Realty Income Corporation (NYSE:O) is included among the Best Retirement Stocks for a Dividend Stock Portfolio. Why Realty Income (O) Deserves a Spot in Your Dividend Stock Portfolio Image by Steve Buissinne from Pixabay Realty Income Corporation (NYSE:O) is an American real estate investment trust company. It is well-positioned to keep delivering a consistent and gradually increasing dividend. The company holds a broad mix of commercial properties— including retail, industrial, and gaming facilities— b ...