Is Nu Stock a Buy Now?

The all-digital bank reports earnings this week, and investors will be watching.There's been a lot of excitement in the stock market so far in 2025, mostly related to artificial intelligence (AI). The DeepSeek launch took investors by surprise a few weeks ago, and since then there's been a torrent of high-profile earnings reports like those of Apple, Amazon, and Alphabet.Despite all that, the S&P 500 index is up only 3% this year. It's just off its all-time high, and valuations are looking expensive right n ...