It's demonstrating incredible growth in an up-and-coming industry, If you're looking for a high-growth stock in an exploding industry operating in an underpenetrated region, look no further than the Brazilian fintech Nu Holdings (NU -2.66%). This lesser-known Warren Buffett holding is demonstrating incredible performance, and there are many reasons to be confident about its continued prospects. Here are three reasons to buy: 1. Nu has barely penetrated some of its markets Nu is still a fairly young company, ...