Data also revealed that Black Friday outperforms Cyber Monday in regard to online sales.
Slice Intelligence said Amazon took a 38 percent share of online sales the week of Cyber Monday.
DynamicAction also tracked inventory and average order volume for the period from Black Friday to Cyber Monday.
Britain’s Black Friday weekend saw footfall on the high street rise, although online shopping proved to be a disappointment.
Global brands offered Black Friday and Cyber Monday deals to secure major gains.
Workers are urged to call with complaints about Black Friday working conditions.
This year, U.S. online holiday sales are expected to grow 13 percent compared to 2015 and exceed $100 billion.