CoinMeta Data: On September 28, 2026, Citibank announced an expansion of its partnership with Coinbase to connect its $6 trillion payment network to a stablecoin payment system. This partnership will make each e-commerce platform a potential access point for stablecoins. Citibank's virtual accounts will automatically convert fiat currency into stablecoins and offer these balances an annual yield of 3.75%. The partnership will enable merchants to serve over 150 million stablecoin holders without the need to directly hold or manage digital assets. Citibank assumes the conversion risks, while merchants receive fiat currency in return. This move marks the rapid development of infrastructure for stablecoin acceptance, and Citibank's goal is to establish a seamless and interoperable payment infrastructure to meet customer needs.