Seasonally, from November 19 to December 7, the S&P 500 has rallied in 15 of the last 15 years for an average rally of 30 points. What is notable about this seasonal is that it worked in 2008. If this seasonal is to work again in 2018, the December S&P 500 must close above 2743.00 on December 7. Past performance is no guarantee of future results.