Visa Inc.

Mastercard Incorporated

"There can be no Wild West in payments," Wells Fargo says, explaining why stablecoins don't threaten Visa and Mastercard's business

Two analysts at once advise buying shares of payment systems. Stablecoins are not a hindrance?

Amazon.com, Inc.

Walmart Inc.

E-commerce giant Amazon and one of the largest retailers, Walmart, are considering issuing stablecoins, a cryptocurrency whose exchange rate is usually pegged one-to-one to the U.S. dollar or other national currencies, sources told The Wall Street Journal. That could allow them to save billions of dollars in transaction fees companies pay to bank card issuers, as well as put pressure on traditional payment systems. Shares of Mastercard and Visa&nbsp; collapsed 6-7% on the news.

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Two analysts at once advise buying shares of payment systems. Stablecoins are not a hindrance?

Amazon and Walmart are thinking about issuing stablecoins. What should an investor worry about?