Economy Walmart could buy controlling stake in Flipkart as early as next week Updated : April 20, 2018 10:45 PM IST The US retail giant has been in talks with Flipkart for months to acquire a controlling stake in the firm as it looks to take on rival Amazon.com Inc Walmart's purchase of new equity is likely to value Flipkart at at least $18 billion. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.