Metaplanet, a Japanese publicly traded company, has aggressively expanded its Bitcoin holdings, recently acquiring an additional 1,005 BTC for $108 million, bringing its total to 13,350 BTC valued at approximately $1.31 billion. This move, part of its "555 Million Plan" to raise $5.4 billion for acquiring 210,000 BTC by 2027, has positioned Metaplanet as the fifth-largest corporate Bitcoin holder, surpassing Tesla, Galaxy Digital, and CleanSpark. The company, often compared to MicroStrategy, funds its purchases through zero-interest bond issuances, like the recent 30 billion yen ($208 million) bond, and views Bitcoin as a hedge against inflation and fiat devaluation. Despite a stock price dip after announcing its ambitious plan, Metaplanet’s Bitcoin-centric strategy has driven a 350% year-to-date stock surge and a $BTC Yield of 129.4% in Q2 2025, reflecting strong investor confidence.