Nu Holdings (NU 0.53%) has already proven it can grow. In 2025, it delivered strong revenue expansion, rising net income, and solid return on equity.But growth was never the most challenging part.The real test now is whether Nu Holdings can withstand a credit cycle without cracking. Growth is easy in a favorable environmentNu Holdings' core profit engine remains consumer lending, particularly unsecured credit in Brazil and, increasingly, in Mexico. When economic conditions are stable, this model scales beau ...