Stocks making biggest moves premarket: Under Armour, Walmart, AMC, GameStop, Canada Goose and more

Walmart shopping bag is seen in Krakow, Poland on February 9, 2024.Check out the companies making headlines in premarket trading.Under Armour — The sportswear maker's Class A shares slumped 11% and its Class C stock fell 9% after it issued lower-than-expected full-year earnings guidance. Under Armour now expects earnings in the range of 18 cents to 21 cents while analysts polled by FactSet had forecast 59 cents.Canada Goose — The coat maker jumped more than 12% after beating Wall Street estimates for sales ...