The story :
In that huge up wave there were sellers! Why? Speed Index is telling us why. That was a hard time to move up wave 18.2 SI at the top is Effort vs Result (Wyckoff ) . The average Speed Index is 10.5 therefore the 18.2 is an Abnormal SI. If we break the beginning of the 18.2 wave downwards 1.92627, we are going down.