Among sophisticated investors, there are several portfolio strategies that require the ballast and stability of U.S. large-cap stocks – or the securities for U.S. based corporations that have a market capitalization of at least $10 billion. Relative to other categories of securities, the stocks of America’s massive, publicly-traded companies – and its largest public mid-cap corporations with market capitalizations generally over $5 billion – can provide an increased stability to a portfolio that’s often desired by investors.