With a market cap of $51.9 billion, Public Storage (PSA) is the largest self-storage REIT in the U.S., operating over 3,300 facilities across 40 states and holding a stake in European operator Shurgard. Founded in 1972 and based in California, it earns revenue primarily from self-storage unit rentals, insurance products, and sales of packing/moving supplies.
Public Storage shares have underperformed the broader market over the past 52 weeks. PSA has risen 4.5% over this time frame, while the broader S&P 500 Index ($SPX) has rallied 10.1%. In 2025, shares of PSA are down 1.2%, compared to $SPX’s marginal drop.
