Micron Technology’s market valuation surged past $1 trillion this week, driven by robust demand for its memory chips amid an accelerating global race in artificial intelligence (AI) technology. The company’s stock jumped nearly 20 percent following a significant price target increase from UBS, which raised its outlook to over $1,600 per share.

UBS highlighted that the market is beginning to assign a more conventional valuation multiple to Micron, anticipating further upward re-ratings as broader structural shifts in the memory chip industry linked to AI technology become clearer. Micron is among several semiconductor manufacturers experiencing heightened demand as AI applications place increased pressure on memory and processing capabilities. The company has also benefited from supply constraints, enabling it to implement price increases in response to near-term chip shortages.

Micron’s performance contributed to gains in major U.S. equity indexes, with the S&P 500 advancing 0.6 percent and the Nasdaq Composite climbing 1.2 percent to new record highs. These gains were supported by optimism over both Micron’s prospects and potential progress toward resolving tensions between the United States and Iran. In contrast, the Dow Jones Industrial Average declined modestly by 0.2 percent during the same session.

Despite positive momentum in equities, market participants are increasingly concerned about rising borrowing costs amid persistent inflationary pressures, growing government debt, and geopolitical risks. In the global bond market, yields on long-term government debt have risen sharply. Notably, the yield on the 30-year U.S. Treasury recently surpassed 5 percent, a level not seen since prior to the 2008 financial crisis. This shift reflects investors’ reassessment of inflation risks and the sustainability of government borrowing amid evolving economic conditions.

For years, developed economies benefited from low borrowing costs that facilitated large-scale fiscal spending, economic stimulus programs, and tax cuts with limited market resistance. However, analysts suggest that this period of favorable financing is drawing to a close as debt burdens expand and inflation remains a persistent concern.

The bond market’s responsiveness to geopolitical developments remains pronounced. For example, Treasury yields declined after crude oil prices eased on hopes of progress toward a U.S.-Iran agreement, underscoring the close linkage between energy prices, inflation expectations, and fixed-income markets. Economic commentators also point to broader structural factors, including shifts in monetary policy and supply-chain dynamics, as contributing to the recent rise in government bond yields.