This week, Walmart's shares crashed after the company reported a disappointing profit outlook.
Profits will fall 6% to 12% next year, the company said.
And the retailer's situation is likely to get worse rather than better, according to many analysts.
Until now, Walmart has been able to make huge profits by keeping worker wages low and using its size to negotiate cheaper prices than competitors, Brian Sozzi at The Street writes.
But the retail landscape is changing, and Walmart is increasingly irrelevant.
