Like rival Hilton, Hyatt saw strength in its luxury and upper upscale brands but said geopolitical tensions in the Middle East shaved off about 110 basis points from second-quarter room revenue growth. 'Outsized Reaction'The Chicago-based hotel operator now expects full-year net growth in rooms of about 6%, compared with its previous forecast of 6% to 7%. The room growth metric was a more prominent driver of valuation for Wall Street than revPAR, and was likely to draw an "outsized reaction", Katz added. ADVERTISEMENTAnalysts at JP Morgan also attributed the share decline to Hyatt's reduced net rooms growth forecast, which the company said was revised to reflect the "weighting of expected openings" over the rest of the year. Hyatt shares have outpaced peers Hilton and Marriott over the past three months.