Nippon Building Fund Inc. (8951.T) : juste valeur

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Nippon Building Fund owns and manages a portfolio of Grade A office towers in central Tokyo, with the bulk of its assets in the Marunouchi, Nihonbashi and Shinjuku submarkets, and it is one of Japan's largest listed office REITs at a market capitalisation of 1.06 trillion yen. Its moat is the location and quality of the buildings: prime Tokyo office space is scarce, tenant demand concentrates in such buildings during flight-to-quality cycles, and the company's 49.6% operating margin reflects how much of the rent roll drops to the bottom line. Revenue growth of 5.2% is the current signal to watch, since it points to rent resets and occupancy gains that the market has not yet priced at a premium, with the forward multiple of 25.3x against a trailing 24.1x implying earnings are expected to be broadly flat to slightly lower near term. The stock is worth a deeper look for anyone weighing Japanese real estate exposure through a single high-quality operator, but the 5.9% ROE is modest for the sector and leverage, interest rate sensitivity and the pace of Tokyo office supply will decide whether the rent growth persists.