Quote from shortie:
how many round trips per day are doable with Q using 1000 shares/trade
when scalping worked, probably 40 rt's if you are very focused all day long, placing orders on every level, reposting on every fill. look at the 1 day chart of qwest between 12-2 and see how mostly every order takes place mid-penny on low volume, those hours are impossible to make money.
qwest is a bad example, citi is the all time favorite of any scalper. for over a year citi has been in a tight daily range with huge volume. people would be doing 100 000 shares at a time, making the same penny all day long. now citi is dead. either it's just a summer slowdown and mega volume will come back or it's just one more trading strategy which has stopped working because of the mass amounts of people/businesses that have gotten into it.