In August 2025, Japan’s SBI Holdings announced a joint venture with Startale Labs to develop a trading venue for tokenized securities and real-world assets (RWA). Startale’s founder created the Japanese blockchain Astar Network and co-developed Sony’s Soneium blockchain. Today the two firms announced the brand for the solution, Strium, alongside further details about the ambitious plans for the venture. The founders envisage Strium as a “global capital markets infrastructure” rather than merely a trading platform, positioning it as the “foundational exchange layer for Asia’s onchain securities markets.”
Strium will provide 24/7 trading and settlement of tokenized securities and RWA, both spot and derivatives. It also aims to reach all types of traders: institutional, professional and retail. Given that Strium incorporates a Layer 1 blockchain, that raises the question of whether it is a permissioned chain or permissionless.
“Strium is designed to support a hybrid approach: permissioned participation for regulated institutions alongside permissionless access for professional and retail participants,” Startale CEO Sota Watanabe told Ledger Insights via email. “This allows us to provide a flexible, compliant network while enabling broader onchain activity and liquidity across different ecosystems. We are actively validating this hybrid model, ensuring that value can flow seamlessly between Strium and traditional financial infrastructure.”
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