Some tips to get the most out of Computer-assisted trading
CAT works best for savings around 2%. If small smavings and an excellent probability of execution are your goals, don't go for more than 2% savings.
Evem if you go after 4% savings you still have approx. 80% of chances of having your order executed
CAT monitors orders from the moment they are entered. Requested savings of identical orders entered at different times will neither be reached at the same time nor at the same prices because conditions at order entry were different.