Priceline perks up after Barclays points to margin potential

• Shares of Priceline (PCLN) are on watch after a timely upgrade from Barclays arrives.
• The investment firm moves to an Overweight rating from Equal Weight on its view profit margins will expand.
• "PCLN still stands out to us as an inexpensive name relative to structural trends and expected growth. We believe there is a valuation disconnect from concerns that are either timing-related or mostly played out," reads the note from analyst Christopher Merwin.
• PCLN +2.01% premarket to $1370.00.