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Big Gap Down,  should be looked as a big [[BRBCL]], i.e. a strong bear BO. 80% chance of at least one reversal in the first hour. The bears want a double top or wedge top on a pullback to near the EMA. The bulls want a double bottom or wedge bottom for an early low of the day. 

When there is BGD, odds favor bears:
* 80%: 85% chance of PB in '''first 2 hours'''. 80% chance of at least one reversal attempt in the '''first hour'''. (i.e. some kind of TR on the open).
* 70%: 75% chance '''trending TR day'''. 70% chance swing down '''after 1pm ET'''.
* 60%: 65% chance the gap will not close today. 60% chance of swing down in 1st hour.
* if instead it is going up, often pulls back 50% in wedge bull channel.
''Worth to mention,'' '''if the gap down is overly big''', i.e. a [[HGD]], it increases chance of [[TRO]] that lasts a couple hours <s>since it might take that long to get near EMA</s><ref>[[20220913|''20220913'']]</ref>. ''Generally, a big gap is a gap that is around the half of the daily range, a huge gap is a gap that is bigger than the daily range.''

== 4 common outcomes ==
[[File:BGD 4 Common Patterns.png|thumb|749x749px|alt=|居中]]
[[Category:Trends]]
[[Category:Work In Progress]]
<references />
[[Category:BG]]
[[Category:GD]]