The is designed to spot a decrease in downside momentum and alert technicians to a potential trend reversal.
Upper Resistance Line: The upper resistance line formed with four successively lower peaks.
Lower Support Line: The lower support line formed with four successive lower lows.
Contraction: The upper resistance line and lower support line converged as the pattern matured. Even though each low is lower than the previous low, these lows are only slightly lower. The shallowness of the new lows indicates that demand is stepping almost immediately after a new low is recorded. The supply overhang remains, but slope of the upper resistance line is more negative than the lower support line.