Palantir has been one of the best AI stocks to own for three years straight.Palantir Technologies (PLTR +4.14%) has been an exceptional stock pick over the past three years. In 2023, the stock rose 167%, in 2024 it was up 341%, and so far in 2025, it's up around 147%. Finding a stock that can double in one year isn't an easy task, but finding a stock that repeats that feat for three years in a row is practically unheard of.Can Palantir repeat this feat in 2026? Or is it due for a moderate year? Let's take a ...