A rapid price move on wide spreads down, on high volume (especially if closing low), is a sign of
weakness (i.e. Effort to go down). However, this type of action causes the market to become rapidly
oversold and vulnerable to up-moves. If the next day (or hour) is up, it must show that there was buying as
well as selling contained in the high volume down-move (no results from the effort). This shows that the
brakes are being applied to the falls at that moment.