Buying the Yokohama BayStars: baseball as advertising (2011)
The upshot of reading a loss-making ball club as “the most effective advertising”
The core of this decision lies in reading a loss-making ball club not as a source of losses but as advertising spend that raised the company’s name recognition and brand — an idea that swapped the backward-looking ring of the word “deficit” for the vocabulary of investment. As President Moriyasu noted, citing annual advertising and promotion outlays of just under $250.7M (¥20bn), the aim was less to advertise a product than to make up for a recognition that lagged the scale of the business, and to run recruitment and user acquisition to advantage. Measured on the same yardstick as ordinary advertising, the effect of a club’s name being reported over and over on national news made an annual loss of a little over $25.1M (¥2bn) not necessarily a costly purchase — such a calculation appears to have been at work.
That said, reading the club purchase as advertising alone cannot fully explain the turn to profit that followed. Under Jun Ikeda, DeNA rebuilt attendance, and in 2016 it acquired Yokohama Stadium to run club and ballpark as one. Reworking a club it had written off as an expense into a business that earned from both the game and the venue is what brought a utilisation rate above 90% and a move into the black five years after the acquisition. The initial “advertising” account was the doorway for stepping in while accepting the loss; the corporate effort beyond it made the difference that turned expense into asset. The 2024 Japan Series title and record attendance were a destination on the extension of that line.
Revenue and net margin, FY2006–FY2016
Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2011 onwards — after it was taken.
Source: securities reports
Read the full dossier in Japanese →
The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.
Other key decisions at DeNA
- 2009 From ad revenue to item billing: Kaito Royale (2009)
- 2010 Buying ngmoco: a bid at a global game platform (2010)
- 2015 The Nintendo alliance: a cross-shareholding for IP (2015)
- 2016 The WelQ shutdown: taking down all ten curation sites (2016)
- 2021 Changing presidents and cutting fixed costs (2021)
- 2026 The founder returns: Tomoko Namba, and an AI pivot (2026)
Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; the revenue chart is shown in yen. Exchange rates & sources — the full ¥/US$ table →
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- This page is provided for general information only and is not investment advice, nor a recommendation to buy or sell any security.
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- 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.
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