Early numbers indicate that online shopping is up by more than 20% Monday compared with the same time last year.
The figures by IBM Benchmark were released at noon, Eastern time.
They suggest that nearly a third of all online shopping traffic was done by way of mobile devices like smartphones and tablets.
Cyber Monday is supposed to be the busiest day of the year for online shopping. Online sales account for about 10% of total holiday spending.
Cheryl Bridges, the Director of Retailing Studies in the Mays Business School at Texas A&M was on First News at Four Monday.
She talked about the best times to buy and stretching your dollar this holiday shopping season.