SPX is trading at $199.97, up 22.35% in pre-market, with no verified catalyst identified. - No verified November 4 company announcement was found to explain the surge. - SPX’s latest reported results were released October 29: Q3 revenue rose 20.5% and adjusted EPS rose 20.1%; full-year adjusted EPS guidance narrowed to $8.20–$8.50 from $8.20–$8.60. - Major indices are higher, but available evidence does not link broad-market strength to SPX’s unusually large gain.