Metaplanet Acquires Siiibo Securities in Japan

Office building with large upward arrow, sealed contract document on desk, and stacked yen banknotes nearby

Metaplanet to Acquire Siiibo Securities for 2.1 Billion Yen – Deal Grants Securities License for Bitcoin-Linked Products in Japan

Key Takeaways

Metaplanet will acquire 100 percent of Siiibo Securities for approximately 2.1 billion yen, or about 13.1 million dollars.
The transaction is expected to close on July 13, 2026, after which Siiibo will be renamed Metaplanet Securities Inc.
The acquisition provides Metaplanet with a Type I Financial Instruments Business Operator registration under Japanese law.
Metaplanet plans to launch Bitcoin-linked investment products for retail investors in Japan.
The deal is the first major transaction under the company’s medium to long term strategy known as Project Nova.

Acquisition Details and Regulatory Significance

Metaplanet Inc., a Tokyo-listed company and Japan’s largest corporate Bitcoin holder, has entered into an agreement to acquire 100 percent of Siiibo Securities Co., Ltd. The purchase price is approximately 2.1 billion yen, equivalent to around 13.1 million dollars. The company announced that the transaction is scheduled to close on July 13, 2026.

Following completion, Siiibo Securities will operate under the new name Metaplanet Securities Inc. The acquisition gives Metaplanet access to a Type I Financial Instruments Business Operator registration. Under Japanese law, this license is required to structure and distribute financial products to retail investors.

Until now, Metaplanet did not hold such a registration. By acquiring Siiibo, the company gains both regulatory approval and an operational distribution platform. This combination allows it to directly offer financial products to individual investors in Japan.

Siiibo’s Existing Platform and Track Record

Siiibo Securities was founded in January 2019 and operates an online platform focused on private placement corporate bonds. This segment has traditionally been associated with institutional investors and high net worth individuals.

According to the information released, Siiibo has supported more than 40 issuers and facilitated over 100 bond offerings. The company has built one of the largest track records in Japan’s retail corporate bond space. Its existing customer base and digital infrastructure form part of the strategic rationale for the acquisition.

For Metaplanet, this provides an established channel through which new financial instruments can be introduced without building a securities platform from scratch.

Project Nova and the Shift Toward a Bitcoin-Centric Platform

The transaction marks the first major step under Metaplanet’s initiative known as Project Nova. The company describes this program as a medium to long term strategy aimed at building a Bitcoin-centric financial platform in Japan.

As of May 31, 2026, Metaplanet held 40,177 BTC with a reported net asset value of 457.6 billion yen. This makes it the third largest corporate Bitcoin holder globally and the largest in Asia, according to the company’s disclosure. Over the past two years, Metaplanet has accumulated Bitcoin as a treasury reserve asset.

With Project Nova, the company is moving beyond holding Bitcoin on its balance sheet. The stated objective is to use Bitcoin as the foundation for a broader financial services business.

Simon Gerovich, President and CEO of Metaplanet, said in the company’s announcement that the group views Bitcoin not only as a reserve asset but as the basis for what it describes as the next generation of financial ecosystems. The acquisition of Siiibo is presented as the structural step needed to implement that approach within Japan’s regulated financial framework.

Planned Bitcoin-Linked Products and Distribution Strategy

Metaplanet outlined several areas of expected synergy. First, the company plans to distribute Siiibo’s existing bond products to its own shareholder base, which comprises approximately 250,000 investors.

Second, Metaplanet intends to develop and distribute Bitcoin-linked financial products through the Siiibo platform. These may include BTC-linked bonds designed for retail investors in Japan.

The group also plans joint underwriting of bond and digital securities issuances in collaboration with Metaplanet Ventures Inc. The focus is expected to include venture companies active in cryptocurrency and decentralized finance.

In addition, a pilot program for security tokens and other digitized financial instruments is on the roadmap. This indicates that the company aims to combine traditional bond structures with blockchain-based formats under its regulated securities entity.

Kazuki Komura, CEO of Siiibo Securities, stated that the combination of both companies’ strengths in finance, technology, and community building would enable new forms of capital formation and investment experiences.

Financing Structure of the Transaction

Metaplanet stated that it will fund the acquisition through a combination of cash on hand and borrowings. The company also retains the option to draw on Bitcoin-backed credit facilities. These facilities have an aggregate borrowing capacity of up to 500 million dollars.

The disclosure indicates that Bitcoin holdings may serve as collateral for financing activities, linking the company’s treasury strategy with its expansion into regulated financial services.

Our Assessment

The acquisition of Siiibo Securities gives Metaplanet a regulated securities license and an operational platform to distribute financial products to retail investors in Japan. It represents a structural shift from holding Bitcoin as a treasury asset to building a Bitcoin-linked financial services business. By combining its existing Bitcoin reserves with Siiibo’s bond platform and regulatory status, Metaplanet is positioning itself to issue and distribute BTC-linked instruments within Japan’s established financial framework.