Traders are back from the Thanksgiving holiday and in a selling mood at the opening bell on this Monday. Stock were lower after being hit with a slew of negative data including slowing factory activity in China. More bad news came from Asia when Moody's cut Japan's credit rating. The agency says it doubts if Japan will be able to meet its economic goals. This cyber Monday is expected to have fewer online shoppers. Storefront retailers had a lackluster Thanksgiving shopping weekend. The National Retail Federation says retail spending fell 11% for the second straight year. Stocks are also sliding on dropping oil prices. OPEC's decision to keep production levels is weighing on the already pressured commodity.