I use both Stock Finder 4 and TC 2000.  I have a Force Index of 13 in both.  On closing day 12-31-15 in SF the force index closed at -307.86.  The same closing day in TC 2000 the closing is -48.5. 

I have SF set for it's smoothing to be exponential.  There is no setting in TC2000.  I do not usng any moving averages for the Force Index.  Why are the two programs showing two different numbers? 

The volume is different in TC2000 v12/16 vs StockFinder (TC2000 uses actual volume and SF reports in blocks of 100 shares) and TC2000 does not use the square root of the volume like StockFinder.

So TC2000 would be the 13 period exponential moving average of the following.

(C - C1) * V

While StockFinder is using the 13 period exponential moving average of the following.

(C - C1) * SQR(V) / 10

Could I make a SF version of the Force Index in TC 2000 using a formula?  It seems to be a bit more quicker on indentifying the turns.

Thank you Bruce for your help.

Use the second Indicator Formula given in my first reply as the Formula in a Custom PCF Indicator with the Period set to 13 and the Average Type set to Exponential.

As always Bruce you rock.  I am grateful to you.

Bruce, I have noticed that my phone app gives differnt redings than myPC in real tme. I have created the Force idicator above and gave it and orignal name. I choose the same idicator on my smart phone. The app readings can be showing (for example) an above zero reading while my PC shows a below zero reading.  The numbers can be substantially far apart.  Any advice on this?

Please contact technical support.

Please try the following RealCode Indicator.

'# Cumulative
'# Period = UserInput.Single = 13
Static ForceIndex As Single
Static termRatio As Single
Static sumWeight As Single
Static weight As Single
If isFirstBar Then
	termRatio = (Period - 1) / (Period + 1)
	weight = 0
	sumWeight = 0
	Plot = Single.NaN
Else
	Dim NetVolume As Single = Price.netChange * Volume.Value
	sumWeight = sumWeight * termRatio + 1
	weight = 1 / sumWeight
	ForceIndex = ForceIndex * (1 - weight) + weight * NetVolume
	Plot = ForceIndex
End If

Thank you Bruce

You're welcome.