By TheStreet Staff What Is a Small-Cap Stock? How Do I Know If a Stock Is Small-Cap?One of the most important metrics financial analysts use to categorize stocks ismarket capitalization. More than just a measurement of a company’s size, market capitalization, or market cap for short, is also an estimate of a company’s worth. Market cap takes into account the current price of one share of stock multiplied by the total number of shares outstanding. This gives investors a snapshot of the company’s current market value. Stocks are categorized from small to large: Big, multi-national corporations a…