Three inside up / three inside down

A harami plus confirmation. Three inside up: a long down candle, a small up candle inside its body, then a third candle closing above the first candle's body. Three inside down is the mirror.

How traders use it: Built-in confirmation makes it more specific than a harami alone, at the cost of a later entry.

Common mistake: Ignoring where it formed; a confirmed pattern in a poor location is still a poor location.