 Shares of US Foods Holding Corp. USFD, 1.00 dropped 4.3 in premarket trading Thursday, after the foodservice distribution company reported a fourth-quarter profit that missed expectations as cost of sales growth outpaced the rise in sales, and provided downbeat full-year outlook. The company swung to net income of 59 million, or 26 cents a share, from a loss of 23 million, or 11 cents a share, in the year-ago period. 