International court's Myanmar decision will reveal whether OIC follows through on commitments

A decisive ICJ ruling paired with coordinated OIC follow-through (sanctions, enforcement mechanisms, or diplomatic isolation of Myanmar) would likely strengthen perceptions of multilateral institution credibility and rule-of-law enforcement, potentially supporting confidence in emerging-market governance frameworks and regional stability premiums.

If the ICJ ruling produces limited OIC mobilization or enforcement—statements without material consequences—markets would plausibly interpret this as further evidence of institutional weakness in addressing humanitarian crises, reinforcing skepticism about multilateral mechanisms without shifting near-term risk appetite materially.

Should the ruling trigger sharp OIC divisions, Myanmar's defiance, or renewed regional tensions (military escalation, refugee flows, or sectarian backlash), this would put downward pressure on stability premiums in Southeast Asia and Muslim-majority economies, particularly those with exposure to Myanmar or regional supply chains.