Number of Trading Days Per Year StockMarketClock

The number of active trading days per year varies based on a number of factors. The number matters because the number of trading days per year is used in volatility modeling, option pricing, and other quantitative financial metrics.

252 is the median number of trading days per year in U.S. markets from 2010 to 2021. But that is not the number every year.

So what number do you use?

Why the Number of Trading Days per Year Changes

The number of trading days per year varies based on how holidays align with weekends, but also major events can cause the markets to close. Past major events include:

  • U.S. markets closed for 4 days following the terrorist attacks on September 11, 2001
  • Markets were closed for 2 days in 2012 following Hurricane Sandy
  • In 2018, markets were closed December 5 after former president George H.W. Bush died

List of Upcoming Trading Holidays

Year Trading Days Closures Difference from Median
2021 252 9
2020 253 9 0.397%
2019 252 9
2018 251 10 -0.397%
2017 251 9 -0.397%
2016 252 9
2015 252 9
2014 252 9
2013 252 9
2012 250 11 -0.794%
2011 252 8
2010 252 9

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