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Thanks for the response man. Not sure if you'll see this, but- is it actually proven that some % of traders are consistently, year over year profitable? Because

Thanks for the response man. Not sure if you'll see this, but- is it actually proven that some % of traders are consistently, year over year profitable? Because that would seem to be another blow to the strong form of EMH. I could see a more EMH-friendly world where some traders are profitable some of the time, but it's not consistent who's who year over year (which is what is supposedly said about active fund managers, one good year has little correlation to having another good year)

1e-9 8y ago
I am unaware of much publicly available proof, but in my experience, there is definitely a class of trader that is consistently profitable every year or even much better than that. These are the traders who are meticulous about their risk management and have found a way to improve a market. For a public glimpse, you could have a look at Virtu Financial's S-1 filing from 2014 (https://www.sec.gov/Archives/edgar/data/1592386/000104746914002070/a2218589zs-1.htm https://www.sec.gov/Archives/edgar/data/1592386/000104746914...). In it, they disclose that over the previous five year period, they were profitable on every day except one.