U.S. stock index futures held steady on Tuesday as investors showed caution ahead of the Federal Reserve's critical monetary policy decision. Nvidia's shares saw a premarket boost of 1.9% after President Trump approved sales of its AI chips to China, contributing to the company's rising earnings forecasts.

Export restrictions on U.S. AI-capable chips have been friction points in U.S.-China trade talks, with the recent development encouraging similar moves for semiconductor leaders like Advanced Micro Devices and Intel. The Dow E-minis nudged up by 29 points while investors remained expectant of insights from the Federal Reserve's two-day meeting.

Despite sticky inflation rates above target, investors predict multiple rate cuts by the central bank, influenced by ongoing labor market evalu

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