Open Up Group

Absorbing Yumeshin in an all-share merger, then retiring both names (2021)

Key decision·2021· Open Up Group — the full company history →

The ¥45.6bn price tag left on the books

Taking in a listed company with ¥58.6bn of revenue without spending a single yen of cash looks like a deft piece of work. But paying in shares is not the same as not paying. Existing shareholders were diluted at a ratio of 0.63, and on top of that the value of the assets acquired did not survive the impairment test three months later. The figure of ¥29.435bn in the construction segment is the result of rewriting, at the same moment, both the outlook for the construction business the company had entered on its own the year before and the outlook for the construction business inherited from Yumeshin.

Even so, the merger itself left numbers behind. Construction turned profitable in the year to June 2022, with ¥36.9bn of revenue and ¥5.3bn of profit, and group revenue grew from ¥98.8bn to ¥187.9bn in four years. The Yumeshin name, running from the 1976 Sato Architectural Design Office, disappeared from the corporate name in January 2023, and the BeNEXT name adopted in 2020 disappeared at the same time. What remained was the goodwill figure — recognized at ¥71.7bn in April 2021 and cut to ¥45.605bn by the year end — and the schedule allocating it across construction, machinery/electrical, IT and overseas.

Revenue and net margin, FY2016–FY2026

Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2021 onwards — after it was taken.

Source: securities reports

Read the full dossier in Japanese →

The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.

Other key decisions at Open Up Group


Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; the revenue chart is shown in yen. Exchange rates & sources — the full ¥/US$ table →


Disclaimer

  • This page is provided for general information only and is not investment advice, nor a recommendation to buy or sell any security.
  • Figures are compiled independently and include our own estimates, approximations and machine-processed data; we make no warranty as to their accuracy or completeness.
  • Sources are primarily each company’s securities reports and other public filings, but errors and omissions may remain.
  • Any use of this information is at the reader’s own risk. Past performance does not indicate future results.
  • Company names, logos and other marks belong to their respective owners.

Data API

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Method Endpoint Returns
GET /api/companies.json All companies
GET /api/2154/manifest.json Resource index
GET /api/2154/history.json History overview
GET /api/2154/timeline.json Chronology
GET /api/decisions.json All management decisions (index)
GET /api/2154/decisions.json Management decisions (index)
GET /api/2154/decisions/{slug}.json One decision (full dossier)
GET /api/2154/executives.json Executives
GET /api/2154/shareholders.json Major shareholders
GET /api/2154/financials.json Financial statements
GET /api/2154/financials-longterm.json Long-term results
GET /api/2154/segments.json Business segments
GET /api/2154/regions.json Sales by region
GET /api/2154/workforce.json Workforce