Mike Cagney is rebuilding Wall Street's back office on blockchain rails.

Mike Cagney, best known for co-founding SoFi, is making a second bet on financial infrastructure — this time targeting the settlement and clearing layers that Wall Street has run on legacy systems for decades. The thesis: blockchain can replace the fragmented, slow plumbing that sits beneath institutional finance.

The move fits a broader pattern of fintech founders pivoting from consumer lending into B2B infrastructure, where margins are thicker and switching costs are high. Blockchain-based settlement promises faster finality, reduced counterparty risk, and a single source of truth across participants — problems that have resisted incremental fixes for years.

No token or specific partnership details are disclosed at this stage, but the direction signals growing conviction among serious fintech operators that the institutional layer — not retail speculation — is where the next durable…