XP -6.1%, Nu -3.3% — Fintech Hits the Wall Without a Catalyst
XP Investments (XP) fell 6.14% to $16.82 in Brazil's worst single-stock session. Nu Holdings (NU) dropped 3.27% to $12.73. No earnings announcement or regulatory ruling drove the move — which is the concerning part. When Brazil's digital banking leaders de-rate without a trigger, it typically signals Selic trajectory anxiety (high rates compress Nu's NIM) or broader EM fintech de-risking from global institutional portfolios. Watch Nu's next quarterly for any net interest margin guidance; if Selic stays above 10% through 2026, Nu's credit portfolio economics deteriorate meaningfully.