Just in case you were wondering (and I was), here's the rundown of when the TSX is open over Christmas 2010.
2010 Stock Market Holidays - Stock Markets Closed
** Please note that the TSX and the TSX Venture Markets will close at 1:00 p.m. on Friday, December 24, 2010. The Extended Hours will begin at 1:10 p.m. until 1:30 p.m. on this date.
- Christmas Day - December 27, 2010 (in lieu of December 25)
- Boxing Day - December 28, 2010 (in lieu of December 26)
** On December 31, 2010 regular trading hours will be observed.
Pretty bizarre all told. They open tomorrow Friday 24th for 3 1/2 hours while the US is closed, then shut up shop until Wednesday 29th.