Consumer adoption of online grocery—led primarily by Amazon and Walmart—saw hockey-stick growth last year. As these two Goliaths vie for market control, conflicting reports have made it difficult to determine who has the momentum, and where consumers prefer to shop. Amazon currently holds the largest market share of online grocery. We estimate that Amazon’s US food and beverage sales amounted to $6.13 billion in 2019, or 23.7% of total US food and beverage ecommerce sales. However, a September 2019 survey conducted by The Retail Feedback Group found that 37% of US digital shoppers most recently purchased groceries from Walmart, compared with 29% who used Amazon.
Source: eMarketer