Maryland-based Extra Space Storage Inc. (EXR) is a real estate investment trust (REIT) that offers a vast array of well-located storage systems, which comprise many units and many million square feet of rentable storage space. The company has a market cap of $31.1 billion and owns and/or operates 4,410 self-storage stores in 42 states and Washington, D.C.
EXR stock lagged behind the broader market over the past year, growing 5.9% compared to the S&P 500 Index’s ($SPX) 19.5% surge. However, in 2026, the stock has fallen nearly 13.1%, outperforming the SPX’s 11.6% rise.