> Also even if they aren't using real money that does not mean they are limited to historical data. You can run algos on live data even without actively trading

> Also even if they aren't using real money that does not mean they are limited to historical data. You can run algos on live data even without actively trading. What you don't get is how your actions affect the market itself. That equals to useless toy software in my book. But it's just my opinion. Edit: Look, I don't want to trash the devs for no reason, but the amount of "finance" academic stuff that claims to produce successful strategies is just ridiculous. At some point people just get tired.