I use an autotrade program on one of my Tradeking accounts, and the last two trades have been very weak in comparison to the other brokers. For instance, + 0.47% for Tradeking vs. 1.70% to 2.27% for the other brokers. Has anyone else used Tradeking, what is your experience? I am unfamiliar with how market orders get filled. Is it faster with other brokers because they have better software or hardware? Any recommendations. I am using retirement funds, so I gotta stick with basic longs, ETFs and options. What is a good broker for this type of trading?