G-SIB (Global Systemically Important Bank)
The Financial Stability Board designates approximately 30 banks annually as G-SIBs based on size, interconnectedness, substitutability, complexity, and cross-jurisdictional activity. G-SIBs face higher capital buffers under Basel III and are the primary participants in CLS, RTGS, and interbank settlement systems. The GENIUS Act’s reserve tiering and the stablecoin custody landscape are shaped by G-SIB participation — JPMorgan (Kinexys), BNY Mellon, and Citi are building tokenized deposit infrastructure.
Canonical site: StableGSIB.com Cross-references: StableCLS.com, StableRTGS.com, StablePPSI.com