Northwest Airlines (NYSE: NWA) opened at $9.19. So far today, the stock has hit a low of $8.89 and a high of $9.48. NWA is now trading at $9.45, down $0.39 (-3.96%). The stock hit its 52-Week high of $21.00 in November and set its 52-Week low of $4.68 in July. Shares of Northwest Airlines have been tumbling in morning trading on pressure from rising...(Click the story link or go to http://www.marketintelligencecenter.com for the full story)