The number of trading days in a year is 252 days on average. However, factors like holidays, weekends, leap years, and other significant events can change the number of trading days each year.

How Many Trading Days in a Year in US Markets?

The US stock market averages 252 trading days in a year. You can calculate this number with the following formula:

• Number of days in the year – number of weekend days – number of holidays = trading days in the year

Why Does the Number of Trading Days in a Year Vary?

Holidays falling on certain days each year can affect the number of trading days in a year. Additionally, other events and leap years can influence the number of trading days in specific years.

The stock market doesn’t close on every federal holiday, but you can view all the holidays it is closed on below.

Most years include 104 weekend days, but some can differ depending on where the first weekend of the year falls.

Every four years is a leap year, which means there will be an extra trading day on some of these years.

• Significant events

The stock market may close due to significant events, such as when it closed after the 9/11 attacks in 2001.