Exact formation
Opening and closing almost the same next to the minimum, with a long upper shadow and practically no lower shadow.
What is happening in the market
Demand drove up the price, but supply rejected all advance before the close.
Where it matters
Potential bearish reading after a rise and in resistance; isolated is superior rejection.
How to confirm it
Subsequent close below the minimum.
When it is invalidated
Breakout and acceptance on the shadow maximum.
Common mistake
Mistake it for a dragonfly: the tombstone has the long shadow above.