Realty Income Corporation (NYSE: O) is a prominent real estate investment trust (REIT) and a member of the S&P 500 Dividend Aristocrats index. The company operates a massive portfolio of over 15,500 commercial properties spanning all 50 U.S. states, the United Kingdom, and several other European countries. Its core business model revolves around acquiring freestanding, single-tenant properties and leasing them back to regional and national operators under long-term, triple-net (NNN) lease agreements. Under this structure, tenants are responsible for most operating expenses, including property taxes, insurance, and maintenance, which provides Realty Income with highly predictable and stable cash flows. While the vast majority of its portfolio is dedicated to retail tenants—such as convenience stores, dollar stores, grocery stores, and pharmacies—the company has strategically diversified its asset base to include industrial, agricultural, and large-scale gaming properties, such as its investments in the Bellagio and Encore Boston Harbor. Realty Income is widely recognized for its trademarked identity as "The Monthly Dividend Company," reflecting its commitment to providing shareholders with dependable, monthly dividend payments that have consistently increased since its public listing in 1994.