It's been a while since I was working in HFT, but the HFT firms making the most money were all using Java predominantly. Yeah a lot of firms use C++ but I think

It's been a while since I was working in HFT, but the HFT firms making the most money were all using Java predominantly. Yeah a lot of firms use C++ but I think that's more because of myth than actual benefits. Pure simple arbitrage is a race to the bottom very quickly, and it's very difficult to remain profitable with those sort of simple strategies regardless of what language you use. Maybe FPGAs and radio networks could let you make money off of simple arbitrage (someone must be making money from it). C++ isn't going to give much advantage over Java with GC disabled.