Visa is advancing its integration of stablecoins into its existing payment systems, according to Cuy Sheffield, head of Visa's crypto division. The annualized run rate for stablecoin settlements is approximately $4.5 billion, driven largely by demand for stablecoin-linked payment cards. However, Sheffield noted that stablecoin acceptance at merchants remains limited. Visa has initiated a pilot program in the United States, allowing select banks to settle transactions using the USDC stablecoin.