Thursday 01 Jan New Year's Day
Friday 02 Jan Berchtoldstag
Friday 03 Apr Good Friday
Monday 06 Apr Easter Monday
Friday 01 May Labour Day
Thursday 14 May Ascension Day
Monday 25 May Whit Monday
Thursday 24 Dec Exchange Holiday
Friday 25 Dec Christmas Day
Thursday 31 Dec Exchange Holiday
Source: http://www.six-swiss-exchange.com/download/participants/regulation/trading_guides/trading_calendar_2015.pdf