CurveBlock
Settlement finality is the legal point at which obligations between parties are irrevocably discharged. For traditional markets, finality is usually achieved via Real Time Gross Settlement (RTGS) using central bank reserves. When securities and payments migrate onto DLT or tokenised ledgers, regulators and the Bank of England pay attention to whether transfers can achieve equivalent legal finality and whether payment obligations are backed by central bank money.
The Bank of England’s work on financial market infrastructure and settlements highlights two practical risks: (1) operational or legal uncertainty around whether a token transfer is recognised as final in insolvency scenarios, and (2) whether payments related to trades are settled in safe, central bank money. If a platform settles tokenised trades using commercial bank balances that are exposed to credit risk, investors can face counterparty exposure that is different from traditional RTGS settlement.
To address these concerns, market participants and policymakers consider constructions such as atomic settlement (simultaneous exchange of tokenised security and payment), the use of payment-versus-payment mechanisms, and the integration of settlement finality provisions into legal frameworks. Where central bank money cannot be used directly, strong arrangements for segregated accounts and credit risk mitigation become essential.
For retail investors in fractional digital shares, these settlement design choices affect how promptly and securely transactions complete, and what happens if a platform or its banking provider fails. Investors should seek transparency on how settlement finality is achieved and whether cash legs are held in protected, centralised arrangements or exposed to commercial bank credit risk.