AllianceBernstein Holding L.P. is a publicly owned investment manager. The firm provides its services to investment companies, pension and profit-sharing plans, banks and thrift institutions, trusts, estates, government agencies, charitable organizations, individuals, corporations and other business entities. The firm manages separate client focused portfolios for its clients. The firm primarily invests in common and preferred stocks, warrants and convertible securities, government and corporate fixed-income securities, commodities, currencies, real estate-related assets and inflation-protected securities. The firm employs quantitative analysis along with long-term purchases, short-term purchases, trading, short sales, margin transactions, option strategies including writing covered options, uncovered options and spread strategies to make its investments. The firm obtains external research to complement its in-house research. The firm was formerly known as Alliance Capital Management Holding LP. AllianceBernstein Holding L.P. was founded in 1967 and is based in Nashville,Tennessee with additional offices in New York.