Stock futures are slightly higher Monday night after the previous session's broad rally. Investors await a busy earnings week that could inform the trajectory of a market that keeps on roaring. Futures tied to the Dow Jones Industrial Average added 33 points, or less than 0.1%. S&P futures and Nasdaq 100 futures each hovered above the flatline. In after-hours trading, Zions Bancorp shares were 2% higher after the regional bank reported third-quarter profits that rose from a year ago, despite