The rules have a very strict and specific definition of 'unrestricted,' explicitly excluding vague statements about 'openness,' 'de-escalation,' or 'security.' Because diplomatic language is often ambiguous, an unclear statement or conditional pledge by Iran could easily trigger resolution disputes.

The Strait of Hormuz is the world's most critical oil transit chokepoint. An agreement by Iran to allow unrestricted shipping would deeply alleviate energy supply concerns since the conflict began, causing a sharp decline in crude oil's geopolitical risk premium (highly bearish for oil). Meanwhile, reduced risk aversion would pressure Gold, while lower energy costs and tangible de-escalation would act as a direct positive catalyst for broad equities like the S&P 500.