Palantir's stock fell 7% on Tuesday as Wall Street analysts raised concerns about the company's elevated valuation and "Big Short" investor Michael Burry revealed a short position in the software company.During an interview with CNBC's "Squawk Box" on Tuesday, CEO Alex Karp ripped into short sellers, calling their moves "market manipulation."Karp called the positions "super triggering" and said they are "shorting one of the great businesses of the world.""Honestly, I think what is going on here is market ma ...