Metaplanet, a US-based firm, has purchased $7M worth of Bitcoin, bringing its total holdings to almost 640 BTC.Metaplanet follows a strategy similar to MicroStrategy, storing Bitcoin as its reserve currency instead of traditional instruments.The company's stock price has tripled since adopting this strategy, rising over 532% in 2024 alone.Metaplanet also uses advanced techniques like selling put options to grow its Bitcoin reserves without taking on more financial risk.