U.S. stock markets experienced significant declines as the Dow dropped more than 450 points, marking its worst day since the onset of the Iran war. The ongoing conflict and doubts surrounding peace negotiations have left investors worried, leading to a widespread sell-off in stocks, bonds, and gold. The S&P 500 and Nasdaq also suffered substantial losses, with the latter entering correction territory. Rising oil prices, now surpassing $100 per barrel, are compounding inflation fears, further affecting market sentiments. Analysts anticipate continued volatility as the situation in the Middle East evolves.