Metaplanet Inc., Japan’s largest corporate Bitcoin holder, has entered into an agreement to acquire 100% of Siiibo Securities Co., Ltd. in a deal valued at approximately 2.1 billion yen, or roughly $13.1 million, the Tokyo-listed company announced on Friday, June 12.
The acquisition, expected to close on July 13, 2026, marks the first major transaction under “Project Nova” — Metaplanet’s medium- to long-term strategy to build a Bitcoin-centric financial platform in Japan. Following the close, Siiibo Securities will be renamed Metaplanet Securities Inc.
The deal gives Metaplanet something it has not held before: a Type I Financial Instruments Business Operator registration, the license required under Japanese law to structure and distribute financial products to retail investors.
That regulatory standing, combined with Siiibo’s existing customer base and online platform, positions the group to begin offering Bitcoin-linked investment products to individual Japanese investors.
Siiibo Securities was founded in January 2019 and operates an online platform for private placement corporate bonds — a market segment once reserved for institutional investors and high-net-worth individuals.
