Visa and Mastercard stocks rose on Friday after The Wall Street Journal reported that Walmart and Amazon, among other retailers, are considering issuing their own stablecoins for customers, a move that could drain revenues from traditional payment service providers. The newspaper noted that the decisions to issue stablecoins (cryptocurrencies tied to stable assets like the US dollar) depend on the passage of the GENIUS Act, which was introduced in Congress and needs regulation and requires holding reserves of dollars or other assets.