AllianceBernstein (AB) is a leading global investment management firm that provides in-depth research and diversified investment services to a wide range of clients, including institutional investors, high-net-worth individuals, and retail investors. The firm was formed in October 2000 through the acquisition of Sanford C. Bernstein & Co., an investment research and management company, by Alliance Capital Management. AB is known for its research-driven approach, offering a comprehensive suite of active and passive investment strategies across various asset classes, including equities, fixed income, and alternatives, with a mission to help clients navigate the market and achieve their financial objectives.