Dunkin' Brands Group Inc.'s stock is on track to have its worst day since the doughnut and coffee chain went public over four years ago. The stock tumbled $5.16, or 11%, in afternoon trade, after the company provided a disappointing sales growth outlook. The next biggest percentage selloff was when it slid 7.5% on Nov. 1, 2011, after the company released its first quarterly results as a public company; the second-biggest price decline was when the stock slumped $3.17 on Dec. 18, 2014, after the company cut its sales growth outlook. The stock, which is now down 23% from its record close of $56.58 on July 13, 2015, in on track to close at the lowest level since Jan. 9. The stock went public on July 27, 2011, closing its first day at $27.85, or 47% above its $19 initial public offering price.
Copyright © 2015 MarketWatch, Inc.