Wouldn't you need a broker account with minimal spread and very low broker fees for this to work? The banks who are already doing high frequency trading don't

Wouldn't you need a broker account with minimal spread and very low broker fees for this to work? The banks who are already doing high frequency trading don't have to worry about this, they can profit off a trade after its gone up a fraction of a point or so and close the trade, your average trader has to make up for the transaction fees or spread which are sometimes 10 to 100 times what a bigger firm has to cover.