Thursday 01 Jan New Year Holiday
Thursday 23 Apr National Sovereignty and Children's Day
Friday 01 May Labour and Solidarity Day Tuesday 19 May Commemoration of Ataturk, Youth and Sports DayThursday 16 Jul Ramadan Feast (Half Day)
Friday 17 Jul Ramadan FeastSaturday 18 Jul Ramadan Feast
Sunday 19 Jul Ramadan Feast Sunday 30 Aug Victory DayWednesday 23 Sep Sacrifice Feast (Half Day)
Thursday 24 Sep Sacrifice Feast
Friday 25 Sep Sacrifice FeastSaturday 26 Sep Sacrifice Feast
Sunday 27 Sep ScarificeWednesday 28 Oct Republic Day (Half Day)
Thursday 29 Oct Republic Day
Source: http://borsaistanbul.com/en/products-and-markets/official-holidays