Palantir Technologies stock (NASDAQ: PLTR) has been on a tear this year, posting another surge over the past week. The stock has climbed more than 18% in just five trading days and has jumped close to 2.5x since early January and now trades above $185 per share. After such a rapid ascent, should investors holding sizable gains cash out? While the timing and scale of any pullback are impossible to predict, it’s worth examining the forces behind the rally and the risks to Palantir stock.This photograph hsow t ...