Force Index is an oscillator. It combines volume with prices to discover the force of bulls or bears behind every rally or decline. It brings together three essential pieces of information the direction of price change, its extent, and the volume during that change. It provides a practical way of using volume for making trading decisions. Force Index can be used in its raw form, but its signals stand out much more clearly if we smooth it with a moving average. Using a short EMA of Force Index helps pinpoint entry and exit points.Using a longer EMA helps confirm trends. Efi long > 0 (bullish trend) and efi short < 0 = buy signal (green bar) Efi long < 0 (bear trend) and efi short>0 = sell signal (red bar)