 Shares of hotel real estate investment trust REIT DiamondRock Hospitality NYSE: DRH fell 8.9 Tuesday. DiamondRocks own first-quarter earnings, released after the close on Monday, were obviously more disappointing to investors than expected. DiamondRocks funds from operations -- which for a REIT is the rough equivalent to earnings -- came in at just 0.04 per share in Q1. 