Or (TDO) is an index that measure price rate of change using the principle of " Pure Momentum".

When a security price advance from 10 to 15 then price rate of change is 150% but when it declines back from 15 to 10 then price rate of change is 33.3% only. That is why technical analysis indicators like "Price Rate of Change" (ROC) or "Momentum" gives higher readings for ascending price movements than that given to descending ones. TDO fixes this problem to help traders at reading momentum correctly depending on a simple calculation method that explained in the next two steps:

1. Center = (A + B) / 2
2. TDO = 100 x (A – B) / Center

important Information

• TDO Demo:  https://www.mql5.com/en/market/product/43081
  

• TDO User's Manual:  https://www.mql5.com/en/blogs/post/717970
  

• TDO F.A.Q :  https://www.mql5.com/en/blogs/post/722015
  

• TDO video library:  https://www.mql5.com/en/blogs/post/722018

• TDO Expert Advisor Example: https://www.mql5.com/en/blogs/post/731141
  

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