The Financial Espresso: Nu operational error; B3 & IPOs; Visa & OpenAI; Credit for app drivers

Research evidence excerpt

The Financial Espresso: Nu operational error; B3 & IPOs; Visa & OpenAI; Credit for app drivers

Global Research

15 June 2026ab

The Financial Espresso Equities

Latin AmericaNu operational error; B3 & IPOs; Visa &

OpenAI; Credit for app drivers Financial

Kaio Prato

Analyst

kaio.prato@ubs.com

Nubank founder admits 'bizarre' mistake that triggered fake message to +55-11-3513 6573

customers

Thiago Batista, CFA

According to Valor, Nubank was forced to address a brief reputational scare after a Analyst

small group of customers received a false in-app message suggesting the bank was thiago.batista@ubs.com

undergoing liquidation, which management later confirmed was caused by an +55-11-3513 6518

internal error rather than any real financial issue. Co-founder Ms. Cristina Junqueira Camila Azevedo

explained that a developer inadvertently triggered an internal communication Associate Analyst

protocol - likely via a code update - that is designed for extreme contingency camila.azevedo@ubs.com

scenarios such as bank resolution, causing Nubank’s own name to appear as a +55-11-2767 6881

default in the absence of a real case. The bank stressed that the glitch was quickly Bruno Kenji

identified and corrected, affected only a limited number of users, and had no Associate Analyst

impact on operations, stability, or security, while issuing apologies and tightening bruno.kenji@ubs.com

safeguards. +55-11-2767 6056

Olavo Arthuzo

The queue exists: B3 says it has up to 100 companies ready to go public Analyst

According to an interview with B3’s CFO, there are up to ~100 companies potentially olavo.arthuzo@ubs.com

ready to go public, including 50+ already fully registered and effectively on standby, +55-11-2767 6306

with the real bottleneck being weak investor demand rather than lack of supply.