Walmart is selling overstock prices on stock exchanges to get more business from its customers.
The online retailer says it’s helping retailers by increasing its share of the online retail market.
The move comes as Amazon is also expanding its reach through the digital world.
Overstock.com’s stock jumped over 500 points, or 1.2%, in premarket trading.
Wal-Mart’s stock dropped nearly 2%.
The move comes amid a widening market standoff between Amazon and Wal-mart.
The retailer’s chief financial officer, Jim McNerney, said on Tuesday that Wal-Marts shares had fallen 20% since the start of the year.
The stock has fallen about 2% this year.
Amazon’s stock was trading between $70 and $80 a share.