yes, i have 3 broker accounts open now as we speak, 1 is my original broker account who does use penson, and yes i am keeping them because their fees are only $3 per every trade, thats the cheapest i could find, but ill only use them strictly for flipping and option trading, i also have etrade who is awesome, you can trade any stock with them!!! and i have TD who has their own clearing house just like etrade does, again, TD does not use PENSON!!! They still put restrictions on stocks butttttttttt thats only so you cant buy them, you are still aloud to sell them!! So you dont get caught in them! I also heard Scottrade and fidelity are the other 2 that are great