Resolves Yes once the Suez is inoperable or closed for seven consecutive days. Resolves No at market closure otherwise.

There have been multiple past closures of varying lengths: https://www.businessinsider.com/the-suez-canal-blocked-and-closed-several-times-since-opening-2021-3?amp

Currently, the Israel-Palestine conflict and its satellite conflicts threaten to cause another:

https://apnews.com/article/red-sea-yemen-houthis-attack-ships-f67d941c260528ac40315ecab4c34ca3