Metaplanet Inc., a publicly listed Japanese company, has added 319 more BTC at an average price of ¥11.8 million per coin, bringing its total holdings to 4,525 BTC worth approximately ¥58.1 billion. Despite market downturns, its stock rose 0.57% in 2025. Using the BTC Yield metric, Metaplanet measures its accumulation efficiency. It partners with EVO FUND, issuing zero-coupon bonds to raise funds without paying interest. Though shares are issued, dilution is controlled. Inspired by U.S. firms, Metaplanet is aggressively building a Bitcoin treasury, positioning itself as a BTC pioneer in Asia.