Shoppers around the world spent $2.86 trillion on retail goods purchased on the web in 2018, an 18.0% uptick from $2.43 trillion the previous year, Internet Retailer estimates. The top 10 retailers in online sales last year accounted for 15.1% of all ecommerce globally, according to the newly released 2019 Top Performers in Global Ecommerce report.

For 2017, the same 10 retailers took a 14.5% slice of the worldwide online sales pie. The big players have been driving growth, as dominant names like Amazon.com Inc. continue their quest to capture market share. This means movement at the top of the leader board has an outsized impact on how the overall ecommerce landscape shapes up.

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