The U.S. stock market ended higher on Thursday, led by a rally in Microsoft and semiconductor stocks [1].

This surge marks a shift in investor sentiment regarding the cost of artificial intelligence. After months of uncertainty over whether massive capital expenditures would yield returns, Microsoft's latest projections provided the confidence needed to lift the broader technology sector [2].

Microsoft logged its largest daily percentage gain in 18 years [3]. The jump followed a forecast from the technology giant, which addressed anxieties regarding the scale of spending required for AI infrastructure [3].

"Microsoft's forecast eased investor concerns about massive artificial intelligence infrastructure spending," Reuters said [2].

The positive momentum extended beyond a single company, as chip stocks also saw jumps [3]. This recovery in tech followed a period of volatility after the Federal Reserve decided to keep interest rates steady, which had previously caused major indexes to nosedive [4].

Market analysts noted that the recovery was sharp in the semiconductor space, with some reports indicating gains as high as 20% for specific segments [5]. The combination of stable interest rate expectations and a concrete roadmap for AI monetization created a favorable environment for high-growth equities [1].

Wall Street ended higher, with chip stocks jumping and Microsoft logging its biggest daily percentage gain in 18 years after the technology giant gave a forecast that eased fears about massive spending on AI infrastructure, Business News Australia said [3].

“Microsoft logged its largest daily percentage gain in 18 years”

The market's reaction indicates that investors are moving away from fearing the cost of AI development and are instead focusing on the potential for revenue growth. By providing a strong forecast, Microsoft has effectively signaled that the heavy investment in AI infrastructure is a strategic necessity rather than a financial risk, potentially triggering a new wave of investment across the entire semiconductor and cloud computing supply chain.