Many tech and artificial intelligence (AI) stocks trade at huge valuations, implying big earnings growth in the years to come, which is why investors are so bullish on these companies. They are buying earnings and growth in the future. The fintech SoFi Technologies (SOFI 3.52%) and the artificial intelligence company Palantir Technologies (PLTR 2.81%) both fit this description. Each has had a big year, with SoFi's stock up over 41% this year and Palantir's up over 296%.With 2024 winding down, Wall Street is ...