PANews, November 28th - According to Zhitong Finance, Saul Knapps of Scope Markets stated that U.S. stock traders are bracing for volatile trading as the U.S. markets reopen after the Thanksgiving holiday due to a system outage at the CME Group. He noted that pending orders resulting from the freeze on futures trading, including those for the S&P 500 and Nasdaq 100 indices, will lead to a surge in orders when trading resumes. Because futures trading was forced to halt, "the market has temporarily lost a key tool for determining where prices should be," Knapp said. Before the outage, U.S. stock index futures were higher, with Nasdaq futures frozen at a 0.2% gain, while Dow Jones Industrial Average and S&P 500 futures were both up 0.1%.