Following last week's results on the best research providers, we now look at trading and execution. Traders at asset management firms with investments in US equities were polled earlier this year. They were asked to rate their brokers in 7 categories across trading and execution. We received responses from 104 individuals at 94 firms. Voters also rated their brokers by attributes, with responses from 197 individuals at 182 firms. 

You can find the dataset here and a supporting article here, featuring commentary from Shaun Fallon, head of execution services (Americas) for Morgan Stanley and Luiz De Salvo, head of global cash equities trading at J.P. Morgan