Japanese investment firm Metaplanet Inc. has expanded its Bitcoin treasury with an additional 156 BTC, bringing its total holdings to 2,391 BTC. 

According to Metaplanet’s official announcement on Mar. 3, the latest purchase was made at an average price of 12.95 million yen ($85,483) per Bitcoin (BTC), totaling 2.021 billion yen ($13.34 million).

Metaplanet has actively accumulated assets through capital market operations since formally integrating Bitcoin into its business plan. Since July 2024, its Bitcoin holdings have expanded rapidly, rising from 161 BTC to 2,391 BTC.

During the latest announcement, the company also revealed its BTC Yield, a key performance indicator which calculates the ratio of Bitcoin accumulation to share dilution. Following a 309.8% yield in Q4 2024, Metaplanet’s current BTC yield from Jan. 1 to March 3, stands at 31.8%.

Metaplanet has been aggressively raising capital through bond issuances and stock purchase rights to fund its Bitcoin acquisition strategy. The company raised 4 billion yen ($26.4 million) on Feb. 2025, when it issued its 6th Series of Ordinary Bonds to EVO FUND. 

These were zero-coupon bonds, meaning they carried no interest payments. To guarantee a self-sustaining funding strategy for its Bitcoin purchases, the company intended to redeem them using the proceeds from stock acquisition rights.

By Feb. 19, Metaplanet had repaid 2 billion yen ($13.2 million) of its bonds ahead of schedule, clearing the remaining 2 billion yen by Feb. 21. As with its previous sale, the company issued a fresh bond worth 2 billion yen ($13.2 million) on Feb. 27, under its 7th Series of Ordinary Bonds. The date of maturity for these bond is August 26, 2025.

As of Mar. 3, Metaplanet has invested a total of 29.83 billion yen ($196.87 million) in Bitcoin, with an average buying price of 12.47 million yen ($82,322) per Bitcoin.