800 will likely be the bottom (maybe a small dip below).
Why?
I only have NYSE LVL2 Market data. But we have ~75k shares buy-ordered at 800. ALL sell-orders i can see (at NYSE) in TOTAL up to 1000 (i left out those fantasy 8k+ orders ) are only 65k on the sell-side.
Nothing MM can't dip throuh - but will be expensive. So i guess we get further attempts at breaking 800 to then collect all shares from people having stop-losses at those big-round-numbers. We very often see this with MM in control. Naked short to create a dip that let the stop-losses fire, cover the shorts at 2-3$ difference within seconds/minutes. Transferring money from retail to MM
But now that i wrote it we will surely fall through 800 like butter & hit 720 or something crazy.. :/
Those buy orders can vanish quickly.