Fintech lending stocks Upstart and Affirm rally as investors eye strong growth and upcoming catalysts.

Upstart Holdings and Affirm Holdings stocks surged 14% and 7% respectively, signaling renewed investor confidence in the fintech lending sector. Upstart's rally is driven by strong Q4 2025 results, including 31% revenue growth and a profitable turnaround, alongside a leadership change with co-founder Paul Gu becoming CEO. Affirm's gains are supported by robust Q2 fiscal 2026 revenue growth of 30%, a positive outlook from Citi, and anticipation of its May 12 investor forum where medium-term growth targets may be set. Both companies remain down year-to-date but today's moves suggest fintech lending may be stabilizing and gaining momentum.