US Stocks Fall Most Since Iran War Began on Ceasefire Doubts

US equities tumbled on Thursday, with the S&P 500 Index posting its worst loss since January, amid doubts over a potential ceasefire deal between the US and Iran and a climb in Treasury yields.

The benchmark S&P 500 Index’s loss was the worst since the Iran war began. Its 1.7% decline dragged it to its lowest closing level since September, with eight out of 11 sectors in the red. The tech-heavy Nasdaq 100 Index slid 2.4%, led by megacap names such as Nvidia Corp. and Meta Platforms Inc, also a near-seven month low.