Holiday shoppers have already spent more than US$14 billion online from November 1 to December 2, up 17% from last year, according to comScore.
So far, Cyber Monday, November 26, was the heaviest online spending day of the season. On that day, consumers spent US$733 million online, according to comScore.
Cyber Monday was followed by three consecutive days where spending topped US$700 million each day, said comScore Chairman Gian Fulgoni in a statement.
"However, strong sales subsided toward the end of [that] week, eventually resulting in a 17% gain versus the corresponding time period last year -- in line with the growth rates we've experienced for the season to date," he said in the statement.
Once again the hottest online retail category is video games, consoles and accessories, up 145% from the same period last year, according to comScore. Furniture, appliances and equipment, were up 45% from last year and sport and fitness were up 30%. Toys, consumer electronics, and books and magazines were up 17% from last year, in line with the total online retail spending growth, comScore said.