Value Mole (www.valuemole.com) provides free, up-to-date valuation multiples such as P/E, P/E/G, TEV/EBITDA for companies traded on the U.S stock exchanges. Valuation multiples, also known as comparables or "Comps", help individual investors determine whether a stock is undervalued or overvalued. A multiple is the most basic valuation metric to understanding the value of a stock. An investor absolutely has to check-the-box with looking at multiples before purchasing a stock. Without understanding the multiples, you are essentially gambling on the story of a stock and no longer investing.