Customers shop at Walmart's Black Friday event on Thursday, Nov. 26, 2015 in Rogers, Arkansas
Customers shop at Walmart's Black Friday event on Thursday, Nov. 26, 2015 in Rogers, Arkansas
  • US stocks were lower on Monday as investors focused on the ongoing holiday spending season.
  • Consumers spent a record $9.8 billion online during the Black Friday sales event, according to Adobe.
  • Cyber Monday sales are expected to be strong as consumers increasingly shift to online shopping.

US stocks edged lower on Monday, as investors parsed data on the holiday shopping habits of US consumers amid the start of the holiday shopping season.