Source: BoxOfficeMojo.

• "Morbius" - $73,865,530

• "Joker: Folie à Deux" - ??

This market resolves YES if the cumulative domestic gross for "Joker: Folie à Deux" is larger than that listed for "Morbius" (i.e. $73,865,530), and NO otherwise.

So this doesn't drag out too long, this market will resolve NO if "Joker 2" is >$2 million lower than "Morbius" and either (a) it's playing in <100 theaters, or (b) it has a weekly gross <$50k (TL;DR: this would make it basically mathematically impossible to pass it within its initial theatrical run). Otherwise, it resolves when "Joker 2" passes "Morbius" or the first day a domestic gross isn't listed on BoxOfficeMojo.