The Double Top is a bearish reversal chart pattern where price tests the same resistance level twice and fails to break through on both attempts. The two peaks form at approximately equal price levels, separated by a moderate pullback. The support level connecting the trough between the peaks is called the neckline. A confirmed close below the neckline triggers the bearish signal.
At the first peak, sellers win the battle at resistance. Buyers regroup and drive price back up — but on the second attempt, buying volume is weaker. The resistance level now has a second layer of supply from traders who bought the first peak and are relieved to sell at break-even.
When the neckline support breaks, long positions with stop-losses below that level are automatically triggered. The resulting cascade of sell orders can accelerate the decline well below the initial target.
After neckline breakdown, expect a decline equal to the height from the peaks to the neckline. Reliability improves significantly when the second peak forms on lower volume and the neckline break occurs on expanding volume.
Example Chart
Two equal resistance tests followed by neckline breakdown