Building products maker Vulcan Materials (VMC) and Watsco (WSO) both missed fourth-quarter views, though they pointed to some improvements in pricing or in construction demand. Vulcan, which sells asphalt, gravel and other building materials, posted an adjusted per-share loss of 32 cents vs. a loss of 19 cents a year ago. Analysts were expecting a 10-cent-per-share loss for the quarter. Revenue slipped 1% to $608.4 million, missing forecasts for