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SoftBank Soars 146%: AI Drives Market Confidence in Japan

9/22/2025

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Summary

Story summary

SoftBank Group's growing influence in Japan's equity benchmark is attracting even skeptics.
Founder Masayoshi Son's emphasis on artificial intelligence has driven a 146% stock increase since April.
The stock ranks among the top performers in the Topix index.
SoftBank's index weight has reached 2%, following Toyota and Sony.
Fund managers, despite volatility concerns, see SoftBank as essential for market outperformance.

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Story summary

SoftBank Group's growing influence in Japan's equity benchmark is attracting even skeptics.
Founder Masayoshi Son's emphasis on artificial intelligence has driven a 146% stock increase since April.
The stock ranks among the top performers in the Topix index.
SoftBank's index weight has reached 2%, following Toyota and Sony.
Fund managers, despite volatility concerns, see SoftBank as essential for market outperformance.