Metaplanet's $13 Million Siiibo Securities Purchase Is Actually a Plan to Build Japan's First Bitcoin Bond Market, Says Benchmark

Metaplanet's ¥2.1 billion ($13 million) acquisition of Siiibo Securities is widely misunderstood as a minor brokerage purchase, according to Benchmark analyst Mark Palmer . In reality, the deal is the foundational infrastructure for Project Nova — Metaplanet's plan to create a Japan-based Bitcoin-backed fixed-income market . Here is a full breakdown of the strategy, the regulatory license, the proposed product structure, and the current status.

The Core Strategy: Build a Bitcoin-Bond Capital Market, Not Just Fund Itself

Key distinction: The brokerage will not be used to raise money for Metaplanet's own Bitcoin purchases. Instead, it will serve as an open platform for other companies to issue bonds to fund their Bitcoin treasury strategies . Metaplanet's Bitcoin Strategy Director Dylan LeClair explicitly stated that Metaplanet Securities will operate as a platform for third-party companies, not just Metaplanet itself. The goal is to enable other firms adopting Bitcoin treasury strategies to issue debt through the brokerage to fund their own Bitcoin purchases . Benchmark frames this as the foundation for a whole new asset class in Japan, not a single-issuer product .

The Regulatory License: Type-1 Financial Instrument Business Operator

The acquisition gives Metaplanet a Type-1 Financial Instrument Business Operator license (Japan's "Tier-1" financial products dealer license) regulated by the Financial Services Agency (FSA) . This license is what allows Metaplanet to structure, underwrite, and sell securities in Japan — a prerequisite for issuing any Bitcoin-collateralized bonds . Siiibo Securities was already a licensed Type I securities firm and a pioneer of Japan's online corporate bond market .

Planned Product Structure: Bitbonds

The proposed instruments, called "Bitbonds," are Bitcoin-collateralized tokenized bonds. According to Benchmark and multiple sources, the planned structure looks like this:

Element	Detail
Product name	Bitbonds (Bitcoin-collateralized tokenized bonds)
Target yield	4%–6% annualized
Collateral	Bitcoin held by the issuer
On-chain vision	Migrate bonds onto blockchain, settle via yen stablecoin (24/7 settlement)
Secondary market	Planned for future development

The proposed structure: companies pledge Bitcoin as collateral to issue bonds paying 4–6% to investors. The long-term roadmap envisions these instruments moving entirely on-chain with stablecoin settlement and a functioning secondary market .

Joint Feasibility Study with JPYC and Progmat

On July 10, 2026, Metaplanet launched a structured feasibility study alongside JPYC (a yen-pegged stablecoin issuer) and Progmat (a tokenization platform) . The study is testing:

• Whether Metaplanet's own Bitcoin can serve as collateral for tokenized digital bonds
• 24/7 settlement through a yen stablecoin (JPYC)
• The technical and regulatory framework for on-chain bond issuance

This is explicitly a research and feasibility study — no product, no rates, and no issuance date have been set . Regulatory approval from Japan's FSA remains a necessary next step before any launch .

Current Status: Ambitious Vision, Zero Products Launched

Despite the scale of the ambition, no Bitbonds have been issued and no product has been launched . Every source confirms the initiative remains in the planning and exploratory stage . Benchmark's report is an assessment of potential, not an announcement of a live product. The issuance timeline and specific terms have not been disclosed . The company itself frames Project Nova as a medium- to long-term strategy .

Benchmark's Assessment

Benchmark argues the market significantly underestimates the acquisition's value . Palmer's view is that the deal gives Metaplanet a regulated foundation to build what could become Japan's first Bitcoin-bond secondary market — a platform that could eventually serve multiple corporate issuers, settle on-chain around the clock, and open a new yield-bearing asset class for Japanese investors . The key risk: this is still entirely prospective, and regulatory, structural, and adoption hurdles remain unresolved.