Stock market today: Dow, S&P 500, Nasdaq trade mixed ahead of key inflation data

US stock futures were little changed on Tuesday morning as investors awaited a key inflation report that could sway the Federal Reserve's interest rate decision next month.Futures on the Dow Jones Industrial Average (YM=F) rose 0.3%, while those on the S&P 500 (ES=F) also edged higher. Contracts for the Nasdaq-100 (NQ=F) fell 0.3% after stocks rallied on Monday.Investors will be watching for the release of the Consumer Price Index, which is expected to show cooling inflation. Economists forecast inflation to rise 0.3% from a month earlier, and core inflation, which excludes food and energy prices, to tick down to 0.2%.Nvidia (NVDA) investors continue to reel from the board's investigation into CEO Jensen Huang following reports of his affair with an alleged Chinese spy. Nvidia stock rebounded slightly on Tuesday morning after falling over 4% the day before.Oil prices are falling, with Brent crude (BZ=F), the international benchmark, and WTI crude (CL=F), the US benchmark, declining by over 2%. While most of the third quarter earnings season is in the rearview mirror, Nvidia-backed neocloud CoreWeave (CRWV) and quantum computing stocks Quantum (QBTS) and Rigetti Computing (RGTI) report results after the bell today.