Possible Double Tops   

Two well-defined peaks, separated in time but at nearly the same price level, leading to the formation. Prices trend upward over the short to intermediate term and usually do not rise above the left top. There should be at least 1%-2% decline between two tops, measured from high to low. Two distinct tops with a price variation between peaks of .3% or less. Tops should be a few intervals apart. The confirmation point is the lowest low between two tops.

Trading tactics
Compute the formation height by subtracting the confirmation point low from the highest high in the formation. Subtract the difference from the lowest low between the two tops. The minimum price move is the result. When compared to confirmed Double Tops the probability of price declining is less, but the possible gain can be greater.