That's pretty steep earnings. but doable. What's his academic and work background? You'd need a superior programmer type with superior analytical skills. Kind of like a Engineering/maths/Physics whiz working at Army Signals as a elite code breaker.
does he trade for himself or work for a firm? If he's trading for a large ibank or hedgefund then it's definitly possible, of course it's not "him" making 100k/day then. But if you are telling me it's just some guy trading by himself, then 100k/day is crazy. What does he trade?
I suspect anyone making $100k/day automated wouldn't tell a soul. Someone making $1mil/yr with $100k swing would probably tell anyone who would listen.
Here is the mother question that needs to be asked to anyone making or losing 100k per anytime frame: What is your RFT's number and its attributes? Attributes are not easy to cover here, but let look at RFT's number. RFT's number is equal to: (X*Y/Z)*P, where X: proportion of winning to losing trade Y: reward (expressed in same units as Z) Z: risk (expressed in same units as Y) P: pace (inverse of holding time) expressed in (day)^(-1). For instance for holding of one year, P=1/360. If one day P=1, if half a day P=2. The higher RFT's number, the better. Upper bound is infinity (obtained with Z=0, RFT's favorite trading method).
but if his account is $25 million than it's only $25 million per year whic his only 100% annual return. If he can get 1000% annual return consisttently than he can be top 100 traders on trader's monthly.
ie. if you account was $50,000 making $50,000/year or 100% is easily possible. making 1000% or $500,000 on a $50,000 account is possible too.
Listen everyone. Everyone makes $$$ on Elitetrader. There are billionaire fund managers on this board. Dont doubt it, they are here everyday making $$$. Only the best traders come to this board. Why isnt that believable? The best advice I can give you is to worry about your own situation and not someone else's. Focus on improving what you drive and dont look at someone else's ride...