Japanese investment firm Metaplanet has acquired 619.7 Bitcoin worth $60 million, bringing their total holdings to 1,762 BTC valued at $168 million.Metaplanet's average purchase price for all Bitcoin acquisitions is $75,600 per BTC.The company reported a BTC yield of 310% in Q4 2023, a significant increase from the previous quarter.Metaplanet rebranded as a Bitcoin Treasury company and raised $62 million through bonds for Bitcoin purchases.