Stock ownership refers to the possession of shares in a company, which represents a claim on part of the company's assets and earnings. When individuals buy stocks, they become shareholders and can benefit from the company's growth through price appreciation and dividends. Owning stocks also comes with risks, as the value of shares can fluctuate based on market conditions and company performance. Investors often buy stocks as a way to build wealth over time, and they may choose to invest in various sectors or companies to diversify their portfolios and manage risk.