On the positive side of the MLK Day calendar shift, the U.S. hotel industry reported positive year-over-year comparisons, according to CoStar’s latest data through 18 January. CoStar is a leading provider of online real estate marketplaces, information and analytics in the property markets.On the positive side of the MLK Day calendar shift, the U.S. hotel industry reported positive year-over-year comparisons, according to CoStar’s latest data through 18 January. CoStar is a leading provider of online real estate marketplaces, information and analytics in the property markets.