Economic data for Tuesday: NFIB Small Business Optimism Index 7:30 AM ET ICSC-Goldman Store Sales 7:45 AM ET Retail Sales 8:30 AM ET Import and Export Prices 8:30 AM ET Redbook 8:55 AM ET Business Inventories 10:00 AM ET Jeffrey Lacker Speaks 10:30 AM ET 4-Week Bill Auction 11:30 AM ET