Asset ClassesFund managers and investors often diversify their investments across asset classes and determine what percentages of the portfolio to allocate to each. Each asset class has a different, unique set of risks and opportunities. Classes can include:Stocks—shares or equity in a publicly traded companyBonds—government and corporate fixed-income debt instrumentsReal estate—land, buildings, natural resources, agriculture, livestock, and water and mineral depositsExchange-traded funds (ET...