Energy builds up in a ‘Wyckoff Cause’, like a weight building up on one end of the seesaw, then the balance moves and we have the resulting swing and effect.
 

Wyckoff: The Law of Cause and Effect

In order for there to be an effect (change in price), there needs to be a cause. The effect will be in direct proportion to that cause. Best price moves occur when there has been enough time to allow for a period of accumulation or distribution (or in other words a cause).

If the trend does break down a 30% plus move down is very likely. The NYSE is very Wyckoff friendly with the law of cause and effect.
 

 

NYSE PnF

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