Pre-market futures this morning are down again, although when we've woken up to red indexes ahead of the opening bell in past days this week, we've managed to finish in the green each time. The markets are currently riding a 5-day winning streak, as astutely pointed out by Zacks Exec VP Kevin Matras this morning. I say lack of economic data, but we do see one importan t report this morning: Consumer Price Index (CPI) for December.