Dojis occur on three consecutive trading days with the second gapping down
and the third gapping back up.
In a downtrend or during a pullback within an uptrend, a battle begins.
The bears start to back off while the bulls step up. Dojis indicate an
even battle between the bulls and bears. The formation of three Dojis
within a downtrend hints that the bulls may be starting to reassert themselves.
A white day with volume is needed to confirm the reversal.