Jet.com is in talks to sell itself to Walmart. The talks are continuing and may not lead to a deal.

For Walmart, pursuing Jet.com in what would be one of its biggest takeovers, a deal would help to reproduce its off-line dominance in the online world. The company has pumped millions of dollars into efforts to expand its e-commerce business, such as offering more items online and expanding locations for its grocery pickup service.

Walmart is also trying to take advantage of its position as the nation’s largest grocer, nearly tripling the number of markets where customers can order groceries and pick up curbside.

Jet’s model of encouraging bulk buying would complement Walmart in areas where it has lagged.