Markets after S&P gains 15% in a year

1:14 PM ET Wed, 3 Jan 2018

According to our data partners at Kensho, after the S&P finished 15% up or more in a year the index is positive 77% of the time the following year, returning an average of 8.8% since 1980. The Nasdaq and Dow also have good track records after a big year.