Amazon.com Inc (NASDAQ:AMZN) stock is gapping to two-year highs today, after the Big Tech giant's strong fourth-quarter results. A record-breaking holiday shopping season boosted profits in the last quarter, with help from generative artificial intelligence (AI) features in its cloud and e-commerce businesses, which the company hopes to continue to grow in 2024. Amazon stock hit $171.31 at its peak today, last seen up 7$170.41. Should these gains hold, it will be the stock's best day since its 8.3% pos ...