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Market Overview - The Nasdaq index experienced a significant decline, nearly erasing its gains for the year, with a drop of 2.39% during intraday trading [2] - Major U.S. stock indices closed lower, with the S&P 500 down 0.84% at 6917.81 points, the Nasdaq Composite down 1.43% at 23255.19 points, and the Dow Jones Industrial Average down 0.34% at 49240.99 points [2][3] - Among the seven major tech companies, only Microsoft saw an increase, while Nvidia, Facebook, and Amazon all fell by more than 2% [2] Software Sector Impact - A sell-off in software stocks was triggered by the release of an AI legal plugin by Anthropic, leading to a significant drop in the software sector [4] - The U.S. software services index fell by 4.10%, with all component stocks declining [4] Gold and Commodities - Following the sell-off in tech stocks, international gold prices rebounded, with COMEX gold futures nearing $5000 per ounce [5] - The U.S. metals sector saw gains, with Southern Copper rising over 11% and AngloGold up over 6% [5] Geopolitical Tensions - Rising tensions between the U.S. and Iran have led to an increase in oil prices, with NYMEX WTI crude futures reported at $63.77 per barrel [8] - The U.S. military shot down an Iranian drone, escalating geopolitical tensions in the region [7]