By using the ModernGraham Valuation Model, I’ve selected the ten most undervalued companies of the S&P 500.  All of these companies are suitable for the Defensive Investor and/or the Enterprising Investor. Defensive Investors are defined as investors who are not able or willing to do substantial research into individual investments, and therefore need to select only the companies that present the least amount of risk. Enterprising Investors, on the other hand, are able to do substantial research and can select companies that present a moderate (though still low) amount of risk. Each company suitable for the Defensive Investor is also suitable for Enterprising Investors.