Nu's Revenue Surge Masks Rising Credit Costs and Capital Erosion

What happened

Nu Holdings reported Q1 2026 revenue of $5.32 billion, up 42% year over year, with customer count reaching 135.2 million and monthly ARPAC rising to $15.9. However, headline growth came with a sharp rise in managerial cost of credit to $1.79 billion from $1.04 billion a year earlier and an increase in consolidated NPL 15-90 to 5.0% from 4.1% in Q4 2025. Brazil's CET1 ratio fell to 11.3% from 13.0%, and risk-adjusted NIM declined to 9.5% from 10.5%, signaling that funding growth consumed more capital than profits generated. The Motley Fool's assertion that growth continued "without sacrificing credit cost or quality" is contradicted by these reported metrics, which show reserve build and early delinquency deterioration. Investors should treat the article's optimism as out of sync with the actual quarterly filings.

Implication

The core bull case hinges on Mexico's bank launch and a recovery in risk-adjusted NIM, but current data show the opposite: credit costs are escalating even as revenue grows. If Brazil CET1 drops below 11.3% or NPL 15-90 stays above 5.0% after the Mexico launch, the thesis shifts to a capital-allocation triage scenario with likely downside to $11. Conversely, if Brazilian capital stabilizes and risk-adjusted NIM recovers above 9.5% without further delinquency rise, the stock can re-rate toward $15-18. Until then, the risk/reward at $14 is unattractive, and investors should wait for the next quarterly filing before committing new capital. Position sizing should remain capped, as the market is only now repricing the transition from asset-light fintech to capital-intensive lender.

Thesis delta

The article's claim that growth continues without sacrificing credit cost or quality is directly refuted by Q1 2026 filings showing a 72% year-over-year jump in managerial cost of credit and a 90bps sequential rise in NPL 15-90. Our WAIT rating is reinforced rather than changed, as the evidence of rising reserve intensity and capital consumption outweighs the positive revenue momentum. The thesis now requires even stronger proof from the next two quarters that Mexico's expansion and Brazil's capital position can stabilize simultaneously.