After several months of inactivity, Metaplanet Inc., a Japanese Bitcoin treasury company, has expanded its BTC reserves , adding thousands of new coins to its already extensive portfolio. The company announced the completion of its 2025 quarterly accumulation cycle just two days before the new year, acquiring additional BTC as prices declined . Metaplanet Closes Year With Extra Bitcoin Bitcoin appeared to be on discount as Metaplanet ramped up its accumulation efforts at the close of 2025. The treasury company completed another round of BTC purchases, taking advantage of market weakness and BTC’s price sitting below $100,000 , to expand its holdings. On December 30, Metaplanet released a report detailing its recent Bitcoin buy and overall accumulation strategy , outlining its total holdings to date, along with the aggregate cost basis and average purchase price. During the Fourth Quarter (Q4) of 2025, the treasury company acquired 4,279 BTC at an average price of ¥16,325,148 per coin. The total investment for this purchase reached ¥69.855 billion. Following the acquisition, Metaplanet’s total BTC holdings increased to 35,102 BTC. The treasury company’s cumulative BTC investment hit ¥559.727 billion, with the average price per Bitcoin across all holdings standing at ¥15,945,691. The treasury company has revealed that the recent purchase is part of its ongoing Bitcoin Treasury Operations, which include strategic and targeted buying through the sale of BTC options. In US dollar terms, Metaplanet reported purchasing additional BTC during Q4 2025 for approximately $451.06 million at an average price of around $105,412 per BTC. As of December 30, 2025, the company’s total Bitcoin position was acquired for roughly $3.78 billion at an average price of roughly $107,606 per coin. The Chief Executive Officer (CEO) of Metaplanet, Simon Gerovich, reported on X that the company has achieved a BTC yield of 568.2% Year-to-Date (YTD) for 2025. This yield reflects the cumulative result of the BTC treasury’s acquisition activities throughout the previous year. Metaplanet Reports Strong But Slowing BTC Returns In the report, Metaplanet achieved a BTC Yield of 309.8% from October to December 2024 and 95.6% from January to March 2025. The company maintained momentum with a 129.4% BTC Yield from April to June before growth slowed to 33% in the third quarter. From October to December 2025, Metaplanet’s BTC Yield further declined to 11.9%, reflecting a gradual deceleration in Bitcoin’s performance . The treasury company explained that BTC Yield measures the percentage change in Total Bitcoin Holdings relative to fully Diluted Shares Outstanding and serves as a key performance indicator of its BTC acquisition strategy. The report also disclosed that Metaplanet calculates its BTC Gain by applying the BTC Yield to Total Bitcoin Holdings at the start of each period.
