Trendline Failure

A trendline failure happens when an asset's price breaks through a line connecting its previous highs or lows, signaling that the current trend has weakened or ended. Trendlines are used to define the boundaries of a trend, and their breach is a classic technical signal.

A failure suggests that the supply or demand dynamic that was sustaining the trend has shifted, making a reversal or a period of sideways movement more likely. Traders monitor these failures closely to adjust their positions and manage risk in trending markets, as they provide an early warning of a change in market direction.