only 11 trading days in Q4,S&P 500 closed +/-2% or more 6 times

.The S&P 500 closed with a 2.65% gain today. We are only 11 trading days into Q4 and the S&P 500 has closed +/-2% or more 6 times. There have been 39 occurrences this year, the 6th most since 1980. This happens 16 times a year on average.