Day Date Month Holiday Monday 02 Jan Berchtoldstag Friday 14 Apr Good Friday Monday 17 Apr Easter Monday Monday 01 May Labour Day Thursday 25 May Ascension Day Monday 05 Jun Whitmonday Tuesday 01 Aug National Day Monday 25 Dec Christmas Tuesday 26 Dec St. Stephen's Day Source: http://www.six-swiss-exchange.com/shares/trading/trading_calendar/trading_and_settlement_calendar_en.html#