Walmart has succeeded in achieving the leading position in the retail industry. Walmart now stands as the biggest retailer in the world. However, the external factors constitute pressure on the company that must be address carefully. By analyzing the five forces of external factors we will define the nature and power of our rival power in the market. The five factors are competitors from rival, potential new entrants, substitute products, supplier bargaining power and customer bargaining power all of these competitive forces affecting Walmart position. Competition from rival sellers: The strongest of the five-competitive force is often the rivalry for buyer patronage among competing sellers of a product or service. The intensity of competitive rivalry is strong in the retail industry. In 2017, Walmart stores price stock 70,12% percent, but this is hard to keep up among aggressive rivals. Amazon is number one in competing Walmart especially in online retailer and now opining fiscal stores starting with Amazon Campus store in 2015, available at several college campuses in US the Amazon Campus stores serve as a central hub where student retrieve deliveries from lockers and drop off returns, all free of charge. Over the past three years, while Walmart’s sales grew by 8.6 %, revenue at Amazon has nearly doubled. Then, Costco is also major competitor to Walmart, particularly to Sam’s because of its low price. Costco is high aggressiveness retail firms due it sells