Stocks moved lower as nerves over geopolitical uncertainty continued on Tuesday with investors assessing the U.S.'s increasing involvement in Syria and North Korea. The financial and technology sectors lead the decline.
Shares of United Airlines (UAL - Get Report) continued to decline following an incident over the weekend in which a passenger was violently dragged from the aircraft for not voluntarily giving up his seat. RetailMeNot (SALE) rocketed close to 49% higher after agreeing to be acquired by privately owned Harland Clarke Holdings for $11.60 a share. And Supervalu (SVU) climbed after the wholesale distributor said that it will be acquiring Unified Grocers in a $375 million deal.