ITUB vs NU: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: ITUB is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. ITUB and NU share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined ITUB and NU exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Itau Unibanco Holding S.A. (NYSE: ITUB) is the largest private-sector bank in Brazil and one of the largest financial institutions in Latin America, offering retail and commercial banking, credit cards, insurance, asset management, and investment banking across Brazil and other markets. The U.S.-listed security is an American Depositary Receipt tied to the Brazil-listed preferred shares (ITUB4), so its dollar value moves with both the underlying share price and the Brazilian real. Itau, together with Bradesco and Santander Brasil, forms the private-bank core of a sector where these three plus the state-owned banks control the bulk of system assets.

Full ITUB guide

Nu Holdings is the parent of Nubank, a digital bank built entirely around a mobile app rather than branches. It earns money the way a bank does: net interest income from credit cards and personal loans, plus fees and interchange, increasingly funded by a large, low-cost deposit base. By March 2026 deposits had grown roughly 29% year over year to nearly $42 billion and the loan book had passed $30 billion, while the company kept its cost structure unusually lean, reporting an efficiency ratio under 18%. Growth comes from two levers stacked together: signing up new customers (over 135 million globally, with Brazil past ~115 million, Mexico past ~15 million, and Colombia approaching ~5 million) and raising how much each customer transacts and borrows over time.

Full NU guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• ITUB drivers: High and durable profitability; Interest-rate and credit cycle.
• NU drivers: Customer growth still compounding; Monetizing the existing base.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: The largest risks are macro and currency: ITUB is an ADR whose dollar value depends on the Brazilian real, so a weakening real can wipe out local-currency gains for U.S. For NU, the dominant risk is the consumer credit cycle.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick ITUB if you believe its drivers more; NU if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the ITUB and NU guides.

ITUB. Itau trades at a low-double-digit price-to-earnings multiple, a discount to large U.S. banks, reflecting Brazilian country and currency risk despite a much higher return on equity. The dividend yield is meaningfully above that of most developed-market megabanks. Reported figures are in Brazilian reais, so the dollar ADR value also depends on the BRL/USD exchange rate.

NU. Figures are approximate and tied to the asOf date; verify live numbers before acting. NU trades at a premium to traditional banks on a P/E basis, which reflects its growth and high returns on equity rather than incumbent-bank multiples. The valuation already embeds continued customer growth and contained credit losses, so the figures matter most as a gauge of how much optimism is priced in.

Headline figures (approximate, July 2026): ITUB shows q1 2026 recurring managerial result ~R$12.3B (~$2.5B), q1 2026 net income ~R$11.9B (up ~11% YoY), q1 2026 net interest income ~R$29.7B, recurring roe ~24.8%; NU shows revenue (q1 2026 quarterly) ~$5.0 billion, a record single quarter, customers ~135 million+ across Brazil, Mexico, Colombia, net income (q1 2026) ~$871 million, a record first quarter, return on equity ~high-20s to ~30% (historical range).

ITUB and NU are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined ITUB and NU exposure against your real portfolio. It is not an investment adviser.