The U.S. stock market is expected to face opening volatility due to a CME system outage.

On November 28, according to Jinse Finance, Saul Knapps from Scope Markets stated that due to a system outage at CME Group, US stock traders are preparing for volatile market conditions when the US market reopens after the Thanksgiving holiday. He noted that the accumulation of unfilled orders caused by the freeze in futures trading, including S&P 500 and Nasdaq 100 futures, will result in a surge of orders once trading resumes. Because futures trading was forced to pause, "the market temporarily lost a key tool for determining where prices should be," Knapp said. Before the system outage, US stock index futures were rising, with Nasdaq futures frozen at a 0.2% gain, and Dow Jones Industrial Average and S&P 500 futures both up 0.1%.