In India I meet so many Top broker HFT Desk their return in HFT is not so consistent. When they invested in High end technology & develop their own In house Low latency Order management Engine they get more than 50% return per annum. If they constantly not upgrading their technology then their return tempered& goes down with in range of 25 – 30%.
Do you know Bombay Stock Exchange India Is going to be world best trading venue for High frequency & market making traders. Their are various reason few of them I am going to mention below.