The Optimism-Pessimism Indicator

A divergence is when the Wyckoff Wave and the Optimism-Pessimism Index move in the same direction, but do not move at the same rate or speed.

Inharmonious action is when price/volume are moving together but not moving at the same speed

The Wyckoff Wave is for price, what the Optimism-Pessimism is for volume.

The intraday chart allows the student to drill down and study the very smallest waves that build into the large and major moves.

The principals of inharmonious action and divergence are a timing and a warning indication. Their appearance very often means a reversal of trend and when they occur, you should analyze the Wyckoff Wave very carefully.