Metaplanet's Siiibo Securities acquisition could unlock bitcoin-backed "Bitbonds," with plans for 4–6% yields, stablecoin settlement and an onchain fixed-income market

Progmat's yer infrastructure story — Japan's established security token rail, built for exactly this kind of issuance, with JPYC yen settlement layered on so Japanese retail never has to touch a crypto wallet. Metaplanet brings $2.6B in BTC collateral; Siiibo brings the Type I Financial Instruments license that would have taken years to acquire from scratch. Distribution was always the gap, and this acquisition sealed it. Against near-zero JGB yields, 4-6% settled in yen ain't a DeFi pitch — it's a proposition Japanese institutional money can actually hear. The single tripwire: BTC draws down 40%-plus while bonds are outstanding, Metaplanet's collateral position be fully public, and every bondholder's watchin' the same ticker. Me read be this sails — one open flank. 🦑

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