Iran's National Security Council Secretary: The change in the Americans' tone that we sensed in Vance's letter is a good sign

Iran's National Security Council Secretary stated that a shift in the United States' tone, which Tehran perceived in a letter attributed to Vice President JD Vance, is viewed as a positive signal. The remark points to a possible easing of diplomatic friction between Washington and Tehran, a development that would typically be transmitted to markets through the geopolitical risk premium embedded in oil prices, regional sovereign spreads, and shipping and insurance costs in the Gulf. Iranian assets and Iran-exposed equities would be the most sensitive, as sanctions relief or reduced escalation risk affects capital access and trade flows, while crude benchmarks could see a modest reduction in risk-related premia. Traders should watch for any formal follow-up communication from either government, the status of the nuclear negotiation track, and movements in Brent crude relative to recent ranges as the first market-confirmation signal.

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