When a stock rallies sharply, is a downward correction inevitable? That's the billion-dollar question for anyone who owns or is considering buying Palantir Technologies (NASDAQ:PLTR) stock. An argument can be made that Palantir shares are overvalued. As we'll discover, PLTR stock may appear to be stretched to the upside. Moreover, a commonly cited metric seems to suggest that Palantir Technologies is very richly valued. One might even conclude that Palantir stock is about to crash and will decline to $100 i ...