Got Junk? Self-Storage Investors Hope So

Wall Street worries America’s for-rent storage space may be outpacing the volume of the country’s excess belongings

Storing people’s stuff may have become too profitable a business for its own good in recent years.

Analysts and investors are worried that the self-storage industry has attracted so much investment during a yearslong bull run that America’s for-rent storage space may be outpacing the volume of the country’s excess belongings.

Self-storage...