If you go to the site I indicated, you can see that they are real time quotes and that the bid and ask are both there. I never noted such price disparities before, except for a few months ago.

It is not normal behaviour and makes me think that the four European trading platforms from London, Switzerland and Danmark are closely trading together, while AZML sets an independent price that is followed by the others.

I know little about how these trading platforms operate, but I am just telling what I am observing and it is different from normal.