FILE PHOTO: The Dow Chemical logo is displayed on a board above the floor of the New York Stock Exchange shortly after the opening bell in New York, U.S. on December 22, 2015. REUTERS/Lucas Jackson
FILE PHOTO: The Dow Chemical logo is displayed on a board above the floor of the New York Stock Exchange shortly after the opening bell in New York, U.S. on December 22, 2015. REUTERS/Lucas Jackson