KapStone Paper and Packaging downgraded By: MarketMinute.com Stock News January 25, 2016 at 12:34 PM EST Macquarie downgraded KapStone Paper & Packaging Corp. (NYSE: KS) from a Neutral rating to an Underperform rating sending the stock price plummeting $3.84 to $13.62. Related Stocks: Kapstone Paper and Packaging Corp