Nubank partnered with the blockchain developer Polygon to develop Nucoin and an affiliated customer rewards program.

Executives at the Dallas company said they feel positive about the remainder of the year, though declining deposits could create issues going forward.

Yet the Detroit company's stock fell more than 8% after its earnings report, indicating the market "seems more tentative" than Ally about the credit outlook, one analyst said.

Profits, revenue and net interest income fell short of expectations for the Buffalo, New York, company. It stashed away $50 million of reserves, pointing to worsening forecasts for the global economy and growth in its consumer portfolio.

Sixteen bank members of the Alloy Labs Alliance have come up with a set of rules for banking as a service, and who is responsible for what.

David Deborde has been named president and chief executive, taking over for his mother, Cheryl, who is retiring.