DuPont ( DD - Get Report)  reported second-quarter earnings of $1.38 a share, ahead of analysts' estimates of $1.29. Eli Lilly & CO. ( LLY - Get Report)  posted adjusted earnings in the second quarter of $1.11 a share, compared with analysts' expectations of $1.05. The stock fell slightly.
 
Earnings reports are also expected Tuesday from General Motors Co. ( GM - Get Report) , McDonald's Corp. ( MCD - Get Report) , Advanced Micro Devices Inc. ( AMD - Get Report) , Kimberly-Clark Corp. ( KMB - Get Report) , Chipotle Mexican Grill Inc. ( CMG - Get Report) , JetBlue Airways Corp. ( JBLU - Get Report) , AT&T Inc. ( T - Get Report) , 3M Co. ( MMM - Get Report) , Caterpillar Inc. ( CAT - Get Report) , United States Steel Corp. ( X - Get Report) , Amgen Inc. ( AMGN - Get Report) , Biogen Inc. ( BIIB - Get Report)  and Express Scripts Holding Co. ( ESRX)