...Fitch has an above-average outlook for U.S. office REIT sector fundamentals in 2015. Vacancy and rent growth were strong during the first half, which suggests the industry is well positioned to meet or exceed expectations held at the beginning of the year. Tech employment-oriented markets should continue to outperform due to strong employment growth. There is also some anecdotal evidence that demand from large financial tenants in Manhattan is improving. Weak demand and increased supply (including shadow space) will pressure oil-centric Houston....