Tokyo-listed investment firm Metaplanet has reported a 116% yield for shareholders from its ongoing Bitcoin purchases.The company saw a substantial increase in yield compared to the previous quarter, attributed to a notable rise in its Bitcoin holdings.Metaplanet acquired over 450 BTC in October alone, bringing its total holdings to 855.5 BTC, valued at over $56.1 million.The firm adopted the 'BTC Yield' as a key performance indicator (KPI) and will provide regular updates on Bitcoin purchases.