 DuPont de Nemours Inc. shares DD, -0.05 slid 4.5 in premarket trade Tuesday, after the company beat earnings estimates for the first quarter but offered second-quarter guidance that lagged consensus. The specialty materials company posted net income of 488 million, or 42 cents a share, for the quarter, down from 5.394 billion, or 64 cents a share, in the year-earlier period. 