BIST Stock Indices are calculated using 2 different methods, Market Cap Weighted or Non-Market Cap Weighted, depending on the weighting theme.
BIST Market Cap Weighted Stock Indices have been created to measure the price and the return performances of group of stocks traded on Borsa İstanbul.
In Market Cap Weighted Stock Indices, weight of a stock may change other than price fluctuations like corporate actions or free float ratio changes during index period.
BIST Non-Market Cap Weighted Stock Indices have been created to measure the return performances of group of stocks according to index theme where weights determined at the beginning of the index period.
In Non-Market Cap Weighted Stock Indices, weight of a stock may change only as a result of price fluctuations during index period. If free float market value of a stock changes during Index Period for a reason except for price fluctuations, by re-calculating weighting factor, given stock’s weighting will be equalized to last session close weighting before this change. As a result, weighting of stocks in index is not affected from other factors (for example capital decrease/increase, merger/spin-off etc.) except for price and weighting theme.
16 March 2023
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the second quarter of 2023
18 January 2023
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2023 – January 31, 2024 has been changed
19 December 2022
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the first quarter of 2023
30 September 2022
Borsa İstanbul announces the constituent changes to the BIST Sustainability and BIST Sustainability Participation Indices for the fourth quarter of 2022
21 September 2022
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the fourth quarter of 2022
28 June 2022
Announcement on the Changes to the Ground Rules of BIST Market Cap-Weighted Stock Indices
21 June 2022
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the third quarter of 2022
20 May 2022
Announcement about the Modifications in the Current Business Classification System and Changes to Some Companies' Sectors and Indices
20 May 2022
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2022 - May 31, 2023 Period
16 May 2022
Announcement on the Changes to the Ground Rules of BIST Market Cap-Weighted Stock Indices and BIST Non-BIST Market Cap-Weighted Stock Indices
22 March 2022
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the second quarter of 2022
18 January 2022
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2022 – January 31, 2023 has been changed
17 December 2021
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the first quarter of 2022
23 November 2021
BIST Participation 30 Equal Weighted Return Indices start to be calculated
16 September 2021
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the fourth quarter of 2021
16 July 2021
BIST Market Cap Weighted Stock Indices Ground Rules have been updated due to changes in BIST Sustainability Index assessment methodology
18 June 2021
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the third quarter of 2021
06 May 2021
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2021- May 31, 2022 Period
08 April 2021
BIST Market Cap Weighted Stock Indices Ground Rules has been updated due to 3 new indices, namely “BIST 50-30”, “BIST 50-30 Capped 10” and “BIST 50-30 Capped 25”
15 March 2021
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the second quarter of 2021
16 February 2021
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period March 1, 2021 – January 31, 2022 has been changed
30 December 2020
Announcement Regarding Postponement of BIST Dividend and BIST Dividend 25 Indices’ Periodic Review by 1 Month
21 December 2020
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the first quarter of 2021
26 November 2020
BIST Sustainability Index Constituents for December 2020 - October 2021 Index Period have been determined
18 September 2020
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the fourth quarter of 2020
18 September 2020
BIST Stock Indices Ground Rules has been updated
29 July 2020
BIST Sustainability Index, The List of Companies Subject to Assessment in 2020 has been revised
19 June 2020
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the third quarter of 2020
16 June 2020
Borsa İstanbul is launching the first Non Market Cap Weighted Stock Index
11 May 2020
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2020- May 31, 2021 Period
06 April 2020
BIST Stock Indices Ground Rules has been updated due to 2 new indices, namely “BIST 30 Capped 25” and “BIST 100 Capped 25”
19 March 2020
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the second quarter of 2020
19 February 2020
BIST Stock Index Values will be divided by 100
20 January 2020
BIST Stock Indices Ground Rules has been updated in order to align the BIST Liquid Bank and BIST Liquid 10 Ex Banks indices with the Communiqué on Principles of Exchange Traded Funds
20 January 2020
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2020 – January 31, 2021 has been changed
17 December 2019
Borsa İstanbul announces the constituent changes to the BIST Stock Indices for the first quarter of 2020
28 October 2019
BIST Stock Indices Ground Rules has been updated in order to adapt new market structure changes and 3 new indices, namely BIST Liquid Banks, BIST Liquid 10 Ex Banks and BIST ECM indices
25 October 2019
BIST Sustainability Index Constituents for November 2019 - October 2020 Index Period have been determined
20 September 2019
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the fourth quarter of 2019
21 June 2019
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the third quarter of 2019
17 May 2019
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2019- May 31, 2020 Period
18 March 2019
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the second quarter of 2019
22 January 2019
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2019 – January 31, 2020 has been changed
21 December 2018
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the first quarter of 2019
20 December 2018
BIST Stock Indices Ground Rules has been updated
10 December 2018
BIST Stock Indices Ground Rules has been updated
26 October 2018
BIST Sustainability Index Constituents for November 2018 - October 2019 Index Period have been determined
19 September 2018
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the fourth quarter of 2018
05 July 2018
BIST Stock Indices Ground Rules has been updated
19 June 2018
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the third quarter of 2018
08 June 2018
BIST Stock Indices Ground Rules has been updated
22 May 2018
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2018- May 31, 2019 Period
22 March 2018
Borsa İstanbul announces constituent changes to the BIST Equity Indices for the second quarter of 2018
19 January 2018
Constituents of the BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2018 – January 31, 2019 has been changed
08 January 2018
BIST Sustainability Index, The List of Companies Subject to Assessment in 2018 has been revised
29 December 2017
BIST Sustainability Index Ground Rules Has Been Updated
18 December 2017
Borsa Istanbul announces constituent changes to the BIST Equity Indices for the first quarter of 2018
27 October 2017
BIST Sustainability Index Constituents for November 2017 - October 2018 Index Period have been determined
20 September 2017
Borsa Istanbul announces constituent changes to the BIST Equity Indices for the fourth quarter of 2017
22 June 2017
Borsa İstanbul announces constituent changes to the BIST Equity Indices for the third quarter of 2017
22 May 2017
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2017- May 31, 2018 Period
20 March 2017
Borsa İstanbul announces constituent changes to the BIST Equity Indices for the second quarter of 2017
20 January 2017
List of the equities included in BIST Dividend and BIST Dividend 25 Indices for the period February 1, 2017 – January 31, 2018 has been changed
05 January 2017
BIST Sustainability Index, The List of Companies Subject to Assessment in 2017 has been revised
14 December 2016
Borsa İstanbul announces constituent changes to the BIST Equity Indices for the first quarter of 2017
25 November 2016
BIST Technology Capped Indices will be calculated
25 October 2016
BIST Sustainability Index Constituents for 2016-2017 Index Period have been determined
21 September 2016
Borsa İstanbul announces constituent changes to the BIST Equity Indices for the fourth quarter of 2016
17 June 2016
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the third quarter of 2016
20 May 2016
Borsa İstanbul announces the constituent changes to the BIST SME Industrial Index for June 1, 2016- May 31, 2017 Period
22 March 2016
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the second quarter of 2016
07 March 2016
BIST Sustainability Index Research Methodology has been revised
04 January 2016
BIST Sustainability Index Ground Rules are revised
22 December 2015
Borsa İstanbul announces the constituent changes to the BIST Equity Indices for the first quarter of 2016
27 November 2015
BIST Indices Ground Rules are revised
17 September 2015
BIST Equity Indices constituent for the fourth quarter of 2015 have been changed
19 June 2015
BIST Equity Indices constituent equities for the third quarter of 2015 have been changed
15 May 2015
BIST SME Industrial Index Revisions (June 1, 2015- May 31, 2016 Period)
18 March 2015
List of the equities included in BIST Equity Indices for the second quarter of 2015 has been changed
31 December 2014
“The list of companies subject to assessment” of BIST Sustainability Index for the period November 2015 – October 2016 is revised
31 December 2014
BIST Stock Indices Ground Rules are revised
31 December 2014
BIST Sustainability Index Ground Rules are revised
16 December 2014
List of the equities included in BIST Equity Indices for the first quarter of 2015 has been changed
18 September 2014
List of the equities included in BIST Equity Indices for the fourth quarter of 2014 has been changed
16 June 2014
List of the equities included in BIST Equity Indices for the third quarter of 2014 has been changed
24 March 2014
List of the equities included in BIST Equity Indices for the second quarter of 2014 has been changed
20 December 2013
List of the equities included in BIST Equity Indices for the first quarter of 2014 has been changed
30 September 2013
List of the equities included in BIST Equity Indices for the fourth quarter of 2013 has been changed
21 June 2013
List of the equities included in BIST Equity Indices for the third quarter of 2013 has been changed