"Calculating Market Cap
Market capitalization is just a fancy name for a straightforward concept: it is the market value of a company's outstanding shares. This figure is found by taking the stock price and multiplying it by the total number of shares outstanding. For example, if Cory's Tequila Corporation (CTC) was trading at $20 per share and had a million shares outstanding, then the market capitalization would be $20 million ($20 x 1 million shares). It's that simple."
Of course it gets complicated if you try to get a straight answer out of a "perinneal pumper" (PP).