#JP Morgan
The first U.S. bank to create and successfully test a digital coin: their cryptocurrency is called JPM and is backed up by dollar.
PHX Fiat-Pegged Coin Released by Philippines Major Bank, Fund Transfers Kick off Successfully

One of the biggest banks on the Philippines has released its own stablecoin and is already conducting remittance transactions with other local banks
Bank of America Files ‘Ripple-Based’ Patent for Wiring Payments

Bank of America has submitted a patent for a system of payment settlement, saying it is a Ripple-based product