Members Exchange's (MEMX) mission is to increase competition, improve operational transparency, reduce fixed costs, and simplify the execution of equity trading in the U.S. The founding members of MEMX are many of the largest U.S. retail broker-dealers, global banks, financial services firms and global market makers: Bank of America Merrill Lynch, Charles Schwab, Citadel Securities, E*TRADE, Fidelity Investments, Morgan Stanley, TD Ameritrade, UBS, and Virtu Financial.