stock screens about 23.6% overvalued. The planned ¥5b to ¥7b SB Energy IPO and the refinancing of the ¥40b OpenAI related loan both highlight how capital hungry SoftBank Group’s AI linked bets are, which helps explain why investors appear willing to pay a premium to the cash flow estimate.

On this DCF view, SoftBank Group stock looks overvalued relative to what its projected cash flows support.

Our Discounted Cash Flow (DCF) analysis suggests SoftBank Group may be overvalued by 23.6%. Discover 17 high quality undervalued stocks or create your own screener to find better value opportunities.

9984 Discounted Cash Flow as at Sep 2026
9984 Discounted Cash Flow as at Sep 2026

Head to the Valuation section of our Company Report for more details on how we arrive at this Fair Value for SoftBank Group.

Does SoftBank Group Look Undervalued on Earnings?

P/E suits SoftBank Group because earnings already capture a lot of the value created from investing activity and listed holdings. On this lens, the shares trade on about 7.9x earnings, compared with roughly 15.3x for the wider Wireless Telecom industry and about 19.5x for peers in the broader group. The stock also sits below a tailored fair P/E of about 11.5x, which blends its scale, sector, profitability profile and risk.

That gap between a current 7.9x and a fair 11.5x indicates that investors are paying a lower price for each yen of SoftBank Group’s earnings than the model implies. The discount is visible even before you factor in the highly public SB Energy IPO plans and the refinancing around the OpenAI related loan, which keep attention on how the group is repositioning around AI and infrastructure themes.

On the P/E multiple alone, SoftBank Group appears undervalued relative to what its earnings profile would typically justify.

TSE:9984 P/E Ratio as at Sep 2026
TSE:9984 P/E Ratio as at Sep 2026

See what the numbers say about this price — find out in our valuation breakdown.

The SoftBank Group Narrative: What Would Justify Today's Price?

Simply Wall St Narratives for SoftBank Group pick up where this valuation puzzle leaves off. They spell out which assumptions on SoftBank Group's future growth, profitability and earnings power would need to hold for the shares to be worth meaningfully more or less than today's quote, and each connects its number to a specific view on how growth, margins and risk could evolve over time so you can revisit the logic when fresh information lands.

Community views on SoftBank Group could hardly be further apart, with one camp leaning into the AI build out story and the other zeroed in on balance sheet strain and execution risk.

Bull case: 14% undervalued

"SoftBank's close alignment with long-term AI secular growth, demonstrated by investments in Arm, OpenAI, and numerous AI-focused Vision Fund portfolio companies, could drive significant gains in NAV and future earnings as AI adoption and automation accelerate globally…"

Read the full Bull Case to see why SoftBank Group could be undervalued

Bear case: 51% overvalued

"SoftBank’s exposure to frontier AI through strategic investments positions it to benefit significantly as global AI spending accelerates…"

Read the full Bear Case to see why SoftBank Group could be overvalued

Do you think there's more to the story for SoftBank Group? Head over to our Community to see what others are saying!

The Bottom Line

SoftBank Group’s valuation story is split. The Discounted Cash Flow (DCF) intrinsic value points to the shares trading above what current cash flow assumptions support, which reflects heavy funding needs and timing risk around AI and infrastructure bets. Market multiples tell the opposite story, with a low P/E suggesting investors are not paying up for those earnings or optionality. The crux is whether SoftBank Group can convert its AI exposure and capital intensive projects into durable, cash backed returns rather than headline driven optimism. That is what ultimately decides whether the current discount on earnings is an opportunity or a warning sign.

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.