Swedish payments firm Klarna said on Monday it is partnering with consumer finance app OnePay to offer installment loans for purchases at retail giant Walmart in the United States.

The move will provide Walmart's customer base with payment options, with direct integration at checkout planned this year.

BofA Securities analyst Jason Kupferberg said the decline in Affirm Holdings (AFRM) stock after a new Walmart/Klarna partnership is overdone, and Affirm should be able to manage any potential loss in business.