Since trading nowaday is done by Algo and automation, any trader still trade discretionary and think they can beat the Algo in a longrun and trade big size? one mistake could wipe away all your profit in daytrade. How can you compete with emotionless machine, world one day will be dominated by machine, so does day trading.
first, let's get the definition correct. 1. market maker ? / heavy scalper / algo trader - they make hundreds or thousands of round turns every day. each trade they take a small profit (and small loss). 2. light scalper / day trader - they make tens of round turns every day. each trade they take medium profit ( and medium loss). 3. swing trader - he makes tens of round turns every week/month. each trade he takes big profit ( and big loss). category 2 and 3 are not really affected by category 1 people. market marker, heavy scalper, algo trader are competitors. they fight against each other.
how does algo trader not affect 2, algo trader can make program to daytrade, and computers have no emotion and not getting tire, unlike human they errors due to fatigue and other emotional aspects.
I day trade various futures. I don't bother about those machines / programmers. But I watch out for such a dangerous market ; when the market moves in chaotic messy untrendy choopy erratic manner, I'd avoid trading such a market. Because it would be very difficult to trade such a market.
Trade make communication among buyer and seller and they speed their visibility of product and service in market.
Did he do it manually? I thought he was using hft algo that he created in his parent's house bedroom... I would love to have a coffee with that man.
he will be sought after his high profile case. Consulting for hedge funds. I think you might have to wait.
Trying to play the algo game with "retail" imitations of their tools is doomed. Everything else is possible.