Japan trust bank and custody map

ConfidenceLikely
Updated2026-05-22
Review by2026-11-22
Sources10Machine-translatedOriginal (JA)
#banking#trust-bank#custody#asset-administration#securities-settlement
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Overview

Japan’s trust-bank / custody layer separates legal title, beneficial owner, asset administration, investment instruction, corporate actions, voting, stock lending, and fund accounting. The key mistake is to read “trust account” nominee names in filings as if the trust bank itself were the economic investor.

Use this page with banking domain, master trust / custody bank landscape, Master Trust Bank of Japan, Custody Bank of Japan, Sumitomo Mitsui Trust, Mitsubishi UFJ Trust Bank, stock lending route, and securities market infrastructure.

Function Map

Function What it means
Trust banking Bank plus trust-business functions under the trust / banking regulatory route.
Asset administration Safekeeping, settlement, corporate actions, income collection, fund accounting, reporting, and recordkeeping.
Master custody Centralized asset-administration service for institutional investors / funds.
Nominee name Legal-title / book-entry name that may differ from beneficial owner.
Investment instruction Usually comes from asset owner, investment manager, or fund structure, not the custodian itself.
Stock lending support Securities may be lent under instruction and control arrangements, creating securities-finance links.

Main Institution Types

Type Examples Typical role
Full-service trust bank Mitsubishi UFJ Trust Bank, Mizuho Trust, SMTB Trust, real estate, pension, securities agency, asset management / administration.
Asset-administration specialist Master Trust Bank of Japan, Custody Bank of Japan Large-scale institutional custody and fund / pension asset administration.
Global custodian / ICSD in Japan BNY Mellon Japan, State Street Japan, Euroclear Bank Japan, Clearstream Banking Japan Foreign investor / global asset-servicing, settlement, disclosure, and collateral bridge.
Securities depository / settlement infrastructure JASDEC, JSCC Book-entry transfer, DVP, clearing and settlement plumbing.

Interpretation Rules

Public artifact How to read it
“信託口” major shareholder name Nominee / trust-account name; do not infer proprietary ownership by the trust bank.
Custodian balance / assets under custody Client assets under administration, not the bank’s own investment portfolio.
Voting-right disclosure Voting instruction usually belongs to asset owner / manager; custodian may execute mechanically.
Securities lending revenue May belong partly to beneficial owners depending on lending program terms.
Fund accounting / NAV operations Operational asset-servicing layer, not investment decision itself.

Trust-bank custody links banking to securities-market infrastructure:

Research Checklist

  1. Identify whether the trust bank is acting as trustee, custodian, fund administrator, transfer agent, securities agent, or proprietary balance-sheet actor.
  2. Separate nominee name from beneficial owner before drawing ownership conclusions.
  3. Check FSA trust-bank / trust-company lists and the Trust Companies Association explanation.
  4. Link stock lending and short-sale questions to stock lending rather than treating custody balances as short signals.
  5. For current AUC / AuA figures, record the source date because custody balances move with market prices and new mandates.

Sources

  • FSA: list of trust-business financial institutions.
  • FSA: trust-company supervisory guideline section for trust-business financial institutions.
  • Trust Companies Association of Japan: trust-bank explanation and member-company list.
  • JASDEC / JSCC / BoJ: securities settlement, DVP, and JGB book-entry public materials.
  • Master Trust Bank of Japan: official business overview.
  • Custody Bank of Japan: official company / business explanation.

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