DiamondRock Hospitality must be an investor's best friend. Operating as an umbrella partnership real estate investment trust (UPREIT), DiamondRock primarily functions through its taxable REIT subsidiary Bloodstone TRS. It owns (but does not operate) about 20 upper upscale full-service hotels with more than 9,500 rooms in North America, with an emphasis on such markets as New York, Los Angeles, Chicago, Boston, and Atlanta. Its hotels are all operated under brands owned by Marriott International, Starwood Hotels & Resorts Worldwide, and Hilton Worldwide.