Short PLTR as it's time for a pullbackPalantir Technologies Inc.BATS:PLTRalytExtremely High Valuation: Palantir's stock has soared, and it's now trading at over 200 times its forward earnings. Such a high valuation can be hard to sustain, making the stock vulnerable to a correction. The stock is up 28% in the last month. It is up close to 600% in the last year. Even though Palantir has good profit margins that may grow even more in the coming years, there is only so much margin expansion you can achieve.