Business

SoftBank Downgraded by Deutsche Bank on AI ‘Mania’ Risks After Surging to Top of Japan’s Market

📅 June 02, 2026 05:00 ET ⏱ 1 min 👁 views GazetaDay Editorial

Deutsche Bank analyst downgraded SoftBank Group Corp. to hold from a previous rating, citing risks tied to artificial intelligence “mania” following the stock’s rally to the top of Japan’s market capitalization rankings.

Downgrade Rationale

The analyst flagged that SoftBank’s recent surge—propelling it to Japan’s most valuable company—has been driven by investor exuberance around artificial intelligence. The downgrade reflects concerns that current valuations are unsustainable amid what the bank describes as AI “mania,” recommending a more cautious stance.

Share Performance and Valuation Context

SoftBank’s stock climbed sharply in 2026, outpacing domestic peers and pushing its market value above major Japanese blue chips. Deutsche Bank’s new hold rating suggests limited upside from current levels, as the analyst sees the risk-reward balance shifting following the rapid price appreciation.

Market Context

SoftBankDeutsche BankAI maniadowngradeJapan equitiesmarket valuationinvestment risk