Japan’s Siiibo Securities to Rebrand as Metaplanet Securities on July 13

Japanese brokerage Siiibo Securities will officially change its name to Metaplanet Securities Co., Ltd. on July 13. This marks the latest step in Bitcoin treasury firm Metaplanet’s strategy to build a regulated Bitcoin-focused financial ecosystem in Japan.

The announcement was confirmed by Siiibo Securities and Metaplanet CEO Simon Gerovich on X, with Gerovich welcoming the brokerage into the Metaplanet Group. The rebranding follows Metaplanet’s agreement to acquire the licensed securities firm for approximately ¥2.1 billion ($13.1 million), a deal expected to close on July 13.

“We welcome everyone from SBI Securities to the Metaplanet Group. On July 13, we will embark on a new journey as ‘Metaplanet Securities,’” Gerovich wrote on X today.

“Together, we will deliver unprecedented income-generating products to investors across Japan. This is the next step toward building a financial ecosystem centered on Bitcoin.”

Siiibo証券の皆さんをメタプラネットグループにお迎えします。7月13日、「メタプラネット証券」として新たなスタートを切ります。… https://t.co/3T5GCSQavm

— Simon Gerovich (@gerovich) July 8, 2026

The name change represents more than a corporate rebranding. By acquiring Siiibo, Metaplanet gains a licensed securities platform that can develop and distribute Bitcoin-linked financial products to retail and institutional investors in one of Asia’s largest capital markets.

What is Metaplanet’s New Subsidiary Siibo

Siiibo Securities said it will accelerate initiatives to meet growing investor demand for yield-generating products after joining the Metaplanet Group.

Founded in 2019, Siiibo operates an online platform that connects companies seeking to issue private corporate bonds with investors. The firm currently supports around 40 corporate issuers and has facilitated more than 100 bond offerings. It also holds a Type I Financial Instruments Business license in Japan, allowing it to offer securities products under the country’s regulatory framework.

Following the acquisition, the company CEO Siibo informed that it plans to leverage Metaplanet’s expertise in Bitcoin treasury management to expand beyond traditional venture debt offerings. The brokerage aims to build a “BTC × Finance” platform by introducing Bitcoin-based investment products and other innovative yield-generating instruments tailored to Japanese investors.

The acquisition also gives Metaplanet regulatory capabilities it previously lacked, enabling it to structure and distribute Bitcoin-linked securities directly through its own licensed brokerage.

What Exactly is Metaplanet’s Project Nova Strategy

The rebranding is a key milestone in Project Nova which is Metaplanet’s long-term strategy to transform the company from one of the world’s largest corporate Bitcoin holders into a Bitcoin-native financial platform.

Backed by 40,177 BTC on its balance sheet, Metaplanet aims to originate, distribute, and manage Bitcoin-backed financial products.

This comes as currently the DAT is Asia’s largest corporate Bitcoin holder and the third-largest globally as of June, 2026.

Metaplanet’s Project Nova strategy targets Japan’s estimated ¥1,190 trillion ($7.4 trillion) pool of low-yield household assets, including cash deposits, government bonds, money market funds, and corporate bonds.

Through regulated entities such as the soon-to-be-launched Metaplanet Securities, the company plans to offer Bitcoin-linked yield products. It also aims to target asset management services, tokenized securities, digital credit instruments, lending, custody, and stablecoin payment infrastructure. These aim at creating new revenue streams beyond simply holding Bitcoin.

Thus, the July 13 launch of Metaplanet Securities marks the beginning of a broader effort to integrate Bitcoin with Japan’s traditional financial system.