StoneCo Ltd. (STNE), a financial technology company in Brazil, is up 20% in extended hours trading at $41.44 on higher than expected earnings. It is now 70% above the IPO price of $24 paid by Todd Combs of Berkshire Hathaway in October, 2018. StoneCo Ltd. is a financial technology company based in Brazil, the fourth-largest payment processor by volume in that country. Brazil is the fourth-largest market for non-cash transaction volumes in the world, which gives the company a lot of scope for growth.