Candles and Volume Profile Different for same instrument, So where is Data Derived from and which is OTC / Exchange

[Guest Frustrated]

Trying to understand where each data set is derived from as candle open close positions and volume QTY patens are different for the same instrument and time scale  at  the same time stamp for each.

ig platform spread bet, ( OTC Contracts ?)

ig platform share dealing ( Exchange shares)

PRT thru IG Spread bet (?)

PRT thru IG share dealing (?)

 

As these differ one may show increasing volume and another showing decreasing volume for the same time stamp.   Candle opens can be different even different colour to  the other data source.  Obviously each difference would cause a different trading reaction / thought.

 

To test set up each version so you can see all live on the same  time scale and watch closely.