I assume you mean what do you pay per share. Lightspeed as a broker has a .006 or thereabouts but they give a discouunt to OVC to about .004, I believe. Again, give them a call as I am not the best source of info. I will be soon as I am about setup with them.
The big drawback is them...
Another one to consider is OceanView Capital 858 699-1024. I'm in the process of signing up. They do keep 10% of profits when you take them out of your account. They use Lightspeed platform.