AlphaMaven AlphaMaven

Japan's Largest Trust Bank Puts BUIDL-Style Fund on Ethereum

Reported by Cryptonews
Jul 10, 2026· 2 min read
Save Post LinkedIn Email
Key Takeaways
  • • Sumitomo Mitsui Trust Bank (SMTB), Japan's largest trust bank with USD 453 billion in assets under management, has launched a BUIDL-style fund on the Ethereum blockchain, signaling institutional adoption of tokenized assets by major Japanese financial institutions.
  • • The partnership with HPC Partners represents a strategic move by SMTB to expand into digital asset infrastructure, leveraging Ethereum's blockchain for what appears to be a fund structure aligned with the BUIDL tokenization framework.
  • • SMTB's entry into Ethereum-based funds positions Japan's largest trust bank—which manages the country's largest entrusted balance of corporate pension funds—as a significant institutional player in blockchain-based asset management.
  • • The initiative reflects a broader trend among Japanese mega trust banks (including Mitsubishi UFJ Trust and Banking and Mizuho Trust and Bank) to diversify asset allocations and explore emerging financial technologies.
Summary
Sumitomo Mitsui Trust Bank (SMTB), Japan's largest trust bank by total assets with USD 453 billion under management, has launched a BUIDL-style fund on Ethereum in partnership with HPC Partners. This development marks a notable institutional adoption of blockchain-based asset structures by one of Japan's most significant financial players.

SMTB's entry into tokenized fund infrastructure on Ethereum underscores the trust bank's strategic positioning to capture emerging opportunities in digital asset management. As Japan's leading trust bank, SMTB holds particular significance in the domestic asset management ecosystem, managing the largest entrusted balance of corporate pension funds in the country and serving as a critical counterparty for Japanese institutional investors.

The BUIDL-style fund structure typically refers to blockchain-based investment vehicles designed for institutional participants, offering tokenized exposure to digital assets while maintaining institutional-grade custody and compliance standards. By deploying this structure on Ethereum, SMTB is extending its asset management capabilities into decentralized finance infrastructure while maintaining its institutional framework.

This move aligns with reported trends among Japan's mega trust banks to increase allocations to equities and alternative assets. The partnership with HPC Partners represents a long-term strategic commitment to blockchain-based asset management, suggesting SMTB views digital asset infrastructure as a core component of future wealth management operations. The initiative positions the bank ahead of competitors in institutional blockchain adoption while leveraging Ethereum's established network and developer ecosystem for fund operations and settlement.

Go deeper than the headline

Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.

Start your free 7-day trial

Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Cryptonews Japan's Largest Trust Bank Puts BUIDL-Style Fund on Ethereum