Group 1 - Citigroup's venture arm has made a strategic investment in stablecoin payments platform BVNK, joining Visa in backing the company [1] - The size of the investment from Citigroup has not been disclosed [1] - The stablecoin sector has experienced significant growth, aided by formal regulatory frameworks in major jurisdictions like the U.S. and Hong Kong [2] Group 2 - BVNK processes over $20 billion in payments annually and has notable clients including Worldpay, Flywire, and dLocal [3] - There is increasing interest in stablecoins for the settlement of on-chain and crypto asset transactions, as noted by Citi Ventures head Arvind Purushotham [3]