Metaplanet crosses 10,000 BTC threshold, overtakes Coinbase
Japanese investment firm Metaplanet has purchased an additional 1,112 BTC for 16.88 billion yen, approximately $117 million, bringing its total Bitcoin holdings to 10,000 BTC. The acquisition pushes Metaplanet past Coinbase, whose corporate treasury stands at 9,267 BTC according to Bitbo data, and elevates the Tokyo-listed company to the seventh-largest publicly traded Bitcoin holder globally.
The purchase, reported by Cointelegraph, represents one of the most aggressive single-step corporate Bitcoin acquisitions by an Asian public company to date. Metaplanet’s average acquisition cost across its entire 10,000 BTC stack now sits at roughly 13.9 million yen per Bitcoin, equivalent to approximately $96,400 at prevailing exchange rates. That cost basis places the firm in a relatively comfortable position relative to spot market levels, giving it considerable cushion against near-term price volatility.
The milestone carries symbolic weight beyond the raw numbers. Coinbase, as one of the largest cryptocurrency exchanges in the world and a publicly traded entity on Nasdaq, has long been viewed as a bellwether for institutional crypto exposure. That a Japanese investment firm with a far shorter history of Bitcoin accumulation has now surpassed Coinbase’s own treasury holdings underscores how rapidly the corporate Bitcoin treasury landscape is evolving. It also highlights a structural shift: companies whose primary business is not crypto-native are increasingly willing to hold Bitcoin on their balance sheets at scales that rival or exceed those of industry incumbents.
For more on how public companies are building Bitcoin positions, see our Bitcoin coverage.
The 10,000 BTC figure is significant in another respect. It places Metaplanet within striking distance of the upper tier of corporate Bitcoin holders, a group historically dominated by MicroStrategy and a handful of mining firms. The firm’s ascent to seventh place means it has leapfrogged not only Coinbase but also several other well-known corporate holders in a relatively compressed timeframe. The pace of accumulation suggests that Metaplanet is not merely dipping its toes into Bitcoin as a diversification play but is instead executing a deliberate, board-approved strategy to make Bitcoin the centrepiece of its treasury operations.
Zero-coupon bonds and the road to 210,000 BTC
The latest Bitcoin purchase did not occur in isolation. Metaplanet’s board simultaneously approved the issuance of $210 million in no-interest bonds, with the proceeds earmarked specifically for further Bitcoin acquisitions. The decision to issue zero-coupon debt to fund Bitcoin buying is a notable financial engineering choice. It means the firm is effectively betting that the appreciation of its Bitcoin holdings will more than offset the opportunity costs and dilution effects associated with the bond issuance, since no interest payments are required over the life of the instruments.
This approach mirrors, at least in spirit, the strategy pioneered by MicroStrategy in the United States, which has used convertible notes and other debt instruments to finance its Bitcoin purchases. However, Metaplanet’s use of no-interest bonds adds a distinct wrinkle. Zero-coupon bonds are typically issued at a discount to face value and redeemed at par, meaning the implicit cost is built into the issuance price rather than paid through periodic coupons. For a company whose core thesis is that Bitcoin will appreciate significantly over time, this structure allows it to lock in funding without draining operating cash flow for interest payments.
The more striking revelation is Metaplanet’s stated endgame. The firm has publicly committed to holding 210,000 BTC by the end of 2027. Having reached 10,000 BTC, that means Metaplanet still needs to acquire approximately 200,000 BTC over the next 18 months. To put that figure in perspective, 200,000 BTC represents a substantial fraction of the total Bitcoin supply that changes hands on public markets in any given year. The scale of the commitment raises serious questions about execution: whether sufficient Bitcoin supply will be available at prices Metaplanet is willing to pay, and whether capital markets will continue to fund the strategy at the required pace.
The target of 210,000 BTC is not arbitrary. It echoes Bitcoin’s own supply cap of 21 million coins, with 210,000 being one-hundredth of that total. Whether that numerical resonance is intentional or coincidental, it signals a level of ambition that goes well beyond conventional treasury diversification. Metaplanet is effectively positioning itself as a leveraged Bitcoin proxy, and its board is backing that positioning with both equity market enthusiasm and debt issuance capacity.
The implications for Bitcoin’s circulating supply are worth considering. If Metaplanet were to successfully execute even a significant fraction of its remaining acquisition target, it would remove a meaningful quantity of Bitcoin from active trading markets and place it in long-term corporate treasury storage. This dynamic, often referred to as the supply shock effect, has been cited by analysts as a factor that could contribute to upward price pressure, particularly during periods when new Bitcoin issuance from mining rewards is already constrained by the halving cycle.
Equity market response and the treasury premium
The market’s reaction to the announcement was immediate and pronounced. Metaplanet’s stock rallied more than 22% on Monday on the Tokyo Stock Exchange, reaching an intraday peak of 1,860 yen. The shares are now up more than 417% year-to-date, making Metaplanet one of the best-performing publicly listed stocks in Japan in 2025, and certainly one of the top performers globally among companies with a Bitcoin treasury strategy.
The equity rally illustrates what market participants have begun calling the treasury premium. Companies that explicitly adopt Bitcoin as a primary reserve asset appear to command a valuation premium that exceeds what their underlying business fundamentals would otherwise justify. In Metaplanet’s case, the firm’s original business as a Japanese investment entity has been effectively transformed by its Bitcoin strategy into something closer to a closed-end Bitcoin holding company, with the equity trading at a premium that reflects both the value of the Bitcoin holdings and investor expectations of future accumulation.
This premium effect is not without precedent. MicroStrategy’s stock has traded at a significant premium to the net asset value of its Bitcoin holdings for extended periods, and other companies that have adopted similar strategies have experienced comparable, if less dramatic, valuation uplifts. What is notable in Metaplanet’s case is the speed and magnitude of the re-rating. A 417% year-to-date gain suggests that investors are pricing in not only the current 10,000 BTC holdings but also a high probability that the firm will successfully execute a meaningful portion of its 210,000 BTC target.
The risk profile of this dynamic is worth flagging. The treasury premium works in both directions. If Bitcoin prices decline materially, or if Metaplanet’s ability to raise capital through bond issuance is constrained, the equity could re-rate downward with equal speed. The use of no-interest bonds adds leverage to the structure, amplifying both upside and downside scenarios. Investors buying Metaplanet shares at current levels are effectively making a leveraged bet on Bitcoin’s trajectory over the next 18 months, with the firm’s execution capabilities as an additional variable.
The Tokyo Stock Exchange’s apparent comfort with a publicly listed company pursuing this strategy is itself noteworthy. Japanese regulatory authorities have not moved to restrict Metaplanet’s Bitcoin treasury activities, and the stock’s inclusion in normal trading on the TSE suggests that the approach is viewed as legitimate within the framework of Japanese securities regulation. This stands in contrast to some jurisdictions where corporate Bitcoin accumulation has faced greater scrutiny or regulatory friction.
Broader implications for corporate adoption
Metaplanet’s milestone has implications that extend well beyond the firm itself. The fact that a Japanese public company has surpassed Coinbase in Bitcoin holdings sends a signal to corporate boards and treasury officers across Asia and beyond. It demonstrates that Bitcoin treasury strategies are not confined to US-listed companies or crypto-native firms, and that capital markets in other jurisdictions are willing to support, and in some cases enthusiastically reward, this approach.
The competitive dynamic among corporate Bitcoin holders is also intensifying. With Metaplanet now ranked seventh among publicly traded companies, the pressure on firms lower in the rankings to either accelerate their own accumulation or justify their relative inaction is likely to grow. Companies that have small or token Bitcoin holdings may face investor questions about why they have not pursued a more aggressive strategy, particularly if the treasury premium effect continues to drive outperformance for firms with large positions.
The regulatory implications are more nuanced. Metaplanet’s strategy has not triggered any apparent regulatory pushback in Japan, but the scale of its planned accumulation, if realised, could attract greater scrutiny from financial regulators concerned about concentration risk, disclosure standards, and the systemic implications of a single public company holding 210,000 BTC. Japanese authorities have generally taken a progressive stance on cryptocurrency regulation compared with many other developed markets, but the unprecedented nature of Metaplanet’s target means there is no established regulatory template for handling a corporate Bitcoin treasury of that magnitude.
For Bitcoin markets more broadly, the continued flow of corporate demand represents a structural support factor. While exchange-traded funds have dominated the institutional inflow narrative over the past year, direct corporate accumulation remains a distinct and important demand source. Unlike ETF flows, which can reverse quickly if investor sentiment shifts, corporate treasury purchases tend to be longer-duration in nature. Companies that have made Bitcoin a core part of their treasury strategy are generally reluctant to sell, both because doing so would undermine the strategic narrative they have communicated to shareholders and because realising gains would create tax and accounting consequences that many firms prefer to defer.
Closing analysis
Metaplanet’s arrival at 10,000 BTC marks a genuine inflection point in the corporate Bitcoin treasury narrative. The firm has moved from relative obscurity to seventh place among public companies in a short period, and its stated target of 210,000 BTC by the end of 2027 sets a benchmark that will test both its own execution capabilities and the depth of Bitcoin’s available supply. The equity market’s 22% single-day rally and 417% year-to-date gain confirm that investors are pricing in aggressive expectations. The real test now is whether Metaplanet can sustain its capital-raising pace and whether Bitcoin’s price trajectory cooperates with the firm’s cost assumptions. If it succeeds, Metaplanet will have proven that the corporate Bitcoin treasury model is scalable well beyond the United States. If it falls short, the treasury premium that currently underpins its equity valuation could compress rapidly.
