Residential REITs own apartment buildings, single-family rental homes or manufactured housing communities, collecting rent from tenants whose alternative is home ownership. When home ownership becomes less affordable — rising prices, higher mortgage rates — residential REIT demand improves as more households choose or are forced to rent. This creates a useful countercyclical dynamic: rising interest rates hurt REIT valuations through higher discount rates but simultaneously improve the relative affordability of renting versus buying, supporting occupancy and rent growth. Rent growth is the key driver of income growth, and markets with supply constraints — limited new apartment construction relative to household formation — sustain stronger rent increases over time. Sun Belt markets with strong population inflows have been the highest-performing geographies for residential REITs over the past decade. Expense management — utilities, maintenance, property management labor — determines how much rent growth flows through to net income. For investors, residential REITs offer a combination of demographic tailwinds, inflation protection through annual rent resets and bond-alternative income characteristics, particularly attractive in markets with structural housing undersupply.