I have three ETFs on the same index: MSCI World Ex USA
As you can see from the pictures, the spreads are very different. Amundi is the most favorable. Why is that? Is it this issue discount? And is this not taken into account in the extraETF ETF comparison? Because I had previously made a comparison there and decided in favor of the X Tracker, but now I think that the Amundi would have been better. I know that the European stock exchanges are currently closed but I am comparing the ETFs under the same conditions. What is the solution to the puzzle?