Metaplanet's stock has lost nearly half its value this year — down 47% year-to-date and 30% in the past month alone — even as the company keeps piling on Bitcoin. The firm now holds roughly 40,177 BTC, acquired at an average cost of about $104,106 per coin, for a total outlay of $4.18 billion. The slide pushed its market-to-net asset value ratio to 0.90, triggering a capital allocation rule that lets the company buy back its own shares at a steep discount to the Bitcoin backing them.
The mNAV Trigger
Metaplanet's policy kicks in when the market-to-net asset value (mNAV) ratio falls below 1.0x. At 0.90, the company's stock costs less than the net value of its Bitcoin stash per share. Buying back shares under these conditions is mathematically the same as acquiring Bitcoin at a discount to spot price — a rare arbitrage for a public company that treats its treasury like a strategic reserve. The current mNAV discount means every yen spent on repurchases yields more than a yen's worth of Bitcoin exposure for remaining shareholders.
BTC Yield as the North Star
CEO Simon Gerovich publicly reaffirmed that BTC Yield — the growth in Bitcoin per diluted share — is the primary metric guiding capital allocation decisions. For the first quarter of 2026, Metaplanet reported a BTC Yield of 2.8%. That's the lens through which management evaluates everything, from debt issuances to equity raises to the buyback program now underway. Gerovich has not added new public targets beyond the existing plan, but the emphasis on per-share Bitcoin growth signals that the company is willing to shrink share count when the math works.
The 555 Million Plan and the Road Ahead
Metaplanet's '555 Million Plan' calls for 100,000 BTC by the end of 2025 and 210,000 BTC by 2027. With 40,177 BTC on hand, the company is roughly 40% of the way to the first milestone — a milestone that technically passed last year. The pace of accumulation will likely need to accelerate to hit the 2027 target, and the buyback mechanism provides one channel for smart capital deployment. The stock remains the third-largest publicly traded corporate Bitcoin holder, behind Strategy (formerly MicroStrategy) and Twenty One Capital, but the steep share price decline puts pressure on management to show that the strategy is creating value for equity holders, not just growing the Bitcoin treasury. The next move on the buyback front — how aggressively Metaplanet leans into repurchases at current levels — will be a concrete test of whether the policy is just a guideline or a real lever.
