Walmart has a big opportunity to help reverse its online sales slump (WMT)

Walmart has an opportunity to revitalize its online sales through a key category that other retailers will have more difficulty in: online groceries.
The company's "click & collect" option on its website will not only bring more online traffic, but also more customers off-line and into its stores, Credit Suisse Analyst Seth Sigman said.
You can see Walmart's stock price in real time here.While some investors and analysts have nearly written off Walmart after it reported a slowdown in online