Parts Trends & Statistics
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Two Mega-Categories Are Keeping US Ecommerce Penetration Low
Article
Jul 16, 2025
Ecommerce share varies greatly across categories. The average ecommerce penetration across US retail sales of 16.7% masks wide disparities: Rates range from as high as 70.1% for books, music, & video to just 5.9% for auto & parts.
Amazon holds on to 80% of the books, music, and video market online
Article
Dec 15, 2022
Amazon will account for 38.2% of all US ecommerce sales this year, per our estimates. In addition to dominating the books, music, and video category, Amazon will capture 50.3% of computer and consumer electronics ecommerce sales and 47.0% of office equipment and supplies ecommerce sales in the US.
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