Though things appeared dire for Palantir (NYSE: PLTR) at the start of September as it was hit with the same downward pressure that saw the stock market erase more than $1 trillion in the first week of the month, the discussion surrounding the technology company has since turned bullish.A major reason for the change in tune has been the announcement that PLTR is set to join the S&P 500 index on September 23, a move that is bound to both increase the stock’s visibility and cement its position as a major Ameri ...