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Fed-Up Banker Quit for a Startup, and Now She’s a Billionaire

  • Junqueira’s stake in Nubank worth $1.1 billion at top of range
  • Brazilian digital bank she co-founded to price IPO Wednesday
Cristina Junqueira, in 2019.
Cristina Junqueira, in 2019.Photographer: Rodrigo Capote/Bloomberg

Cristina Junqueira knew she needed to make a change.

She’d left management consultancy to get an MBA from Northwestern University and had ended up in banking, overseeing a portfolio of credit cards at Brazil’s Itau Unibanco Holding SA. She rose through the ranks for four years until 2013, when she quit  -- tired of selling people products she said they didn’t actually want.