Amazon represents a low single-digit percentage of the retail market, and much larger retailers exist in every country where it operates.

Judge as of April 2019, using data for 2018 or early 2019. Two parts: (1) Amazon's share of total retail sales (including offline, as the claim means the retail market as a whole) is a low single-digit percentage, read as roughly 1–4%, both worldwide and in its main markets such as the US; (2) in every country where Amazon runs a retail operation there is at least one retailer with clearly larger retail sales in that country. True: credible market-share estimates (for example Census Bureau totals compared with Amazon's segment revenue or GMV, or eMarketer/Euromonitor data) put Amazon's share of total retail at about 1–4% globally and in its large markets, and in each such country a larger retailer exists (for example Walmart in the US, Tesco in the UK). Mostly true: both parts hold in substance, with a small exception, for example US share just above 4% on a GMV basis, or one minor market where no larger retailer clearly exists. Mixed: one part holds and the other does not, for example the share is low single digits but in some significant markets Amazon is the largest retailer, or there are larger retailers everywhere but the share in a major market is clearly above low single digits. Mostly false: the claim relies on a true global share figure but leaves out that Amazon's share in its key markets or of e-commerce is much larger, and the 'every country' part fails in several markets. False: Amazon's share of total retail in its main markets is clearly well above single digits, and it is the largest retailer in several of its markets.

Set before the research began.

1. E1 Amazon's share of the US e-commerce market is now 49%, or 5% of all retail spend | TechCrunch TechCrunch · 13 July 2018

   “Amazon is set to clear $258.22 billion in US retail sales in 2018, according to eMarketer’s figures, which will work out to 49.1 percent of all online retail spend in the country, and 5 percent of all retail sales.”

2. E2 Bezos’ stats ignore Amazon’s monopoly of U.S. e-commerce PolitiFact · 6 August 2020

   “For U.S. retail, Amazon does make up less than 4% of total sales, according to eMarketer. In 2019, Amazon accounted for 38.7% of U.S. e-commerce retail sales alone, and e-commerce retail sales accounted for 11.3% of the U.S. retail market by the end of 2019.”

3. E3 Bezos’ stats ignore Amazon’s monopoly of U.S. e-commerce PolitiFact · 6 August 2020

   “On a global scale, figures show Amazon made up about 1.12% of international retail sales in 2019, which is just over 1%.”

4. E4 Bezos’ stats ignore Amazon’s monopoly of U.S. e-commerce PolitiFact · 6 August 2020

   “Internationally, when we look at the entire world of retail (be it online or not), Amazon had the second-highest revenue of any retail seller in 2018, behind Walmart, which made $517.7 billion, according to the Kantar Group.”

eMarketer data put Amazon at 5% of all US retail sales in 2018 (E1), and a later PolitiFact review citing eMarketer gave under 4% for 2019 (E2). A later PolitiFact review put Amazon's worldwide share of retail sales at about 1.12% in 2019, a year after the 2018 judging period (E3). Together these show a low single-digit share, with the US figure at or just above the top of the 1–4% range. Kantar data shows Walmart had higher retail revenue than Amazon worldwide in 2018 (E4), which supports the existence of larger retailers, but no evidence confirms a larger retailer in every country, so that part is only partly supported.