With the large amount of sells yesterday, and the slowing down of them towards the end of the day, having 8 market makers makes sense. They can walk up and amount of buys before the actual news release as they did before. Large amount of buys would have to come through at .0005 to break it, by that time, the MM's can get out and restack on the 6 or 7 and continue to make money. They don't see it flying right now seeing how the recent PR's haven't brought enough volume to make it so, so they will stick around and play every up tick.