According to Adobe, the total e-commerce sales from November 1 to December 31, 2016, hit $91.7 billion. This number represents a 11 percent year over year growth.
Web traffic to retailers was split evenly between desktop and mobile users, but most sales still happened from PC. According to Adobe's estimate, mobile devices accounted for 31 percent of sales while desktop generated 69 percent.
Besides Adobe, comScore also released e-commerce data for the same period. The firm said that U.S. consumers spent about $63.1 billion online during November and December.
Out of the 61 days period, Cyber Monday on November 28, was the largest single day of online spending. On that day, consumers were spending $2.7 billion, according to comScore.
However, the number of e-commerce sales was still shy from the overall holiday retail sales that exceeded $1 trillion, according to various estimates.
What this means, e-commerce on the holidays was just over 9 percent of the total. And out of that 9 percent, the retail giant Amazon was having almost 40 percent of it, according to Slice Intelligence.
Consumers that tend to shop online varied. Millennials are most likely to shop in stores (81 percent) compared with Baby Boomers (62 percent) and Gen Xers (73 percent). More than 75 percent of Millennials also expressed a preference for buying online from retailers that also had physical stores available.
The survey also found that 86 percent of Millennials used mobile devices in stores, for price comparisons and other functions.
