Ecommerce Stock Index Falls 8.1% in September 2026
The ecommerce stock index fell 8.1% in September, while the online retail and Marketplace subindexes declined 14% and 9%, respectively; eBay rose about 2%.
What are the key facts?
- 1Ecommerce stock index fell 8.1% in September 2026
- 2Online retail subindex fell 14%
- 3Marketplace subindex fell 9%
- 4eBay rose about 2% in the index
What happened?
Digital Commerce 360 reported that the Baird/Digital Commerce 360 Ecommerce Stock Index fell 8.1% in September 2026. The online retail subindex declined 14%, while the Marketplace subindex fell 9%. However, researchers still expect North American online consumer spending to continue growing in the fourth quarter of 2026, with the previous forecast of approximately 6% year-over-year growth still having room to rise. The report said this does not mean market demand has disappeared; rather, platforms, consumers, and capital markets are becoming more sensitive to margins, promotion intensity, and customer acquisition costs. eBay rose about 2% in the index, and secondhand goods, value-for-money products, and platform-based transactions may continue to attract attention. This information applies to sellers operating on major North American platforms, particularly those making inventory and advertising budget decisions ahead of Black Friday.
What does this mean for cross-border sellers?
The decline in the ecommerce stock index does not mean North American demand has disappeared, but platforms, consumers, and capital markets are paying closer attention to margins, promotion intensity, and customer acquisition costs. Sellers should reduce reliance on single bestsellers and deep discounts while evaluating value-for-money products, secondhand or refurbished goods, essential accessories, and multichannel opportunities.
What should sellers do now?
- 1This week, calculate the selling price, platform fees, procurement costs, advertising spend, and post-promotion profit for the main SKUs in each North American store. Identify products facing margin pressure or relying on deep discounts, and create a prioritized adjustment list.Profit calculator
- 2This week, place the same group of essential accessories, value-for-money products, and alternative-brand products across North American platform channels for comparison. Record the operating differences among online retail, Marketplace, and eBay, and produce a channel testing recommendation table.Marketplace fee compare
- 3This week, review inventory and advertising budgets for each store ahead of Black Friday. Categorize products as single bestsellers, essential accessories, secondhand or refurbished goods, and products with clear functional value, then create an actionable inventory and advertising adjustment list.Procurement List