Data from ChannelAdvisor shows slowing sales momentum during the third week of December for the retail clients the firm tabulates e-commerce activity on.
Tracked sales through eBay (EBAY) were up 9.6% for the post-Thanksgiving period through the third week of December, while Amazon (AMZN) saw a 25.2% gain through ChannelAdvisor's system. Both marks indicate a decelerating trend for the period
eBay may have lost some ground as other retailers offered more extensive expedited shipping options.
ChannelAdvisor shifted the comparable tracking dates to align the Thanksgiving period holiday.