This year:New Year's Day January 1, 2009 Martin Luther King Jr. Day January 19, 2009President's Day February 16, 2009Good Friday April 10, 2009Memorial Day May 25, 2009Independence Day July 3, 2009...
Today - Thursday 15th March - Stock Market is open. The Market is closed on weekends and on National Holidays only
No
The US stock markets will be closed Monday May 26th for Memorial Day. no Indian stock mkt is open on monday
Yes, it is possible to trade stocks "after hours" through brokers that facilitate this type of trading.