Anyone know what the deal is with ANA's website pricing. As an example, I have looked at a multi city trip in business class, the trip cost was call it ~$3k/person. No matter what days I chose, over the span of a few months any combination of days resulted in the same price. Out of nowhere, that price updated to ~$4.5k/person, regardless of the combination of days.

I get they do dynamic pricing but is there any sense to this? I assume certain routes they maybe run cheaper pricing for certain periods to see what bites?

Specifically looking at routes from Singapore>Tokyo>New York