US stock futures were little changed on Tuesday after a strong start to a shortened trading week. Dow futures edged up less than 0.01%, while S&P 500 and Nasdaq 100 futures inched up 0.03% and 0.1%, respectively. In regular trading on Monday, the Dow gained 0.47%, the S&P 500 advanced 0.64%, and the Nasdaq Composite rose 0.52%. AI chip heavyweight Nvidia shares advanced 1.5% on reports that the company plans to begin shipping H200 AI chips to China by mid-February. Oracle also rose 3.2% while Micron Technology grew 4%. However, traders anticipated the release of the second estimates of Q3 GDP and updates on the PCE prices index for July, August, and September. The US stock market will shut early on Wednesday for the Christmas Eve start of the holidays, and will be closed all of Thursday for Christmas Day.