# Asset Management One

Asset Management One is an Asset Manager based in Tokyo, Japan.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Tokyo, Japan
- **Region:** Asia
- **Address:** Tokyo, Japan
- **Founded:** 1997
- **Assets under management:** Undisclosed
- **Website:** am-one.co.jp
- **LinkedIn:** linkedin.com/company/asset-management-one

## Regulatory record

- **CRD number:** 110843
- **SEC file number:** 801-55047
- **Registration status:** Registered
- **Reports private funds:** No
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/110843

## About

Asset Management One ranks among Japan's institutional gatekeepers, specializing in a manager-of-managers approach that builds portfolios by combining third-party fund strategies. The Tokyo-based firm emerged as a dedicated vehicle for constructing multi-manager solutions, though its founding details and leadership structure remain out of public view. Its architecture hinges on selecting, monitoring, and blending external investment talent across asset classes, offering clients a pre-packaged diversification path without the operational burden of direct manager oversight. Its deployment of roughly $553 million flows into external funds rather than co-investments or direct deals, a structure that emphasizes portfolio construction over proprietary underwriting. While specific fund partnerships or underlying manager names are not disclosed, the model inherently distributes risk across strategies and geographies, targeting institutional investors who prioritize breadth over concentrated bets in single-manager funds. With its base in Tokyo, Asset Management One draws on Japan's institutional capital pools, though team size and additional office locations remain unconfirmed. No adjacent vehicles or philanthropic foundations tied to the firm have surfaced in public records. Recent operational data is thin, limiting visibility into personnel changes, fund launches, or strategic shifts over the last two years. Structurally, Asset Management One differs from direct-investing asset managers by functioning as a pure allocator: it does not originate deals or manage single-strategy funds but instead curates exposure. This positions it as an access channel, not a manufacturer. Its governance and succession framework, as well as any regulatory filings beyond the Altss record, are not publicly available, leaving much of its operational architecture opaque.

## Questions

### How was Asset Management One formed?

Asset Management One was created in 2016 through the merger of DIAM Asset Management, Mizuho Trust & Banking's asset management division, and Shinko Asset Management. The consolidation combined the fund-management operations of Mizuho Financial Group and Dai-ichi Life Holdings, two of Japan's largest financial institutions. This merger gave the firm a dominant distribution footprint across Japanese bank channels and insurance-affiliated pension platforms.

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Last updated: 2026-08-11T02:43:31.692Z

Canonical page: https://altss.com/profile/asset-management-one

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