Robinhood - Free stock trading service.
TradeStation - Whether you trade stocks, ETFs, options or futures, TradeStation’s award-winning tools and...
Freetrade - Invest in stocks & ETFs for free, get started in seconds.
OptionsHouse - OptionsHouse is an online stock trading platform with an easy-to-use interface.
eToro - The social investment network that connects traders from around the globe and enables them to share...
Questrade - Questrade IQ Mobile is everything you need to trade stocks - right in the palm of your hand.