yes but not in the subpenny moron pink market they always get filled. sorry about this but look around and get some more experience. 1 am clay comes out with his chart 5 negative market makers show up then a very very fluff p r. vndm,bmic,vert,ascm,arca!!!they are buying in these gaps to cover their shorts. they were caught short thus the gaps. learn gap trading. learn why gaps form.