These markets will resolve based on the (cumulative) "DOMESTIC" gross for "Deadpool & Wolverine" (2024) listed by BoxOfficeMojo three months after release (i.e. October 26th): https://www.boxofficemojo.com/title/tt6263850/

Details

• I will use the number displayed on BoxOfficeMojo, however it is defined.

• For simplicity, I rounded down the gross of previous MCU films to the nearest million. These numbers (displayed in the current market options [1]) are what I will compare to the "Deadpool & Wolverine" gross (not the full precision available elsewhere).
  

Example

• The "DOMESTIC" gross for "Deadpool 2" (2018) was $324,591,735.

• With this gross:

  • The [>$318 million - Iron Man] option would resolve YES.

  • The [>$358 million - Guardians of the Galaxy Vol. 3] option would resolve NO.

"Deadpool & Wolverine" releases on July 26th. Its trailer (supposedly) set the record for the most viewed trailer within 24 hours.

[1]. Unless I made an obvious mistake in copying these down, in which let me know and I will try to correct it.