Glendale, California-based Public Storage (PSA) is a REIT that primarily acquires, develops, owns, and operates self-storage facilities. Valued at $47.6 billion by market cap, the company owned and/or operated 3,399 self-storage facilities located in 40 states with approximately 247 million net rentable square feet in the U.S. Shares of this self-storage giant have underperformed the broader market over the past year. PSA has declined 20.4$SPX) has  ...