Japanese investment firm Metaplanet has purchased an additional 619.70 BTC amidst a dip in the crypto market.The latest purchase totaled 9.5 billion yen ($60 million) and brings Metaplanet's total BTC holdings to 1,761.98 BTC.Metaplanet has been actively buying and accumulating Bitcoin, with a total investment of over 20.872 billion yen.The company's Bitcoin acquisition strategy has resulted in significant BTC yield over a given period.