Global equity markets are facing a potential reversal of their recent gains as the initial euphoria surrounding the preliminary nuclear deal between the United States and Iran begins to fade.

While the announcement of a tentative agreement sparked a broad-based rally across major indices, including the CAC 40, Dow Jones, and Nasdaq, market participants are now scrutinizing the durability of the diplomatic breakthrough.

The initial price action reflected a significant de-risking sentiment, with investors pricing in the prospect of reduced geopolitical friction and the potential reopening of the Strait of Hormuz.

However, the market's reaction is increasingly cautious, driven by concerns that the provisional nature of the accord may not withstand the complexities of implementation.

The rally was largely anticipated, with former President Donald Trump having previously signaled optimism about a resolution, suggesting that much of the positive sentiment was already baked into asset prices before the formal announcement.

This pre-pricing dynamic limits the upside potential for equities, as the market now looks for concrete evidence of progress rather than rhetorical commitments.