New Delhi, Nov. 4 -- NEW YORK - US stock futures fell and Asian technology shares sold off early Wednesday as Democrats won control of Congress, raising investor concern that a new political balance in Washington could slow the buildout of artificial-intelligence data centers.

The moves followed a mixed close on Wall Street on Tuesday. The Wall Street Journal reported that the Dow Jones Industrial Average fell 197.26 points, or 0.38%, to 51,786.72. The S&P 500 gained 27.52 points, or 0.36%, to 7,568.92, and the Nasdaq Composite rose 207.65 points, or 0.83%, to 25,372.01.

Chip stocks led the gains, and the S&P 500 ended a three-day losing streak, according to reports from CNBC. Micron rose 2.5%, Nvidia 2.3%, AMD 3.7% and Broadcom 3.1%, a...