Metaplanet Inc., Japan’s largest Bitcoin holding company, has entered into an agreement to acquire 100% of Siiibo Securities Co., Ltd. he announced Friday, June 12.
The purchase, which is expected to close on July 13, 2026, is the first step under “Project Nova” – Metaplanet’s long-term construction strategy Bitcoin-centric investment platform in Japan. Finally, Siiibo Securities will be renamed Metaplanet Securities Inc.
The deal gives Metaplanet something it hasn’t done before: registration as a Type I Financial Instruments Business Operator, a license required under Japanese law to manufacture and distribute financial products to retail traders.
In order to stand up to the law, along with Siiibo there is a customer base and an online platform, the responsibility of the group to start offering Bitcoin-related currency trading to the Japanese person’s money.
Siiibo Securities was launched in January 2019 and operates an online platform for investing in corporate bonds – a segment of the market reserved for institutional investors and net worth individuals.
The company has sponsored more than 40 and managed more than 100 offerings, building one of the largest portfolios in the Japanese retail industry.
Good ideas for Metaplanet
Metaplanet held 40,177 BTC as of May 31, 2026, with a net worth of 457.6 billion yen, making it the the third largest Bitcoin company in the world and the largest in Asia.
The company has spent the last two years assembling Bitcoin as a hedge fund, a strategy it has compared to Strategy in the United States. Project Nova represents the next step: turning the economy into the backbone of the financial industry.
Simon Gerovich, president and CEO of Metaplanet, framed the acquisition as a strategic change.
“We see Bitcoin not just as a store of wealth, but as the foundation of the next generation of finance,” Gerovich said in a press release. “Siiibo Securities’ Type I Financial Instruments Business Registration, lending platform, and established customer base give us the tools to make that vision a reality.”
Metaplanet outlined four synergies it expects from the deal. The company plans to distribute existing Siiibo products to approximately 250,000 shareholders. It also aims to create BTC-linked financial products – including BTC-linked bonds – to be distributed through the Siiibo platform.
The combined underwriting of bonds and digital securities is organized in partnership with Metaplanet Ventures Inc., with a focus on cryptocurrency and financial companies.
A pilot program for security tokens and other digital tools is on the way.
Kazuki Komura, CEO of Siiibo Securities, said the merger will make development plans impossible before.
“By combining the strengths of both companies in finance, technology, and human infrastructure, we believe we can create new models of investment and economic activity,” said Komura.
Metaplanet said it will offer cash-on-hand financing and lending, with the option to take out Bitcoin loans that take total borrowings up to $500 million.
