A report in The Financial Times said the holiday season was set to be the first in which more shopping will happen online than in stores.
Smartphones sales break all record this year.
Apparel retailer Gap, which has already been called out by multiple analysts over the weekend for the strength of its Old Navy and Banana Republic Black Friday deals, saw its stock climb almost 3 percent Monday morning.
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Demi competed outdid everyone in several categories, including swimsuit, evening gown and a question-and-answer round. HO/The Miss Universe Organization/Matt Petit Miss South Africa Demi-Leigh Nel-Peters sizzles in her yellow two-piece.
The credit card processing slowdown began hours after Macy's chief executive, Jeff Gennette, told CNBC that the retailer was better off this year than last, had robust online demand and was in a good place for holiday promotions.
Cyber Monday is now expected to mark the biggest online shopping day in USA history, according to Adobe Insights, which measures 80 percent of digital transactions from 100 major retailers. Amazon did not provide sales figures for the entire day.
Brick-and-mortar retail sales data were not immediately available, but industry analysts noted signs of a decline in physical store sales this year, Reuters reported. This made the long lines that normally accompany Black Friday even longer, but it couldn't dampen the spirits of the Southern California shoppers that had come out to stores across the area. Shoppers started lining up as early as 5:45 p.m. on Thanksgiving.
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According to Adobe Insights, 61.1 per cent of shoppers' visits to retailers' websites were for mobile devices, including smartphones and tablets.
ShopperTrak was optimistic for the holiday shopping season, since there are four Saturdays in December before Christmas.
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