Trading day

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In business, the trading day or regular trading hours (RTH) is the time span that a particular stock exchange is open. For example, the New York Stock Exchange is, as of 2015, open from 9:30 AM Eastern Time to 4:00 PM Eastern Time. Trading days are usually Monday to Friday. When a trading day ends, all share trading ends and is frozen in time until the next trading day begins. There are several other special circumstances which would lead to a shortened trading day, or no trading day at all, such as on holidays.

The NYSE and NASDAQ average about 253 trading days a year. This is from 365.25(days on average per year) * 5/7(proportion work days per week) = 260.89 - 6(weekday holidays) - 3*5/7(fixed date holidays) = 252.75 ~ 253. The holidays are New Year's Day, Martin Luther King Jr. Day, Washington's Birthday, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day.[1] Up to three trading days (the days surrounding Independence Day, Thanksgiving, and Christmas Day) are shortened, i.e. the exchanges are open from 9:30AM–1:00PM, depending on where they fall in the calendar year.

Trading Days for 2016[edit]

There are exactly 252 trading days in 2016. January has the fewest (19), and August the most (23), with an average of 21 per month, or 63 per quarter.[2]

Out of a possible 366 days, 105 days are weekend days (Saturday and Sunday) when the stock exchanges are closed. Eight of the nine holidays which close the exchanges fall on weekdays, with Christmas being observed on Monday, December 26. There is one shortened trading session on Friday, November 25, the day following Thanksgiving Day.

Trading Days for 2017[edit]

There are exactly 251 trading days in 2017. February and April have the fewest (19), and March and August the most (23), with an average of 20.9 per month, or 62.8 per quarter.[3]

Out of a possible 365 days, 105 days are weekend days (Saturday and Sunday) when the stock exchanges are closed. Eight of the nine holidays which close the exchanges fall on weekdays, with New Year's Day being observed on Monday, January 2. There are two shortened trading sessions: on Monday, July 3, the day before Independence Day, and on Friday, November 24, the day following Thanksgiving Day.

Trading Days for 2018[edit]

There are exactly 252 trading days in 2018. February and September have the fewest (19), and August the most (23), with an average of 21 per month, or 63 per quarter.[4]

Out of a possible 365 days, 104 days are weekend days (Saturday and Sunday) when the stock exchanges are closed. All nine holidays which close the exchanges fall on weekdays. There are three shortened trading sessions: on Tuesday, July 3, the day before Independence Day, on Friday, November 23, the day following Thanksgiving Day, and on Monday, December 24, the day before Christmas.

Trading Day Time Zones[edit]

Each Stock Exchange has opening hours that are based on specific time zones.[5] People can trade in these exchanges remotely using electronic trading platforms.[6] For those trading in different parts of the world, there are unique Trading Days based on the hours associated with any given time zone. For example, NASDAQ is open 9:30-16:00 ET and anyone outside of the Eastern Standard time zone will have a different Trading Day. The Trading Day for a person in Vancouver would be 6:30-13:00. During the part of the year when the US is on Standard time, in it would be 17:30-24:00 in Moscow, and in Shanghai it would be 22:30-5:00.[7] Remote traders should find their trading hours based on the Stock Exchange hours and time zone.

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