Schwab lets orders go from day to day on GTC orders untill filled...one comission ..includes all partials required to fill...Etrade on the other hand does not charge comissions on each partial during the same day...If it is carried over on a GTC order the comission is applied the next day and treated like a new order.......I have had very good luck with partials with Etrade....and I use only day orders../....AON probably prevented you from taking advantage of the low PPS.
I've never received a fill with AON on a penny stock. The GTC option is usually the best way to go for bottom picking.
I jumped back in MLXO today. I was in a long ago for the big revival spike, and I still like the solid fundamentals of this company. It's hard to find a penny stock that isn't diluting like crazy.
My broker, Optionsxpress, does not charge the commission until the order is filled even if it takes a week. I don't remember using an AON order and have not had problems getting filled both buying and selling. I guess I've just been lucky. hehehe