In the last 6 years, Walmart (WMT) has slipped, and how.
It's still one of America's largest employers, but it's not as highly valued by investors.
There was a brief period last year when even Chinese online giant Alibaba was worth more than Walmart. Now, Amazon has overtaken it.
Walmart has been dogged by labor issues and it's responded by raising the minimum wage at 1,400 locations.
The company is caught in a federal investigation on an international bribery scandal and it is also investigating its own suppliers for possible instances of overcharging.
Whether customers will respond is another question.
