Mark Zuckerberg presents at the Meta Connect event in September.Josh Edelson/AFP/Getty Images Meta and Amazon shares soared Friday. The Big Tech giants' gains came after they posted stellar results for the last three months of 2023. Apple had a rougher ride, dipping 3% at the opening bell as sales in China disappointed. Meta Platforms and Amazon added more than a quarter of a trillion dollars to their combined valuations on Friday as the Big Tech stocks soared after strong fourth-quarter earnings reports.Meta shares climbed 16% at the opening bell, adding $160 billion to the Facebook and Instagram owner's market capitalization.