Stablecoins used for payment would be a monumental shift in commerce.

The numbers back this up. In the most recent quarter, Walmart brought in $165.6 billion in revenue, up 2.5%. Global e-commerce sales jumped 22%, and its advertising business grew 50%. Membership ...

At the moment, the stablecoin market is worth just over $250 billion, but it's growing fast. Citigroup projects that the total amount of outstanding stablecoin could hit $1.6 to $3.7 trillion by 2030.

In order for either company's stablecoin initiative to succeed, its customers would have to trust them. A potential downside for consumers is that stablecoins could add another layer to a process ...