Hi Alan

Here are a couple of indicator options for an MACD of OBV. The DLL-based option makes it possible to use precise “new data” ratios for each EMA but the conventional ratios generated by Period parameters of 12 and 26 are probably quite adequate for most purposes.

Roy

{OBV MACD 1}

FastMA:=Mov(OBV(C),12,E);

SlowMA:=Mov(OBV(C),26,E);

M:=FastMA-SlowMA;

M; {MACD}

Mov(M,9,E); {Signal}

{OBV MACD 2}

FastMA:=ExtFml("MSTT.EMA",OBV(C),12.3333);

SlowMA:=ExtFml("MSTT.EMA",OBV(C),25.6667);

M:=FastMA-SlowMA;

M; {MACD}

Mov(M,9,E); {Signal}

Hi Alan

You won’t have the MSTT DLL as it was created by Wabbit especially for MetaStock Tips & Tools. However, the standard MetaStock Mov() function should provide all the flexibility you’re likely to need for an MACD of On Balance Volume.

Roy

Hi Alan

The only thing I can think of is that the scaling of various plots is distorting the appearance of other plots. A test for this would be to check all values by referring to each plot value as reported in the Data Window (click the crosshairs icon on the toolbar). Regardless of what two plots look like when displayed in the same window, if the data window says they have the same value then they do have the same value. Mixing scaled with unscaled or scaled-left with scaled-right plots is the most common reason for identical value plots appearing to be different.

Roy