With Palantir's most recent revenue growth rate coming in at around 36%, the stock rising nearly 400% over the past year should throw red flags up for investors. The business growth rate is nowhere near the stock growth rate, which could be a clue that the stock is significantly overvalued.

With a market cap of $201.3 billion, the Denver, Colorado-based Palantir Technologies Inc. (PLTR) builds and deploys software platforms for the intelligence community to assist in counterterrorism investigations and operations in the United States,