Indices closed in the red zone on Wednesday. Stocks such as Boeing and DowDuPont dipped on a variety of economic news. Producer prices ticked up in February. The Producer Price Index rose 0.2%, versus expectations of a 0.1% increase, and following a 0.4% gain in January. On another note, retail sales slipped in February. Sales fell 0.1% versus an expected 0.3% gain. Discounting gas and cars, sales stepped up 0.3%.