MCAP. Market capitalization represents the aggregate value of a company or stock. It is obtained by multiplying the number of shares outstanding by their current price per share. For example, if XYZ company has 15,000,000 shares outstanding and a share price of $20 per share then the market capitalization is 15,000,000 x $20 = $300,000,000. Generally, the U.S. market recognizes three market cap divisions: large cap (usually $5 billion and above), mid cap (usually $1 billion to $5 billion), and small cap (usually less than $1 billion), although the cutoffs between the categories are not precise or fixed. In our example above, XYZ would be considered a small cap company. Also called market cap.