The technology sector is experiencing a significant sell-off, driven by investor anxiety regarding the sustainability of heavy spending on Artificial Intelligence infrastructure. Recent corporate earnings have highlighted massive capital expenditures in AI, sparking concerns about future profitability and potential oversupply in the semiconductor industry. This has triggered a sector rotation, with investors moving away from high-growth technology stocks and into more defensive areas of the market. Uncertainty ahead of the Federal Reserve's interest rate decision is also contributing to the negative sentiment.