Abundant funding and surging enthusiasm about advances in artificial intelligence have boosted stock prices for Affirm and Upstart over the past year. That has helped valuations rebound from a rout in 2022 and 2023 when rising interest rates made it more costly for the companies to raise new capital.

https://www.wsj.com/finance/affirm-gets-big-financing-check-from-liberty-mutual-71b08757