The Toronto Stock Exchange closes for 10 holidays each year, according to TMX money. In addition to holidays observed in the United States, such as New Year's Day, Christmas Day and Good Friday, the Toronto Stock Exchange also observes Family Day, Victoria Day and Canada Day, among others.
The Toronto Stock Exchange closes for a Civic Holiday in August, Labor Day in September and Canadian Thanksgiving in October, according to TMX. As in the United States, the exchange closes for Christmas Day, but unlike U.S. exchanges, the Toronto Exchange also closes for the day after Christmas, known as Boxing Day. On normal trading days, the exchange is open from 9:30 a.m. to 4 p.m., with extended hours available for certain organizations as early as 8 a.m. and as late as 5 p.m. The stock exchange does not close for holidays only observed in the United States, but trades that occur on Martin Luther King, Jr. Day, Memorial Day, Independence Day or American Thanksgiving in U.S. dollars are not settled on those days, according to the stock exchange's website.
The Toronto Stock Exchange dates to the mid-1800s, according to Investopedia. The exchange grew to become the third-largest North American exchange by the 1930s. Toronto's exchange originated computer-assisted trading in the 1970s and trading in decimals in the 1990s.