Mega-cap

A mega-cap stock is a company with a market capitalization (total value of all its shares) of $200 billion or more. You'll hear this term when investors talk about the biggest, most established companies in the world—think household names that dominate their industries. Mega-caps matter because they're often considered safer, more stable investments, though they typically grow slower than smaller companies. They're also heavily weighted in major stock indexes, so their performance affects the overall market. For example, if a tech giant or global retailer reaches a $300 billion valuation, analysts would classify it as mega-cap. These companies usually have strong brand recognition and steady cash flow, making them popular with conservative investors.