Thanks Grahal, much appreciated.
IG is closer to reality, both IG and PRT have the same price opening , even buy/sell/mid price would not explain such a difference. The spread on NAsdaq is 2 pts, so that would not explain such a difference like 50 pts in the last screenshot.
I will pot on the other 2 links you ahve sent. First on PRT as IG community might not be knowledgeable of PRT I guess.
Considering the difference, can PRT algo then make incorrect decision ?