Amazon captured 30% of total sales in the electronics and appliances sector, solidifying its role as a leader in discretionary spending.Amazon's share of the total U.S. food and beverage market rose to 2.7% in 2024, signaling its growth as a serious competitor to Walmart.Amazon's aggressive pricing strategies, personalized shopping experiences, and digital advantage have contributed to its expanding market share.While Walmart struggles to increase its market share, Amazon continues to gain ground in nonessential categories, dominating the retail sector.