US stocks opened sharply lower on Monday, wiping out more than $900 billion in market value within minutes of the opening bell as investors reacted to a sudden spike in oil prices and mounting geopolitical tensions in the Middle East. Crude oil briefly surged above $100 per barrel, intensifying concerns that escalating conflict in the region could disrupt supply and push global energy costs higher, potentially reigniting inflation pressures across major economies. The Dow Jones Industr