What Super Bowl LVI says about the stock market
But Detrick points out that the Super Bowl indicator may no longer work. In 10 out of the last 11 years in which an AFC team won, the S&P has ended the year higher. For example, in 2020, the Kansas City Chiefs won and the S&P 500 was up 16.3%. The New England Patriots, another AFC team, won in both 2017 and 2019; the S&P gained 19.4% in 2017 and 28.9% in 2019.