GOLDMAN: 3 reasons to sell Dunkin Donuts (DNKN)

Dunkin Brands' stock price is down 2.28% as of 10:02 AM EST March 29.
The drop follows Goldman Sachs analyst Karen Holthouse's downgrade of the parent company of Dunkin Donuts to a "Sell" from a "Neutral" rating and lowering of her price target to $47 from $48.
Holthouse believes that Dunkin could drop for three reasons:
1)Headwinds including winter storms and increased competition
2) Slowing growth
3) High valuation
The analyst notes that the two big winter storms in the Northeast Un