Dunkin' Downgraded At Piper, Stock Now Worth Only $42 Firm Says By: Benzinga via Benzinga October 23, 2015 at 10:26 AM EDT The share price of Dunkin Brands Group Inc (NASDAQ: DNKN) has declined 24.32 percent over the last three months, hitting a low of ... Read More >> Related Stocks: Dunkin' Brands Group