December was another solid month for Markit Economics' U.S. service sector sample where the headline index comes in at 53.9, only slightly lower than November's 54.6 and October's 54.8 which were 1-year highs. New orders, though slowing, also remained solid in December with hiring especially strong. The strength is reflected in prices with input costs on the rise and selling prices, which have been soft, posting their best month since June 2015. The report cites rising confidence in the business outlook as a central feature of the December sampling. Watch for the ISM non-manufacturing report coming up at 10:00 a.m. ET this morning.