Japanese company Metaplanet Inc. has acquired an additional 108.786 Bitcoins, bringing their total holdings to 639.503 Bitcoins worth $40.5 million.Metaplanet is working with other companies, like startup Hoseki, to ensure a seamless Bitcoin strategy.The adoption of a Bitcoin strategy has led to a 500% increase in Metaplanet's stock market value year-to-date.Following the announcement of the additional Bitcoin acquisition, Metaplanet's stock market rallied over 13%.