[boshalfoshal]

Not to mention more taxes if you are buying and selling a lot. As an individual, I would probably just do discretionary stock picks and buy & hold fundamental analysis. After working at an HFT firm, I've more or less realized that institutional level trading (or things that try to emulate it at the retail level) are pretty difficult for little return. It would be a fun side project, but as a way of getting money, not so sure...