Nvidia drags Wall Street down as United Airlines says it’s impossible to predict this year’s economy

By STAN CHOE, Associated Press Business Writer
NEW YORK (AP) — Nvidia is pulling Wall Street lower on Wednesday after it said new restrictions on exports to China will chisel billions of dollars off its results.
The S&P 500 was down 0.9% in early trading. The Dow Jones Industrial Average was down 180 points, or 0.4%, as of 9:35 a.m. Eastern time, while the slide for Nvidia and other stocks in the chip industry dragged the Nasdaq composite down a market-leading 1.7%.