Good idea wadi but if you really want (more) shares buy them at the ask in small 2~4k blocks. If the ask continues to show 5k without moving do it again. If it moves wait it more than likely will drop back. AON orders can sit there and get bypassed. Remember last week ubss had 20k on the ask at .21 and I put in an AON for them and it sat for several minutes. I didn't want a partial fill and then watch it bump up and pay the whole trade fee. It happened on another one of my lottery (penny) stocks. I did change to regular limit order and got them all but that was before the filing so not sure if it will react the same. Two months ago the ask was .15 looks pretty cheap now.