The Dow pulled back more than 150 points in regular trading, while the S&P 500 and Nasdaq Composite shed 0.4% and 0.7%, respectively. The US stock futures traded higher on Thursday, 27 August, as blockbuster second-quarter numbers from Nvidia boosted demand for chip stocks across the board. Nvidia premarket shares fell 4-5% while Dow, S&P 500 and Nasdaq 100 futures rose. What the Huang probe and Nov.