Most important charts is the 5Min chart sand the 30Min charts ...
To dissect what happened on the 30Min charts :
Check the action on the first 15Min ( un sure momentum ) ...ppl waitting to sell or buy (un sure they r waiutting on the PPS direction) 2nd 15min more panic/sale and then the 3rd the 15Min buying the panic shares 4th steady buys not much on ask.