TradersPro uses momentum to determine buy, hold and sell signals. A stock will enter the buy zone at +70 on the momentum scale.
A stock may still have a buy signal (uptrend) but it may be extreme in that uptrend. That ranges from a +140 to +250 (or higher) and creates short term reversal risk on a stock. Not that the stock will reverse, but that it may pull back into the buy zone to create a more ideal buy point.
Stocks that may be shifting to a downtrend move into the sell zone at -70 and move to extreme at -140 to -250. A stock that is in the bearish extreme zone has moved too far too fast and is due for a bounce.