Metaplanet Inc., Japan’s largest bitcoin holder, has entered into an agreement to acquire 100% of Siiibo Securities Co., Ltd. In a deal worth about 2.1 billion yen, or approximately 13.1 million US dollars, the Tokyo-listed company. Announce On Friday, June 12th.
The acquisition, expected to close on July 13, 2026, represents the first major transaction under “Project Nova” – Metaplanet’s medium to long-term strategy to build… A financial platform centered around Bitcoin In Japan. Following the closing, Siiibo Securities will be renamed Metaplanet Securities Inc.
The deal gives Metaplanet something it has never held before: a Type I Financial Instruments Business Operator Registration, a license required under Japanese law to regulate and distribute financial products to retail investors.
This regulatory status, combined with Siiibo’s existing client base and online platform, positions the group to begin offering Bitcoin-related investment products to Japanese retail investors.
Siiibo Securities was founded in January 2019 and operates an online platform for privately placed corporate bonds – a sector of the market previously reserved for institutional investors and high-net-worth individuals.
The company has supported more than 40 issuers and facilitated more than 100 bond offerings, building one of the largest retail corporate bond records in Japan.
Metaplanet’s strategic rationale
Metaplanet owns 40,177 BTC as of May 31, 2026, with a net asset value of 457.6 billion yen, making it the leading cryptocurrency company. The third largest corporate Bitcoin holder In the world and the largest in Asia.
The company has spent the past two years accumulating bitcoin as a treasury reserve asset, a strategy that has been compared to that in the United States. Project Nova represents the next stage: turning that treasury into the backbone of the financial services business.
Simon Jerovich, president and CEO of Metaplanet, framed the acquisition as a structural shift.
“We do not view Bitcoin as a treasury reserve asset, but as a foundation for the next generation of financial ecosystems,” Jerovich said in the press release. “Siiibo Securities’ Tier 1 financial instruments business registration, corporate bond platform, and established client base give us the tools to make this vision a reality.”
Metaplanet has identified four key synergies it expects from the deal. The company plans to distribute Siiibo’s existing bond products to a shareholder base of approximately 250,000 investors. It also intends to develop BTC-linked financial products – including BTC-linked bonds – for distribution through the Siiibo platform.
The joint offering of bond and digital securities issues is planned in cooperation with Metaplanet Ventures Inc., focusing on investment companies in the field of cryptocurrencies and decentralized finance.
A pilot program for security tokens and other digital financial instruments is on the roadmap as well.
The merger will enable capital formation structures that were not possible before, said Kazuki Komura, CEO of Siiibo Securities.
“By combining the strengths of both companies in finance, technology and community building, we believe we can create new forms of capital formation and investment experiences,” Komura said.
Metaplanet said it will finance the acquisition from available cash and borrowings, with an option to draw on a bitcoin-backed credit facility carrying a total borrowing capacity of up to $500 million.
