While an individual investor may use many sites, some sites seem to be favored by many investors because of the cost of executing trades, cost of regular maintenance fees, ease of use of the interface, trading tools available, investment choices offered, ease to initially establish the account, low/no minimum investment requirements, speed of trade execution, availability of mobile applications, face-to-face support, and customer service. Some of the top sites include optionsXpress (Charles Schwab), OptionsHouse, TradeKing, Scottrade, Fidelity, E*trade, Charles Schwab, TD Ameritrade, ShareBuilder, and Firstrade.