Traders work on the floor of the New York Stock Exchange (NYSE) on November 07, 2025 in New York City.November is historically the best month for the S&P 500, which gains an average of 1.8% during the period, according to the Stock Trader's Almanac.But the first full trading week of the month saw stocks caught in November rains.The S&P 500 and Dow Jones Industrial Average each lost more than 1%, while the Nasdaq Composite shed around 3% — that's its largest weekly loss since the tech-heavy index slumped 10% ...