A US official told Axios that the Trump administration had yet to receive any official messages from Iran rejecting the offer; It's not entirely clear to how much of the Iranian position is posturing vs. actually closing the door on negotiation

The comments from a US official suggest a continuing uncertainty around US-Iran negotiations, which may point to potential future volatility in markets tied to geopolitical events. The ambiguity regarding Iran's true stance can lead to fluctuations in oil prices and strengthen safe-haven currencies like the USD and JPY, while impacting equities negatively in the event of escalating tensions. Traders should monitor responses closely as they can signal shifts in market sentiment and risk appetite.