U.S. markets ended Thursday's session mixed as retailers delivered two very different pictures of holiday spending. On Friday, all eyes will be on the December jobs report which will be released at 8:30am ET. The jobs report will likely dictate the pace of further monetary easing after December's decision by the Federal Reserve to start curbing its' bond buying program last month. Markets have had a shaky start to the year after the S&P 500 rallied 26% last year. TheStreet's Jane Searle reports from Wall Street.