The S&P 500 experiences an extreme intraday swing, with approximately $1.3 trillion in market value fluctuating within just 75 minutes following an unconfirmed geopolitical headline. The index initially drops 1.24% in under an hour, wiping out around $740 billion after reports suggest that Iran’s lead negotiator, Mohammad Bagher Ghalibaf, had withdrawn from ongoing peace talks.
The report triggers a rapid risk-off move across equities, as investors react to the possibility of escalating tensions in the Middle East. Selling pressure accelerates quickly, reflecting the sensitivity of markets to geopolitical developments and the speed at which information is priced into assets.
However, the narrative reverses shortly after the report is denied. The S&P 500 rebounds approximately 0.8% within 24 minutes, recovering about $480 billion in market capitalization. The sharp reversal highlights the extent to which market moves were driven by unverified information rather than confirmed developments.
Analysts say the episode underscores the growing impact of real-time news flow and algorithmic trading on market volatility. Rapid dissemination—and correction—of information can trigger large-scale capital movements within minutes, amplifying both downside and upside reactions.
