Stocks set for a lower open following some disappointing results

U.S. stocks were poised for a higher open Monday morning, set to extend the past two week's performance as earnings season enters its third week with over 140 companies of the S&P 500 due to report this week. Already this morning, several heavyweights are scheduled to post results. Meanwhile, investors will digest some of Bernanke's comments as they await more housing data.

[Update 9:00 a.m.: Futures turned direction following several disappointing earnings reports this morning.]

More here: Before the bell: Futures higher as earnings season conitnues