FILE PHOTO: The logo of Dow Jones Industrial Average stock market index listed company American Express (AXP) is seen in Los Angeles, California, United States, April 25, 2016. REUTERS/Lucy Nicholson/File Photo
FILE PHOTO: The logo of Dow Jones Industrial Average stock market index listed company American Express (AXP) is seen in Los Angeles, California, United States, April 25, 2016. REUTERS/Lucy Nicholson/File Photo