Why Nu Stock Plunged 20% in the First Half of the Year

Nu Holdings’ shares are down ~20% in 1H 2026 on a steady decline in confidence tied to tougher competition, economic worries, and a higher valuation, with no single new catalyst cited. Operationally, it added ~4 million customers in 1Q 2026 to reach 135 million total and grew Mexico to ~15 million customers (3rd-largest financial institution), while ARPAC rose from $12 to $16. The stock now trades at ~22x trailing 12-month earnings near a recent all-time low, suggesting the pullback is being weighed against continued growth and expanding charters (Brazil/Mexico, plus initial U.S. approval).

Analysis

The market is still pricing NU like a high-growth fintech, but the more important mechanism is that it is becoming a deposit-funded, cross-sell-heavy bank with operating leverage. That matters because incremental revenue can scale faster than incremental opex only if credit costs stay contained; once the product mix shifts toward lending and higher-income customers, small underwriting slippage can erase a lot of the perceived cheapness quickly.

Competitive pressure is also changing shape. Incumbent banks in Brazil and Mexico do not need to beat NU on acquisition speed to hurt returns; they can defend with lower funding costs, deeper product bundles, and slower but stickier relationship banking. The U.S. charter is real optionality, but near term it is mostly a narrative asset; the actual 1-3 month driver will be whether deposit mix, delinquency, and net interest margin hold up as the company pushes into more balance-sheet-intensive products.

The contrarian angle is that the stock may be less expensive than it looked a year ago, but not necessarily cheap if growth normalizes from here. The market could be underestimating the value of a regulated deposit franchise in Latin America over 6-18 months, while simultaneously underpricing how quickly consumer stress in Brazil/Mexico can show up in credit metrics. The thesis is falsified if charge-offs or delinquency inflect higher over the next two quarters, or if customer growth stays strong but ARPAC stalls.

Bottom line: this is not a momentum chase; it is a conditional long that depends on monetization improving faster than credit risk and competition.

Key Decisions for Investors

• Initiate only a starter long in NU on weakness, sized below normal risk budget, with a 6-12 month horizon; add only if the next 1-2 quarters show stable delinquency and continued ARPAC expansion.
• Do not buy the stock solely on the valuation reset; treat 22x trailing earnings as fair-to-full until credit metrics confirm the higher monetization mix is durable.
• For existing longs, hedge with a partial Brazil consumer macro offset via EWZ or BZQ depending on portfolio direction, because the first real downside catalyst is macro-driven credit deterioration rather than user growth.
• Set a hard watch item on quarterly charge-offs, delinquency, and NIM: if any of those deteriorate meaningfully over the next two reports, reduce or exit the position.
• If NU continues to grow customers without credit slippage, the cleaner expression is to hold for 6-18 months rather than trade around the story; the upside is multiple resilience, not a near-term catalyst pop.