Quote from Surfeur:
hft,
You have a example how you capture the spread on FX ? plz

Quote from hft:
About backtesting, there are a small minority of people in HFT that lean on backtesting results in market-making, but I am not one of them.
Quote from vinny2009:
Where can I find more information about hardwares, technologies, OS, etc. that are used by HFT firm?
Do you use customized linux? I completely have no idea how to lower latency to sub millis, since it takes about 0.5ms for my computer just to ping to itself (ping 127.0.0.1).
Thank you!
Quote from BlackMage:
So why not provide liquidity on both A and B?