I learned recently (after getting into day trading) that out of the 6k stocks traded, quite a lot of them are actually very thinly traded. That means it's prett

I learned recently (after getting into day trading) that out of the 6k stocks traded, quite a lot of them are actually very thinly traded. That means it's pretty hard to get into a trade with a reasonable price, because the spread is so big. I guess HFT helps with that.