Wall St. little changed; Fed in focus

Investors have been cautious about taking large positions due to uncertainty surrounding the U.S. presidential election and with the Federal Reserve poised to raise interest rates before the end of the year. While traders doubt the Fed will raise interest rates this week, they will be looking for signs to firm up their expectations for a hike at the central bank's meeting next month. Wall Street ended barely changed on Monday as investors digested the latest large-scale corporate mergers as well