The online retailer founded by a former Amazon executive has completed it’s 4th round of funding raising $500M. Fidelity Investments led the latest round which values the company at $1.5B. So far, they have raised $720M over 4 rounds. U.S. e-commerce sales in November & December are expected to increase almost 14% this year to $79.4B, this critical period will be a stern test for the retailer to prove their valuation