3 ms·My friend at a different hit firm says they tend to make MORE profit in high volatility regimesby mathperson 9y agoMy friend at a different hit firm says they tend to make MORE profit in high volatility regimesconsz 9y agoThat's exactly what SEJeff is saying (profit is positively correlated with both trading volume and price volatility).SEJeff 9y agoCorrect sir! And I've spent the past 9 years of my career as a Linux monkey in electronic trading / HFT / whatever the hip term for it is today.