perhaps you mean execution quality? speed doesn't average out. if a broker takes 170 milliseconds to execute on average - that's an eternity. It's hard to kn

perhaps you mean execution quality? speed doesn't average out. if a broker takes 170 milliseconds to execute on average - that's an eternity. It's hard to know if execution quality averages out. it's hard to interpret execution statistics such as the ones published by Schwab.