Wendy's  (WEN) - Get Report shares were down 0.4% to $13.63 in early market trading Friday after rival McDonald's  (MCD) - Get Report announced that it will be using fresh beef in its Quarter Pounder burgers. 

Wendy's tag line has been that it always uses fresh, not frozen, beef in all of its burgers. 

Wendy's shares closed trading down 0.51% to $13.61 on Friday. 

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This story has been updated since its original 10:10 am EST publication