Tuesday:

• 7:30 AM ET, the NFIB Small Business Optimism Index for September.

• DELAYED: At 8:30 AM, the Trade Balance report for August from the Census Bureau. The consensus is for the U.S. trade deficit to increase to $40.0 billion in August from $39.1 billion in July.

• DELAYED 10:00 AM, the Job Openings and Labor Turnover Survey for August from the BLS.