Nu Holdings Ltd. (NYSE:NU) reported its first-quarter financial results after the bell Tuesday. Here's a look at the highlights.  The Details: Nu Holdings reported quarterly revenue of $2.7 billion which beat the analyst consensus estimate of $2.49 billion by 8.28% and represents a 66.77% increase over revenue of $1.62 billion from the same period last year. Nu Holdings added 5.5 million customers in the first quarter, reaching a total of 99.3 million customers globally, compared to 59.6 million only two ...