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Americans spent $10.8 billion on Cyber Monday this year, making it the largest online shopping day in U.S.

By the numbers: Total Cyber Monday spending this year was up 15.1% from the $9.39 billion that consumers spent last year, but fell short of the $12.7 billion in spending Adobe forecasted earlier in the year.

What to watch: Adobe is now forecasting consumers will spend $184 billion across the entire holiday season, a 30% increase from last year.

Why it matters: Consumers spent roughly $9 billion online on Black Friday, a 22% jump from last year's previously record high, according to Adobe Analytics.