Citi downgrades Tupperware, says it 'stayed too long' at the party

An employee of Tupperware Brands Corporation is at work on the production line at the company's plant in Joue-les-Tours, France, on the day of its 40th anniversary.
Jean-Francois Monier | AFP | Getty Images

Tupperware Brands' pandemic boom is unraveling as the company faces a troublesome macroenvironment, Citi said.