Quote from H2O:
Rebates ....
When entering and closing a trade and getting the rebates, you have a statistical edge.
Example :
1000 shares
Entry / Exit through INET ($2,- for adding liquidity)
If I make $0.05 with 1000 shares, I make $50,- + $4,- = $54.-
If I lose $0.05 with 1000 shares, I lose $50,- - $4,- = $46,-
Ok, I know what you are going to say, you will most likely not close a losing trade while adding liquidity. So then it will look like this :
If I lose $0.05 with 1000 shares, I lose %50,- + $1,- = $51,-
This is calculated using INET fees ($2 for adding, $3 for taking) So I enter a trade getting the rebates and I exit a trade paying the fees.
This still gives me an edge of at least $3,- (max $8,-) per 1000 shares traded. Of course you will have to deal with commissions and SEC fees as well....
SEC just lowered their fees again, and if you are trading for small gains (losses) you should be trading lower priced stocks. A few cents can be made just as easy on a $10,- stock as a $ 50,- stock.
Commission rates can be very low .... (You need to have a per trade fee, not per share)
Hope this helps