What history tells us happens to the S&P 500 after a strong year-end rally, strategist says By: MarketWatch January 04, 2021 at 07:16 AM EST U.S. stocks are set to start the new year in positive fashion, after ending a volatile 2020 at record highs. Read More >> Related Stocks: Centene Corp FLIR Systems Herbalife Ltd MGM Resorts International Magellan Health Teledyne Technologies Inc