S&P 500 Futures Surge 2.5% Following Trump Statement Amid Volume Spike

On March 18, 2026, S&P 500 e-Mini futures trading recorded a significant volume jump around 6:50 a.m. in New York, which was particularly notable given the otherwise subdued market conditions. Subsequently, President Trump announced via social media that U.S. and Iran had held talks, leading to a rally of over 2.5% in S&P 500 futures by 7:05 a.m. In contrast, West Texas Intermediate crude oil futures experienced a decline of nearly 6% following the announcement. The unusual trading volume prior to the announcement raised concerns among traders due to the lack of a direct catalyst.