Tyson Foods brands include Jimmy Dean sausages, Ball Park hot dogs and Tyson chicken strips.
Tyson Foods makes Jimmy Dean sausages, Ball Park hot dogs and Tyson chicken strips.
  • Tyson Foods shares sank to their lowest price in more than three years on Monday. 
  • The sell-off was sparked after the meatpacker unexpectedly swung to a second-quarter loss. 
  • Beef sales and volume fell in the quarter during a "challenging" period for meat sales. 

Tyson Foods shares on Monday tumbled to a three-year low as a drop in beef sales contributed to pushing the company to a quarterly loss and lowering its outlook for revenue.