Nubank also had the highest default rate between them (some 6%).
It was great when it was created (fully digital, no credit score check for a credit card), but it is now dealing with the same problems as the big banks
To be fair, you have to compare credit portfolios by product and customer size. That is how the Central Bank reports and tracks these numbers.
Nubank offers consumer credit (credit card, personal loans), but you're comparing portfolios that include mortgages, large companies, industry, agriculture, etc.
Similarly, the default rate of the entire portfolio varies according to the product mix, so you can't compare that way.
Credit portfolio in 2023:
Itaú - $1176 billion
Banco do Brasil - $1109 billion
Bradesco - $877 billion
Nubank - $91 billion
Nubank also had the highest default rate between them (some 6%).
It was great when it was created (fully digital, no credit score check for a credit card), but it is now dealing with the same problems as the big banks