Stock Market Today: Dow Falls Ahead of 'Economic D-Day'; Alibaba Slides On Offering (Live Coverage)

Futures for the Dow Jones Industrial Average and the other major stock indexes traded lower Monday as Wall Street braced for "the single greatest financial offensive ever" against Iran. Meanwhile, Alibaba (BABA) was an early loser on the stock market today. Ahead of Monday's open, Dow futures dropped 0.1%, as S&P 500 futures lost 0.2%. Nasdaq-100 futures declined 0.5% in…