I'm doing research for the best broker for HFT trading, it has to allow scalping, closing orders withing same second (normally within 2 minutes) and ECN basis account (raw disperse very low commission)
I've a shortlist of Yadix and JFD so much but JFD commissions are a bit too high, both offering top quality execution for your machine, but I want more input from other traders using such systems please.