Metaplanet has signed an agreement to acquire all shares of Siiibo Securities Co., Ltd., a licensed Type 1 financial instruments business in Japan. The company is known for operating an online platform for individual corporate bonds and is considered one of the early players in this segment.
After the planned closing in July, Siiibo Securities will be renamed Metaplanet Securities. The deal marks Metaplanet’s first major acquisition and is part of its broader plan called Project Nova, which aims to build a Bitcoin-centred financial ecosystem.
The company said this move will help expand its financial services footprint in Japan while strengthening its position in regulated securities markets.
We are pleased to announce that Metaplanet has entered into an agreement to acquire 100% of Siiibo Securities, a licensed Type I securities firm and a pioneer of Japan’s online corporate bond market. Following closing, expected in July, the company will be renamed Metaplanet… pic.twitter.com/1S6o2GXjP1
— Simon Gerovich (@gerovich) June 12, 2026
Why is Metaplanet entering the securities business?
Metaplanet said the acquisition is linked to the large amount of idle capital in Japan. It noted that around 1,190 trillion yen is currently held in cash and low-yield financial products. As Japan moves from a long deflationary period into inflation, more capital is expected to shift toward higher-yield instruments.
By bringing Siiibo Securities into its group, Metaplanet aims to offer new financial products that generate yield, including Bitcoin-related instruments. The company said this will be supported by its existing Bitcoin holdings of 40,177 BTC, which it describes as the foundation of its financial strategy.
Is Metaplanet building a broader Bitcoin-focused strategy in Japan?
Metaplanet noted that the purchase is an early step in building a wider Bitcoin-based financial system in Japan. Through Siiibo’s regulated securities license and online bond platform, the company plans to develop new investment products for retail investors.
The company also expressed respect for Siiibo Securities founder Kazuki Komura and his team, saying it will continue building on their work while expanding services under the new structure. Metaplanet added that the goal is to introduce new yield opportunities to Japanese investors while integrating Bitcoin into regulated financial services over time.
What does this mean for Japanese investors?
For Japanese investors, the deal signals easier access to Bitcoin-focused financial products through regulated channels. By acquiring Siiibo Securities, Metaplanet can work within Japan’s existing financial framework while expanding its Bitcoin-linked strategy.
This could open the door for more structured Bitcoin exposure in Japan, especially for investors who prefer regulated brokerage platforms instead of direct crypto exchanges. It also suggests that Bitcoin-linked investment products may become more common in Japan’s traditional finance sector over time.
Meanwhile, Metaplanet secured approximately $854 million through a third-party allocation of 107.4 million ordinary shares and 1.07 million stock options, the company announced on March 16, 2026.
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