US markets are opening Tuesday with a mix of relief and caution as investors digest the potential end of the federal government shutdown, the longest in history. Monday's Senate approval of a funding bill helped spark a broad rally, with the S&P 500 climbing roughly 1.5%, the Nasdaq Composite rising 2.3%, and the Dow Jones Industrial Average gaining about 0.8%.
Despite the positive momentum, futures indicate a cautious tone. S&P and Nasdaq futures have edged lower amid lingering concerns about high valuations in the technology sector, particularly in AI and infrastructure-linked stocks. Nvidia rebounded sharply, while some smaller tech names reported weaker revenue guidance, highlighting the uneven landscape in the sector.
