Stock Market Today: Dow Jumps 575 Points On U.S.-Iran Hopes; Oil Prices Plunge (Live Coverage)

The Dow Jones Industrial Average surged 575 points Monday as diplomatic hopes between the U.S. and Iran eased geopolitical tensions and sent oil prices tumbling. The rally marked a sharp reversal in risk sentiment across equities.

Oil markets led the move lower, though the source does not specify the percentage decline or which benchmark dropped. The energy sector's weakness contrasted with strength in software stocks, which outperformed as traders rotated into growth names on the back of lower input-cost expectations.

Nvidia declined after OpenAI announced a move that pressured the chipmaker, though the specific nature of the OpenAI development was not detailed in the source. The drop weighed on semiconductor sentiment despite the broader market's advance.

The 575-point Dow gain reflects a risk-on shift driven by the prospect of U.S.-Iran dialogue, a catalyst that has historically dampened oil-driven inflation fears and supported equity multiples. Software's outperformance signals continued appetite for high-growth sectors when energy costs retreat.