Market capitalization represents the total value of a company's equity and is a key metric in financial markets. It is calculated using the formula: Market Cap = Share Price x Total Number of Outstanding Shares. For example, if a company has 1 million shares outstanding and the current share price is $50, the market cap would be $50 million.
This metric helps investors gauge the relative size of companies within an industry or the market as a whole. Companies are frequently classified based on their market cap: large-cap (over $10 billion), mid-cap ($2 billion to $10 billion), and small-cap (under $2 billion). It's important to note that market cap can fluctuate with changes in share price, reflecting investor sentiment and market conditions.