The overhead of running your own family office of day traders is pretty high. You are better off investing in a fund that does it for you unless you have hundreds of millions. Recruiting good traders is hard. Turnover at firms like Millenium and Citadel are crazy high (the lifespan of a trader at Millenium is < 2 years and some last only 2 days).
Very difficult to find them, required more research and look on long time , if there are might only ordinary trader which still often fail in their trades